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RT-800 User Manual

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2. ca 810 al ca 475 Fig 48 Antenna Unit mechanical dimensions Page 69 of 74 RHOTHETA User Manual RT 800 8 2 5 Antenna Unit Mast Flange Measuring units mm millimeters 120 105 lt 5 0 u L L L 65 _10 Fig 49 Antenna Unit mast flange mechanical dimensions 8 2 6 Technical Data Antenna Unit Weight Approx 5200 g Permitted operating temperature 40 C to 60 C Permitted storing temperature 55 C to 80 C Ingress protection IP 67 Temperatures below 10 C resp 14 F may require a warming up time of up to 15 minutes Page 70 of 74 RHOTHETA User Manual RT 800 9 Appendix 9 1 Error Messages Error message Error location Cause Error 01 Antenna Unit I l RR i defective receiver circuit board in AU AU No Receiver Receiver Error 04 ER S Sun smo Antenna 0 Error in receiver synthesizer oszillator in AU Error 05 Connection No serial data from DCU to AU DCU gt AU No Data_ Display gt Antenna SS ae Error 06 Connection Incompatible resp bad data connection between DCU DCU gt AU BadData Display gt Antenna and AU E 07 Main voltage supply Voltage supply below 10 V Error 08 Connection Incompatible resp bad data connection between AU AU gt DCU BadData Antenna gt Display and DCU No seria
3. Faulty settings may lead to misfunctions of the system Menu Setup Antenna Unit O Mounted Upside Down Audio Line Output 50 Antenna Offset 000 Deg PS RAM Cl Compass Compens Off Default Default Value 6 O Calibration Off Decoding Time 500 ms 75 Seconds O 5 Minutes 1 Hour 10 Hours Address ID CPSS Dialog Time Fig 41 Menu System table default settings 5 3 1 Address ID In menu item Address ID the internal device addressing can be set Addresses from 0 to 99 are possible 5 3 2 Antenna Unit The systems dipole antenna can only be mounted in vertical alignment The mounting flange is pointing to the ground for standard mounting For hanging mounting flange on the top select menu item JN Mounted Upside Down for correct signal processing This is strictly not recommended for VTS fixed installations 5 3 3 Audio Line Output Adjust level of Audio Line Output signal The level is adjustable from 10 to 99 The Audio Line output has a determined output level and is independent of the volume adjustment This is the input signal of the IP Audio encoder 5 3 4 Antenna Offset The bearing antenna has to be mounted North orientated the North resp 0 marker has to point exactly to north If the antenna cannot be mounted for differnet reasons pointing Page 52 of 74 RHOTHETA User Manual RT 800 exactly to north the deviation correction can be put in here The offset is adjustable from 0
4. Page 37 of 74 RHOTHETA User Manual RT 800 4 4 Adjusting Monitoring Operation and ID only Filtering For monitoring operation the emergency frequency 121 500 MHZ is stored permanently in the system For additional surveillance three more frequencies channels can be stored in the specified frequency ranges Each monitoring frequency can be combined with the selective emergency transmitter filtering function ID only selective squelch Monitoring Settings G 121 584 MHz Filter Programmed permanent emergency frequency ID onl Independently selctable surveiling frequencies Selected field N Switching on off of selected frequency resp ELT PLB function Opening dialogue window for adjusting new monitoring frequency Switching monitoring operation On and Off Fig 27 Dialogue window Monitoring settings Open dialogue window using key e Select frequency field or selecting field for emergency transmitter filtering ID only selective squelch by using keys gf QOD The selected field is displayed with a red frame e Change monitoring parameter with following functions F1 07170 F2 Fs Sei Switching ON monitoring operation Monitoring operation is indicated by illumination of the monitoring LED At the same time the selected monitoring frequencies are displayed on the left side of the bearing display Switching OFF monitoring operation Top left the monitoring display is displaying Monitoring Off If the
5. 13 Example Timing Cospas Sarsat 3 2 3 Monitoring operation with filtering of Emergency Transmitters ID Only In order to activate the emergency transmitter filtering function see 4 4 Signals transmitted by emergency transmitters PLB ELT EPIRB are modulated with a typical sweeping tone When surveilling in order to exclude false alarms caused by disturbing signals or by nonauthorized radio communication the function emergency transmitter filtering ID Only may be called up Once activated all radio signals without the prescribed sweeping tone for emergency transmitters will be suppressed Alert will be triggered if a modulated emergency signal is recognized Caution For very weak signals recognition of modulation may take a certain time Releasing an alarm can be delayed in this case Page 22 of 74 RHOTHETA User Manual RT 800 3 3 Standby Operation Activating standby operation see 4 5 During standby operation the DF system monitors the corresponding emergency frequency the display is dimmed and the audio output is switched off Once an emergency signal is detected on these frequencies the system will release alarm and the display is illuminated In order to avoid false alarms caused by other signals the surveillance is coupled automatically with the emergency transmitter filtering function ID Only In order to end standby operation press any key If an internal system error is recognized the standby operation will be finis
6. 6 159 488 MHz 6 Ch 62 Coast 6 Alarm Only Channel selected 168 785 MHz 6 Decoding Frequency range for editing P of Fast Marine 154 585 HHz 6 OFF sal 3 L BeepTone 6 SNR Adjustment e for each channel F5 Function key for activation of Fast Marine Scan F1 Function key for F2 Function key for F4 Function key for acitvation of Fast activation and F3 Function key for tivati fal Channel Scan deactivation of channels channel selection and SNR DIE only adiustment decoding during Fast Fig 16 Scan Dialogue 3 4 1 Fast Channel Scan The Fast Channel Scan enables the scanning of eight freely selectable frequencies accross all supported bands in a very fast manner The scan process lasts less than two seconds All channels are scanned continuously If not all channels are enabled the duration of one scanning cycle is reduced accordingly e g if only four channels are enabled the duration of one scanning cyle is approximately one second Navigation in the dialogue is possible using the arrow keys EM QO l The currently selected item channel or SNR value is surrounded by a red rectangle To choose a channel select the respective channel and press the key F3 BR The frequency dialogue is shown to enter the new frequency or channel In Fast Channel Scan mode the Autosquelch is enabled automatically The value of the Autosquelch can be adjusted slightly by the user The SNR value indicates the count of level points above
7. Auto Squelch function ensures that the squelch level is always adjusted to a value a little bit above the noise level If noise level is rising the squelch level is rising also As soon as the noise level drops the squelch level is adjusted accordingly Caution Because the DF system can not determine between noise and countinous signals the Auto Squelch will rise the squelch level slowly until the squelch level is above the signal level The result is that the signal is lost So if you are bearing countinous signals you have to deactivate the Auto Squelch This is done by changing the squelch level using the Up Down Keys O at the main window or at the squelch dialogue The squelch marker then changes its appearance and displays the current squelch value Activation To activate the Auto Squelch press the function key F2 ise in the squelch dialogue having selected the desired frequency In frequency bands with short signals eg Cospas Sarsat Band the Auto Squelch is activated automatically Squelch Marker with Auto Squelch activated If the Auto Squelch is activated the squelch l marker turns into green and instead of the Fig 26 Auto Squelch Marker squelch level an A is displayed Notice e During Cospas Sarsat Scanning the Auto Squelch function can not be deactivated e The Auto Squelch function can not be activated for the emergency frequecies of the monitoring mode because this signals are mostly continuous signals
8. Display of Cospas Sarsat Scanning Mode Function DECODE CP SS By pressing the function key F5 the decoding dialogue for Cospas Sarsat signals is shown The selected Cospas Sarsat frequency is transferred to the Decoding Dialogue A detailled description of the Decoding Dialogue is in chapter 3 6 Page 27 of 74 RHOTHETA User Manual RT 800 3 6 Cospas Sarsat Decoding Data Content In order to receive a Cospas Sarsat data pulse and to decode its content the main frequency has to be adjusted to a Cospas Sarsat frequency first This can be achieved manually or faster by selecting the frequency directly in the SAR Dialogue For decoding you have to press function key F2 in the main screen choose the frequency and then press F5 Seege to start the decoding of Cospas Sarsat signals In this mode the bearing operation and also the monitoring function will be interrupted In order not to suppress other emergency signals the selected decoding mode is limited to 75 sec visible on progress bar After that the system is returning to the previous operating mode For special purposes this time could be changed by the menu item Menu System CPSSDlg Tim A Cospas Sarsat pulse will be broadcasted every 50 sec 5 sec While the waiting period a pulse will be received if the transmitter is not out of range Once received a valid pulse the function key F1 Mi starts flashing and an acoustic warning tone is put out By pressing key F1 the acous
9. a list Note International valid emergency frequencies on position 1 cannot be moved e Open dialogue window using key e Use arrow keys GO for option e Use function keys F1 to F4 to select corresponding frequency band your list will be shown on the display e Use arow keys QO to mark frequency channel to be moved and confirm selection using key Ok The selected frequency channel is marked with a green flashing bar e Shove marked frequency channel using arrow keys QO to the desired position and confirm using key Ok 4 8 4 Delete a Frequency Channel in the Storage List Note International valid emergency frequencies stored on first postion in each frequency band cannot be deleted e Open dialogue window using key e Select option QOD e Select desired frequency band using function keys F1 to F4 The list will be shown in the display e Mark frequency channel to be deleted using arrow keys QO and confirm with key Ok The selected frequency channel is marked with a green flashing bar e The DF system now requires a confirmation of the deleting process Confirm using key Page 46 of 74 RHOTHETA User Manual RT 800 4 8 5 Store a new Frequency Channel in a Storage List e Open dialogue window using key e Select option using arrow keys QO e Function keys F1 to F4 select desired frequency band The up to now provided list will be shown in the display e Open dialogue window using key Ok in order to put in the frequen
10. alarm relay output will be activated simultaneously when recognizing an emergency signal Like the internal warning tone the relay output can be deactivated by pressing key Sn The alarm relay output may be used for an warning bell or similar 3 1 3 Function Repeat The function Repeat will show once again the last valid bearing value Pressing the function key F5 tle will show the last bearing value with its corresponding digital signal level flashing for 3 seconds For mobile applications With an external compass activated true magnetic bearing a vessels change of heading will be considered automatically for the relative bearing 3 1 4 Function Clear The function clears the internal bearing value averaging buffer The averaging buffer enhances bearing accuracy and delivers a useful bearing display even with bad received signals e g distant transmitter receiving gaps The averaging procedure causes a contouring error which might influence the bearing value if changing heading too quickly in Page 19 of 74 RHOTHETA User Manual RT 800 case of a vessel installation In this case the indicated bearing value will be lagging a bit to the actual bearing value Pressing function key F1 after a distinct change of heading the corrected bearing value will be displayed immediately In connection with an alarm flag or an error message the key deactivates warning tone and alarm relay output 3 1 5 Function Channel 16 Pressing f
11. as a three digit number 17 Page 13 of 74 RHOTHETA User Manual RT 800 Designation See page Indication of selected reference direction Relative Brg bearing relative to longitudinal axis of antenna 17 Magnetic Brg Magnetic North bearing relative to magnetic North True Bearing Geographic North bearing relative to geographic North 21 Direction of reference Page 14 of 74 RHOTHETA User Manual RT 800 2 4 Rear View Power Supply Encoder Channel 1 Devices Service amp Maintenance Channel 2 Remote Ctrl Remote Ctrl GPS RS422 Test Program RS232 AUDIO Ethernet NMEA Bus RS232 RHOTHETA Elektronik GmbH Direction Finder RT 800 C Made in La x Germany Fig 4 Rear view Pos Designation Wen Sp Power Supply Power supply connector with replacable fuse 6 END Audio Encoder Channel 71 Audio Output for DF and ecoder cofiguration 59 Ethernet ports for remote control NMEA Ethernet Remote Control Channel 1 and IP Audio AUDIO Ethernet Connector ports for AU antenna unit and optional 4 Devices GPS connector for the option UTC Time Base fuse for AU GPS power supply MES Slave DCU Ethernet connector for factory use only Service amp Maintenance Ports for optional connections SW Update and local NMEA Output Option 2 Channel Remote Control 7 Remote Control Channel 2 Ethernet ports for remote control NMEA Etherne
12. but also high insensitiveness to external disturbing fields are achieved The DF system is working with the Doppler principle and by the high rotation frequency of 3 kHz and clockwise counterclockwise rotation of the antenna to compensate running time errors highest precision of the system is achieved The indicating and operating system DCU represents bearing signals and allows operating and controlling of the bearing antenna Additionally external devices can be connected Speaker audio line out PTT push to talk Also data in and export is possible by various interfaces including remote control over IP and IP based audio transmission The DF system is suitable for stationary surveillance of coastal ship traffic as well as for mobile use on big vessels AU is watertight protection IP 67 and may be used under extreme and rough conditions Optionally a lightning protection rod is available for costal VTS installations Caution The DF system RT 800 is not licensed for primary navigation It may support navigation if necessary but navigation of a vessel may not be based under any circumstances on data obtained by the DF system Page 8 of 74 RHOTHETA User Manual RT 800 2 Short Description 2 1 Front View DCU 3 D 29 9 SZ EES Q Fig 1 Front View DCU Pos Designation rn Sep Control Panel Display of bearing data local control of the direction finder Audio Speaker for received signal vol
13. the audio frequency which triggers an alarm That means if a signal should trigger an alarm the audio frequency of the signal must be greater than Frequency Low and less than Frequency High 5 3 9 2 Decoding Time Decoding Time determines the minimum duration of an audio signal within the specified frequency range that should trigger an alarm For example given the parameters Decoding Time 800ms Frequ High 8 5 Hz Frequ Low 25 Hz the signal must remain at least 800 milliseconds continuously with its frequency between 725 Hz and 875 Hz to start an alarm 5 3 10 CPSS Dialog Time This setting could be used to select the duration until the dialogue Cospas Sarsat Decoding closes automatically Page 53 of 74 RHOTHETA User Manual RT 800 5 4 Menu Service Internal settings and service dialogues password protected Menu Setup Fig 42 Menu Service table 5 4 1 Monitor The Setup Menu item Service Monitor is to be opened only for service and maintenance operation Changes of settings are reserved to the firm RHOTHETA or instructed persons 5 4 2 Password If the system has been unlocked by the default password during first installation see 5 5 create and change your personal password now Only one password can be stored e Press function key F4 and select option Passwort Change A data input field will open e Putin now your password by the means of the numeric keys or the editing fields The input is lim
14. the noise level to which the Autosquelch is set to For example if the noise level is at 27 on a specific channel and the SNR Value is adjusted to 7 then the Autosquelch level is set to 34 Page 24 of 74 RHOTHETA User Manual RT 800 Because the channels may be set to frequencies of different bands with different noise levels the SNR Value can be adjusted for every channel seperately To activate the Fast Channel Scan press the key F1 jj The label of the soft key changes to AN and shows that the Fast Channel Scan was activated If the Fast Marine Scan was already activated it is deactivated because only one scan mode could be active at a time By pressing Ok all changes in the channel list are stored and the respective scan mode is activated or stopped Alarm Only Decoding BeepTone If the scan mode Fast Channel Scan was invoked an additional filter for the decoding of audio signals could be activiated by pressing the key F4 ISB The Fast Channel Scan then reacts only to signals with a distinct preconfigured audio frequency and issues an alarm immediately if such a signal was recognized This can be used to search NOVATECH Radio Beacons which transmit a two second signal with 800Hz audio tone every six seconds The parameters of the audio signal upper and lower audio frequency as well as minimum required duration of the signal can be configured in the System Menu see chapter 5 3 9 If a signal was fo
15. to 359 e g 15 345 5 3 5 PS Ram An external compass connected the bearing value determination is done by a special Improved compensating procedure For a compass of minor quality e g heavy and quick variations it may be necessary to switch off the compass compensation Select xl Compass Compens Off 5 3 6 Monitoring In the default setting Kl Off Blocked it is not possible to deactivate the monitoring operation see 4 4 Thus surveillance of the emergency frequencies cannot be switched off by mistake If the monitoring operation is to be switched off manually the setting O Off Blocked has to be deactivated The DF systems monitoring scanning function can now be switched on off in the corresponding dialogue window see 4 4 5 3 7 SIN Ratio AutoSQL This value controls the Auto Squelch It determines how many level points the squelch marker is set above the noise level If the value is 6 for example the squelch marker is adjusted always 6 level points above the noise level Default value is 6 5 3 8 AU Calibration This setting can disable the internal calibration values of the AU Change this setting only in special cases or if you are told by RHOTHETA Elektronik GmbH 5 3 9 BeepTone Decoding This parameters control the behaviour of the Alarm Only Decoding BeepTone option of Fast Channel Scan 5 3 9 1 Frequency High Frequency Low With Frequency High Frequency Low you specify the range of
16. 00 is equipped with only one receiver that means only one frequency can be received at a time Signals on other specified frequencies channels cannot be beared at the same time For simultaneous surveillance of the traditional emergency frequencies and any other frequencies channels there is the function monitoring Thus the surveillance of up to four different frequencies monitoring frequencies within the specified frequency bands is possible When the monitoring function is activated the DF system switches alternating from the main bearing frequency to the selected surveilling scanning frequencies The actual frequency is displayed highlighted in white color Monitoring Off Monitoring On Monitoring On active frequency active frequency Main frequency Channel 02 Ship Monitoring frequency 121 500 MHz Ch 02 Ship Ch 02 Ship VHF Marineband VHF harineband Ch 02 Ship VHF harineband Monitoring 121 5848 hHz donitoring donitoring Off 121 568 MHz 245 688 HHZ 243 506 MHZ r OFF gt 245 666 MHZ 2453 566 MH t Off Fig 10 Example active monitoring frequency If a signal is received during monitoring the reading of the corresponding frequency is red colored and the bearing value is indicated Even after the end of the signal this frequency channel will be held for 10 sec Hold Time Ch 02 Ship Currently active frequency dd ed Monitoring 121 568 MHz d 45 000 MHz Monitoring frequencies Bearing of the sign
17. 2 The frequency input field is activated Additionally the display shows a list of the permissible frequency ranges Direct Frequency Input Permissible frequency ranges of the system Frequency input field VHF Airband Ship Fig 22 Input of main bearing frequency Put in desired frequency by the means of the keyboard or directly using the arrow keys SE Inreases frequency by 5 kHz 8 33 kHz 25 kHz O decreases frequency by 5 kHz 8 33 kHz 25 kHz 3 moves cursor to the left for one digit in order to overwrite previous input Store adjustment using key Ok Device returns into bearing mode working with adjusted frequency Page 32 of 74 RHOTHETA User Manual RT 800 4 2 2 Setting a Main Operating Channel 56 Channels are available in the VHF marine band Channel 0 to 28 and channel 60 to 88 Open dialogue window using key MIES Select with F3 or F4 The channel input field is activated Additionally the display shows a list of all permissible channels Direct Channel Input Permissible channels of the system Channel input field HF Marineband F Ship Selection of point of reference for duplex channels requency Coast Fig 23 Input of a main bearing channel Put in desired channel directly by the means of the keyboard or by using the arrow keys Increases channel for one step O Decreases channel for one step 3 Moves cursor to the left for one digit in order to overwrite previous inpu
18. 7 63 Hz Current 13 0 4A consumption Power consumption Nominal 30W 230V Audio out Internal speaker 4 W Line out adjustable from 100 mV pp to 2000 mV pp Interfaces Ethernet Interface for NMEA remote control TCP Ethernet Interface for IP Audio output e g Internet Radio RTP RawUDP RawTCP SIP Icecast Shoutcast External GPS RS422 optional Headphone only used for setup of IP Audio NMEA In Output RS232 only for local test purposes Testport RS232 optional customer specific Alarm relay output 1 0 A 30 V DC 0 3 A 125 V AC PTT input for self bearing suppression Squelch output for external audio control Page 66 of 74 RHOTHETA User Manual RT 800 8 2 Mechanical Characteristics 8 2 1 DCU Dimensions built in version Measuring units mm millimeters 482 60 Fig 46 RT 800 mechanical dimensions built in version Page 67 of 74 257 50 RHOTHETA User Manual RT 800 8 2 2 DCU Dimensions tabletop version Measuring units mm millimeters 146 15 112 55 290 91 Fig 47 RT 800 mechanical dimensions tabletop version 8 2 3 DCU Data Weight Approx 5900 g Permitted operating temperature 20 C to 60 C Permitted storage temperature 30 C to 80 C Page 68 of 74 RHOTHETA User Manual RT 800 8 2 4 Antenna Unit Dimensions Measuring units mm millimeters 201 157 333 397
19. D it is displayed here e GPS Position GPS Position latitude and longitude if contained in data signal of transmitter Precision depending on protocol between 15 min of arc and 4 sec of arc Page 29 of 74 RHOTHETA User Manual RT 800 4 Operating and Adjusting Common operating functions of the RT 800 are done with help of the keys placed around the display In normal bearing mode the functions will be called up directly by the keys opening the corresponding dialogue window Volume Squelch Memory Band Channel Freq Fig 20 Operating and adjusting Rarely used adjustments or adjustments which are only done once during installation will be done in the menu setup see chapter 5 Parameter setting is done generally by using the arrow keys the number keys or the software controlled function keys F1 to F5 New changed parameters will be accepted with key Ok and be stored permanently in the system for further operation even after switching off and on of the device Key ES will close the dialogue window without storing the changed parameters lf no adjustments are made in an opened dialogue window for more than 10 minutes the system will close the window automatically and return into the bearing display mode While adjusting the bearing operation is still running in the background If receiving an alarm signal a warning tone will sound and the last bearing value can be called up with function Repea
20. G LINMEA HEHDG LINMEA xxHDG Interface Fig 40 Menu Interface table default settings 5 2 1 NMEA Std Sentence NMEA Std Sentence controls which standard sentence is sent when Autotalk is activated e PRHO DFSTD The RHOTHETA standard bearing sentence PRHO DFSTD is sent e PRHO DFVTS The VTS Standard sentence PRHO DFVTS of RHOTHETA is sent e DFBRG DFBRG standard sentence is sent 5 2 2 NMEA Mode In NMEA mode the NMEA data output of the DF system is selected e Only on Request Data output on request only e Autotalk sec ms Continuous data output of standard DF data in fixed intervals For further information refer to RT 500 M amp RT 800 NMEA Protocol Description Page 50 of 74 RHOTHETA User Manual RT 800 5 2 3 NMEA baud rate NMEA baud rate will set velocity of data transmission of serial NMEA interface input and output For further information refer to RT 500 M amp RT 800 NMEA Protocol Description 5 2 4 Compass Source An external compass may be connected to the systems NMEA interface Set here data format of connected compass No external compass connected select menu item amp l No ext Compass Off Select corresponding data format of external compass here For further information refer to RT 500 M amp RT 800 NMEA Protocol Description Page 51 of 74 RHOTHETA User Manual RT 800 5 3 Menu System Internal system settings password protected Caution
21. Manual RT 800 List of figures 8 roi Views DOC U ann RR een eigen 9 2 FEONL VIEW BULLONS and DIS DIA uu u uuu musu Ee 10 EENEG enesesse eE EE 12 Ae 15 S Sla Tale Beie E e EEN 16 6 Digital display of bearing value u uuu uuu uuu u u 2 2 s y ssassyasskasspanskasepanakasstanaq 17 7 Last Deanng me e En e een rn 17 GNIS se Tech E o EE 18 9 IVIONITONING ee te as 19 10 Example active monitoring frequency 21 11 Monitoring operation see eee eee eee eee 21 12 Example Timing ormal MOnitoring u uu uuu kuno a kaha ea 22 t3 Example 11mINd E05P35 Salsal nu 22 14 Example Timing Standby Mode GA annannannennannannnnnnnnnnnrnrnrnrrnrnnnsnrnrrnrrnrrnernenne gt 23 15 Example Timing Standby Mode DUR 23 16 Scan Dialogue u uu e E E 24 IE DAR DIA Le Er are 27 18 Display of Cospas Sarsat Scanning Mode 27 19 Cospas Sarsat data decoding r 29 20 Operating and le L yll EE 30 Aen Ee AE E En elt e A EE 31 22 Input of main bearing frequency r 32 23 Dp tor ramman Dearing ChanNNe EE 33 24 Adjusiment QUE CEE A A A A 34 25 Dialogue window Squelch level adjustment 35 20 AWO Sde A Marker uuu uu een 37 27 Dialogue window Monitoring seitngs 38 28 Activation ot Standby operation a 39 29 Dialogue WINGOW DIMMING ass 40 E
22. Menu Setup example Interface NMEA Standard Sentence e Open dialogue window Menu Setup using key Menu e Select corresponding Setup Menu using function keys F1 to F5 Function keys will open a list of further submenu items e Select submenu to be adjusted by using arrow keys EM Selected field is highlighted in bright green e Select option from listing of possible settings using the arrow keys EM GO confirm the selection using key Ok LO option not active xl option active Or putin desired value by using the numeric keys and confirm Ok Page 48 of 74 RHOTHETA User Manual RT 800 5 1 Menu General Editable freely uncritical settings Menu Setup Fig 39 Menu General table default settings 5 1 1 Audio As a standard there is a short beep when pressing a key If the beep is to be suppressed deactivate setting Beeper Key Pressing Page 49 of 74 RHOTHETA User Manual RT 800 5 2 Menu Interface Settings concerning data interfaces and functions can be made in menu Interface password protected Menu Setup PRHO DFSTD NMEA Std Sentence O PRHO DFVTS O DFBRG LI Only On Request Autotalk 2 sec NMEA mode O Autotalk 1 sec Autotalk 500 ms Autotalk 250 ms C 1200 Baud 4800 Baud C 9600 Baud NMEA baud rate O 19200 Baud 38400 Baud L 57600 Baud C 115200 Baud No ext Compass SE LINMEA HCHDT LINMEA HEHDT Compass source CINMEA xxHDT LINMEA HCHD
23. North Bearing relative to geographic North After end of reception the last bearing value will be displayed flashing for ca 5 sec Then the bearing display will vanish and the field of the digital bearing display will show the passed time and the frequency of the last received bearing signal Last Bearing Last Bearing time since last bearing Time 43 52 frequency of last bearing 121 566 MHz Fig 7 Last bearing time frequency After pressing key Repeat see 3 1 3 the last bearing value will be displayed again for three seconds Page 17 of 74 RHOTHETA User Manual RT 800 3 1 1 Instruction Fields flags errors and warnings When bearing an emergency signal and additional functions are activated or operating parameters are out of their specified limits the system will inform you by the means of Instruction fields flags Speaker audio output is currently muted 42 Self bearing suppression SBS active 61 An emergency signal has been detected Source signal frequency and time since detection will be displayed The key Bl will deactivate the warning signal and the alarm relay output 19 After that if receiving no more emergency signal for more than a minute the alarm flag will be turned off automatically The system will indicate a warning if the operating parameters are close to the tolerable limits or if external signals are not available anymore The system s basic functions are not affected yet but pr
24. RHO a Konformit tserkl rung Germany Elektronik GmbH H 7 Tel 49 8841 4879 0 E Mail email rhotheta de RT 800 Fax 49 8841 4879 15 Internet www rhotheta de Rev 2 00 Declaration of Conformity Konformit tserkl rung Type of Product RT 800 Ger tetyp RT 800 Components of Product RT 800 Antenna Unit AU RT 800 Display Control Unit DCU Komponenten des Produktes Product Designation Precision 4 Band Direction Finder Bestimmungsgem e Verwendung 4 Band Pr zisions Peilger t We RHOTHETA Elektronik GmbH Dr Ingeborg Haeckel Str 2 82418 Murnau Germany declare under our sole responsibility that the product and product family identified above is in conformity with the essential requirements and other relevant requirements of e Directive 1999 5 EC on radio equipment and telecommunications terminal equipment relevant for RT 800 AU e Directive 2004 108 EC relating to electromagnetic compatibility relevant for RT 800 DCU e Directive 2006 95 EC relating to electrical equipment designed for use within certain voltage limits relevant for RT 800 DCU e Directive 2011 65 EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment relevant for RT 800 AU and RT 800 DCU Wir die RHOTHETA Elektronik GmbH Dr Ingeborg Haeckel Str 2 82418 Murnau Deutschland erkl ren hiermit in alleiniger Verantwortung dass das oben genannte Produkt und die Produktfamilie de
25. RR ue E le Se le lie EE 41 91 Manta Kelt re UL E 41 32 Dialogue WINGOW VOIUME uuu u aaa aa a a aa 42 33 MUNG NE SDCAK GF uu uy 222 are 42 34 Speaker VOLUME au ad 43 35 Speaker functional test 43 36 Dialogue window Memory 7 Band au tt te ai ia 44 OE VEXCIMOUT WIN COW sii a diria 45 38 Operating Menu Setup example Interface NMEA Standard Sentence 48 39 Menu General table default settings a 49 40 Menu Interface table default settings a 50 41 Menu System table default settings 52 42 Menu Service Table o a y wa eee o e yaaa yka nayasa 54 43 Overview of Interfaces a a ar aarrssassrsa 56 44 Connecting 6abl amp eDOUSSAU nee 57 45 Example for optimal DF antenna position 64 46 RT 800 mechanical dimensions built in version 67 47 RT 800 mechanical dimensions tabletop version 68 48 Antenna Unit mechanical dimensions 69 49 Antenna Unit mast flange mechanical dimensions 70 Page 7 of 74 RHOTHETA User Manual RT 800 1 Use and Characteristics The DF system RT 800 combines a com
26. Remarks 00 AU Antenna Un gt GO ay yg CPISS Cospas Sarsat T f J I DCU Display amp Control Unit DF Direction finder Deg Degree 60 0 ELT Emergency Locator Transmitter GND A GPS Global Positoning System ID Identification U I lngress Protection rating si PF LAN LocalArea Network LCD Liquid Crystal Display OC LED Light Emitting Diode U MOB Man Over Board E MSSI Maritime Mobile Service Identity Ship s Ident Mo NF Audio Frequency o L NMEA 0183 National Marine Electronics Association Interface and data telegram standard PLB Personal Locator Beacon e PSRAM Averaging Random Access Memory PTT SBS______Push To Talk Self Bearing Suppression 7 U f f RAM Ramdom Access Memory C C Rx Receiver nsnsi s ss s s oo SN _ Signalto Noise O O O SAR SearchAndRescue e SNR SignaltoNoise Raetio U SOL A TFT Thin Film Transistor see also LCD 2 TX Tramsmitter Y Y Y VDC Ml of Direct Current o Guau VTS Vessel Traffic Service Page 73 of 74 RHOTHETA User Manual RT 800 9 5 CE Declaration of Conformity RHOTHETA Elektronik GmbH Declaration of Conformity
27. User Manual RT 800 Wideband Precision Direction Finder RHOTHETA Elektronik GmbH RHOTHETA User Manual RT 800 Edited by RHOTHETA Elektronik GmbH Kemmelpark Dr Ingeborg Haeckel Str 2 82418 Murnau Germany Tel 49 8841 4879 0 Fax 49 8841 4879 15 Internet www rhotheta de E Mail email rhotheta de Copyright RHOTHETA Elektronik GmbH All rights reserved Issue 2013 05 19 Rev 1 08 Display Control Unit Software Rev 2 00 Document ID 12 9 1 0003 3 1 61 Note The manufacturer reserve the right to make modifications at any time and without previous information of the here described product Page 2 of 74 RHOTHETA User Manual RT 800 Page 3 of 74 RHOTHETA User Manual RT 800 Content Use and e ee EE d 8 SNOFLDESCHD HONG 9 241 Front View LR Le E 9 22 FONE yiew Buttons and Display u u ae ee ie ee 10 23 Bearing Display Main Page ses a eu 12 2 4 REAL VIEW Seen een meer 15 E E Le EE 16 HA e atelier 16 3 1 1 Instruction Fields flags errors and wammgs ar nennen 18 912 Aam FUNCUOM as ee Di Sasu tu au mu ahus 19 3 13 951 eTel REPEAT u urnu e DA O OS 19 RENE Leide E EE 19 3 1 9 Funcion Channel E ee ma Sus na S ee 20 DRO cal 61901 AL ae a al a ee 20 S ole o a E E 20 3 2 MONO ng Opera RE 21 3 2 1 Timing of normal Monitoring Operation sees eee ee eee ee eee 22 3 2 2 Timing Monitoring with selected Cospas Sarsat Main Frequency eee ee ee ee e 22 3 2 3 Monitoring operation with f
28. a us ee arusta cuma EE 56 8 2 Device S ein een ee es o sumi Sawa na amapas nasa 57 6 2 1 Antenna Unit Port Connecting Cable DCU AUT sse eee eee 57 022 GPS RS422 Ola er rel ee re 58 S T n C T uuu een er er 58 6 3 Remote Control and IP Audio Encoder borts sees 59 DA POWER UI a 60 65 Service amp Maintenance Polls alas en ee ee ee 61 6 5 1 Power Supply and Optional Connections 2 2 2222 61 8 5 2 NMEA Ee ebe 62 8 9 3 TOS ROO AM ebe 63 Guideline for optimal DF antenna position 64 Technical D ta SING e e 65 38 1 lt EleGirical CharacteriSuGs ee 65 Page 5 of 74 RHOTHETA User Manual RT 800 8 2 Mechanical Eet Eeer bs 67 8 2 1 DCU Dimensions built in version 67 8 2 2 DCU Dimensions tabletop version 68 823 DCU 61 E 68 8 24 Antenna VAIL Dimensions ur u ale 69 8 2 9 Antenna Unit Mast Tae u uuu um au muy Qu Sangu Dhuha ale 70 8 2 6 Technical Data Antenna Un ao 70 FRO DCN GU iia 71 9 1 eege EE 71 d A AN e EE 71 9 3 Frequencies of channels on maritime band 72 G NEE e lee ele ii A E 73 95 CE Declaration of E eine nu le ua 74 Page 6 of 74 Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig RHOTHETA User
29. age 26 of 74 RHOTHETA User Manual RT 800 3 5 SAR Dialogue The SAR Dialogue allows direct access to several emergency frequencies as well as the possibility to scan all Cospas Sarsat frequencies Furthermore you can start the decoding of Cospas Sarsat signals SAR COSPAS SARSAT Fast Scan of all 255 Channel Groups Cospas Sarsat wer Frequencies Ch ABC 3B5 B22 B268 ICPR SS Scan all Chan Current selection DEF 466 031 637 COCRYSS Last GH 466 0460 643 IJK 466 046 652 LhH 466 055 661 UPD 466 064 676 Cospas Sarsat Channel Groups 466 6417 l Frequency found at z last Cospas Sarsat 2 121 560 MHz Scan 2 121 650 MHz 21243 nad lt E mergency frequencies for direct access AS 406 075 576 Function Key to display the Cospas Sarsat Decoding dialogue Function Keys for direct access Fig 17 SAR Dialogue If one of the dialogue s frequencies is already selected as main frequency it is marked at dialogue startup While the dialogue is active the selection can be made with the arrow keys Q0 Go If the Ok key is pressed the selected frequency becomes the new main frequency and the dialogue is closed Function Scan CP SS By selecting this function a fast Scan Mode is started It scans all Cospas Sarsat channels for signals The Scan Mode is displayed in the main window 406 SCAN CPYsarsat Band Monitoring OTT Fig 18
30. al VV M Bearing J Min Fig 11 Monitoring operation Page 21 of 74 RHOTHETA User Manual RT 800 In order to interrupt the actual reception press key ES the system is continuing with next monitoring frequency Active reception will be interrupted after 30 sec for a short moment in order to examine the other monitoring frequencies safety function If this feature is not desired press key The active receiving frequency will be overtaken as the main frequency Thus interruptions are shortened considerably for the main frequency is monitored now with highest priority see also 3 2 1 3 2 1 Timing of normal Monitoring Operation Cycle 20 sec The main frequency F mes here channel 16 is monitored with nie 121 500 ch 16 Monitor Frq 1 Ch 16 Monitor Frq 2 Ch 16 Monitor Frq 3 highest priority The duration of the monitoring cycles may be extended if receiving signals on the monitoring frequencies also by misadjustment of the squelch level Fig 12 Example Timing normal monitoring 3 2 2 Timing Monitoring with selected Cospas Sarsat Main Frequency Cycle 100 sec The main frequency adjusted to a Cospas Sarsat Fequency bag the timing cycle will be 121 500 Monitor1 Monitor2 Monitor3 406 Scan changed automatically in order to catch the short pulse duration of pulse ca 400 msec every 50 sec Additionally the Cospas Sarsat Scanning is activated Fig
31. amp Maintenance Ports 6 5 1 Power Supply and Optional Connections Contact Pin Signal s 12 V to 30 VDC No connections required internally connected Ka GND Ground Permanen llei i No connections required internally connected Operation PTT SBS Optional input in order to suppress self bearing When connecting input PTT SBS Self Bearing Suspression to Ground self bearing is suppressed Optional output for audio connection When receiving a signal this pin is connected to ground by the means of an Open Collector output Optional alarm contact mechanical relay as NOC Normal Open Contact max 1 A at 30 Vpc resp max 0 3 A at 125 Vac No Connection required because this ports are connected to the internal speaker Audio Line Out Connection not recommended because this port is connected to the IP Audio Encoder 5 Audio output connected to ground with fixed level Adjustable in menu from 200 mVss at 10 to max 2 Vss at 99 Page 61 of 74 Alarm Relay RHOTHETA User Manual RT 800 6 5 2 NMEA Bus RS 232 This is an additional NMEA interface of the DCU It is recommended to use it only for local tests because commands sent to the DCU may be interfere with commands sent through NMEA Ethernet interface NMEA Bus RS232 Contact Pin Signal RS232 Tx Output of serial data with RS232 level 3 RS232RK Input of serial data with RS232 level 5 em GND level for RS232 connection Pa
32. at all time in standby mode Fast Marine Ship Band Scan within approx 3 sec Fast scan without gap within the range of ship channels 01 88 156 050 157 425 MHz Detection of each signal also between the channel grid Fast Channel Scan within max 2 sec Fast scan of up to eight freely selectable frequencies channels Only with unlocked option Fast Channel Scan Mode Undisturbed wave field and sufficient field strength supposed Measuring by changing the angle of incidence the bearing antenna rotates on a revolving table in order to eliminate influences of environment to the bearing result Page 65 of 74 RHOTHETA User Manual RT 800 Signal filtering Optional all emergency frequencies can be filtered for ELT modulation false alarms disabled Cospas Sarsat Reception and analysis of Cospas Sarsat data signal analysis 112 or 144 bit 400 baud biphase L phase modulated with Bose Chaudhuri Hocquenghem error correction code specified according Cospas Sarsat C S T 001 October 1999 Indication of data content mode country GPS coordinates Bearable A3E F3E A2X PLB modulation bearing largely independent of modulation modulation Keyboard Foil on the front with integrated keyboard matrix and EL background illumination TFT Graphic 320 x 240 pixel with max brightness of approx 450 cd m Display continuously adjustable or automatic control Operating voltage 85 264 Volts 4
33. channel At Fast Marine Scan the scanning process starts after ten seconds If the key Ok is pressed during this time the scanning mode is deactivated and the current frequency is the new main frequency In case that an unwanted signal is found the scanning process can be proceeded immediately by pressing the ES button If an interesting signal is found and the direction finder should bear this frequency permanently the scanning process can be cancelled in the Scan Dialogue by deactivating the scan mode CAUTION e In case that Monitoring is active before starting the scan Monitoring is interrupted while the scan is active e fa scan mode is not supported by the connected AU the respective scan mode can not be selected in the dialog e fa signal was found during scanning process which lasts longer than 30 seconds the scan process is continued after 30 seconds with the next channel frequency This is done to ensure that other signals are found as well Remark If there are interferences on the frequency band which are above the squelch level scanning stops as well at these interferences They are interpreted as signals This may be avoided by adjusting the squelch level manually using the and buttons in Fast Marine Scan mode or adjusting the SNR value in Fast Channel Scan mode Because of this it may be possible that weak signals are not received any more For correct squelch adjustment read also chapter 4 3 on page 34 P
34. cy channel Proceed as described in 4 2 1 frequency or in 4 2 2 channel e The new frequency channel will be taken over in the corresponding list and will be displayed Option Edit allows adding of text to the new frequency channel Select option Recall if the frequency channel is to be used as present operating frequency channel Page 47 of 74 RHOTHETA User Manual RT 800 5 Menu Setup All system settings exceeding common operation of the DF system interface settings offset setting will be made in the Menu Setup Caution Incorrect settings in the Menu setup may lead to considerable malfunctions of the DF system RT 800 Therefore sensitive parameters concerning the bearing operation are password protected against non authorized alterations Alterations of settings which require password release are to be made only by instructed persons Menu Setup Information on software revision and serial number of AU and DCU Selected option Ant Offset PSRamComp Monitoring SHA AutSOL AU Monitor AU Calib Remote IDE HMEA Beeplone Password Compass CPSSO1LgTim Special Unlocked Ae Setup Menu unlocked Menu Menu Menu Henu Enter Da _ Unlocking menu items General Interface System Service E Setup Menu Service password protected Setup Menu System password protected Setup Menu Interface password protected Setup Menu General free admission for uncritical settings Fig 38 Operating
35. e Change squelch level of selected frequency Increases squelch level O Decreases squelch level F1 As Adjust Adapts automatically squelch level to noise level once z Activates the Auto Squelch Function not available at monitoring _ frequencies 121 500 and 243 000 MHz F3 Switches off squelch level of selected frequency e Store adjustment using key Ok and return to bearing display 4 3 3 Automatic Adjustment of Squelch Levels Please notice hints described in previous chapter when adjusting squelch level see 4 3 1 e Open dialogue window using key ET When opening dialogue window the system is scanning the signal levels of the selected surveilling frequencies channels and is showing the presently received signal levels and the previously selected squelch levels on the display screen e Function keys F4 or F5 AUN are now activating the automatic squelch level adjustment of all active frequencies The squelch levels are now being optimized automatically for all active frequencies main bearing frequency emergency frequencies monitoring frequencies A manual readjustment might be necessary see 4 3 2 e Store adjustment using key Ok and return to bearing display Page 36 of 74 RHOTHETA User Manual RT 800 4 3 4 Automatic Squelch For bearing very short signals the correct adjustment of the squelch level is very important Because noise level varies by time and location the squelch level must be adjusted continuosly The
36. e Select option using arrow keys QO e Select desired frequency band using function keys F1 to F4 The selected list is shown on the display e Select desired frequency channel using arrow keys QO The selected frequency channel is marked with a green bar e Key Ok will confirm the selection The text input window is opening see Fig The frequency channel can now be provided with a name or comment The text is limited to 35 digits Text Input Frequency channel to be edited TRAINING FREQ_ Text input field ABCDEFGHIJKLM eut NoPIQRS TUVWXYZ of Confirming end of input FIDE Space m A A Backspacing one position cancelling previous digit Inserting space Selected letter to be edited Fig 37 Text input window e Putin desired text by the means of the text input window o Select desired letter using the four arrow keys The selected letter digit is marked with a yellow frame Pressing key Ok overtakes the marked letter digit Numbers can be put in directly using the numeric keys In order to insert a space mark select field SEI In order to cancel a letter digit select field o In order to close the text input select field HAM and confirm using key Ok The text input window will be closed and the text is stored in the list CO OO O Page 45 of 74 RHOTHETA User Manual RT 800 4 8 3 Move a Frequency Channel within a Storage List By the means of the function Move frequencies channels can be sorted within
37. e of 10 Note In order to observe acoustically the setting of the speakers volume when receiving no signal we recommend to activate the functional test of the speaker at first see chapter 4 7 3 and to use the received noise signal as a setting reference external Speaker e Open dialogue window using key e Set volume using arrow keys QO Quick change of volume can be achieved by function keys F2 Min F3 l and F4 Max The volume is set to 10 low 50 medium and 100 maximum volume e Key Ok will store the setting Fig 34 Speaker volume 4 7 3 Functional Test of Speaker In order test volume setting and function of the speaker the test function can be activated When activating the test function the squelch is deactivated and the received noise signal becomes audible e Open dialogue window by using key e Activate test function using key gt K On The noise signal kann now be heared if the speaker is working e In order to switch off the test function again use key and select option gt D Off e Close dialogue window using key Ok and return to the bearing display Fig 35 Speaker functional test Page 43 of 74 RHOTHETA User Manual RT 800 4 8 Activating Memory Band function In order to call up quickly frequently used frequencies channels training frequencies etc the DF system can store and document these frequencies For each of the four frequency bands an individual list may be provid
38. ed Stored frequencies channels may be provided with own designations and comments their sequence and position may be changed within the list and they can be deleted if neccessary International valid emergency frequencies are already stored in the corresponding frequency band They are on first position within the frequency band lists and cannot be moved or cancelled Calling up frequency channel of list Editing frequency channel of list Moving frequency channel in list Deleteing frequency channel from list Storing of a new frequency channel in list Ok MEM YHF Marineband Emergency frequency in frequency band here VHF marine band BREMERHAFEN PORT u PILOTS Highlighted channel for editing WATER POLICE Active frequency band Fig 36 Dialogue window Memory Band 4 8 1 Recall Frequency Channel from Storage List e Open dialogue window using key e Select option 3 This option is already preselected when opening the dialogue window e Select corresponding frequency band using function keys F1 to F4 The display will show your list e Select desired frequency channel using arrow keys EM The selected frequency channel is marked with a green bar e Key Ok will confirm your selection The device returns to bearing mode and work on the set frequencies channels Page 44 of 74 RHOTHETA User Manual RT 800 4 8 2 Edit Text of Frequency Channel in Storage List e Open dialogue window using key
39. ency coast station No 0 156 000 MHz 160 600 MHz 1 156 050 MHz 160 650 MHz 2 156 100 MHz 160 700 MHz 3 156 150 MHz 160 750 MHz 4 156 200 MHz 160 800 MHz 5 156 250 MHz 160 850 MHz 6 156 300 MHz 160 900 MHz 7 156 350 MHz 160 950 MHz 8 156 400 MHz 9 156 450 MHz 10 156 500 MHz 11 156 550 MHz 12 156 600 MHz 13 156 650 MHz 156 700 MHz 156 750 MHz 156 800 MHz 156 850 MHz 156 900 MHz 161 500 MHz 156 950 MHz 161 550 MHz 157 000 MHz 161 600 MHz 157 050 MHz 161 650 MHz 157 100 MHz 161 700 MHz 157 150 MHz 161 750 MHz 157 200 MHz 161 800 MHz 157 250 MHz 161 850 MHz 157 300 MHz 161 900 MHz 157 350 MHz 161 950 MHz 157 400 MHz 162 000 MHz 60 156 025 MHz 160 625 MHz 61 156 075 MHz 160 675 MHz 62 156 125 MHz 160 725 MHz 63 156 175 MHz 160 775 MHz 64 156 225 MHz 160 825 MHz 156 275 MHz 160 875 MHz 156 325 MHz 160 925 MHz 156 375 MHz 156 425 MHz 156 475 MHz 156 525 MHz 156 575 MHz 156 625 MHz 156 675 MHz 156 725 MHz 156 775 MHz 156 825 MHz 156 875 MHz 156 925 MHz 161 525 MHz 156 975 MHz 157 025 MHz 157 075 MHz 161 575 MHz 161 625 MHz 161 675 MHz 157 125 MHz 161 725 MHz 157 175 MHz 157 225 MHz 157 275 MHz 161 775 MHz 161 825 MHz 161 875 MHz 157 325 MHz 161 925 MHz 157 375 MHz 157 425 MHz Page 72 of 74 161 975 MHz 162 025 MHz RHOTHETA User Manual RT 800 9 4 List of abbreviation Abbreviation Meaning
40. er active scanning frequency as main bearing frequency at signal reception only a The squelch level of the main bearing frequency channel may be adjusted directly by QO keys only possible if main frequency active deactivated 34 during Cospas Sarsat Scan No signal received signal level lt squelch level Sqelch threshold of current frequency pl Signal is received and beared signal level gt squelch chamnel m level 34 No signal received Auto Squelch active Display of signal level of current frequency channel Bar indicator of signal level e coo gt no reception 16 color signal reception 15 Digital signal level indicator Digital indication of signal level of active bearing 16 frequency channel 16 Bearing indicator Graphic display of bearing value relative to longitudinal 16 axis of antenna Spread of bearing Maximum deviation of unaveraged single bearing values 16 Without compass data Display of relative bearing value in 360 display If antenna mounted correctly the 0 360 display value corresponds to North direction If compass information available graphic display of P relative bearing value within compass card with display of the four cardinal points Compass card Is always in 12 o clock position and displays present 19 Heading Pointer course if compass information available only used for 16 mobile applications Digital bearing indicator Display of bearing value
41. erwards Additionally the ID only ON OFF LED is blinking Fig 28 Activation of Standby operation Deactivating Standby operation e Press any key for re activating the display e If an alarm is recognized during standby operation the system will activate the display automatically The alarm flag will indicate frequency and duration since release of alarm e If an operating error is recognized during standby operation the display will be activated An error message will be put out Page 39 of 74 RHOTHETA User Manual RT 800 4 6 Setting Brightness Dimming The brightness of the display elements and key illumination may be adapted to surrounding lighting conditions TFT displays LEDs An integrated photometer is monitoring surrounding brightness and adapts automatically illumination of display and operating elements to ligthing conditions Automatic Mode Ok LITT IT Tre Eau Light sensor display photometer TFT Display Led s adjust Dimming active Dimming h Input field brightness lm C orf Auto I aile o Auto matic 5 EE matic Mode selection for key illumination Maximum brightness Medium brightness Minimum brightness Mode selection Fig 29 Dialogue window Dimming In order to enhance lifetime of the luminous foils and the TFT display we recommend to run the DF system in its basic setting Automatic Mode see chapter 4 6 1 In case of insufficient automatically set illumination
42. eventive measures are recommended An error message will be displayed if one or more operating parameters are out of admitted limits or if a malfunction was recognized In this case the system is not working Key Bf deactivates the acoustic warning signal Fig 8 Instruction fields Page 18 of 74 RHOTHETA User Manual RT 800 3 1 2 Alarm Function During signal reception signal level above squelch level the signal is analysed in the background if its a modulated emergency signal These emergency signals ELT Emergency Locator Transmitter PLB EPIRB are modulated with a typical repeating and distinct sweeping tone Once recognized as an emergency signal alert will be activated A flashing alarm flag indicates the signals frequency it s type and duration since first reception active frequency WHF Marineband Monitoring 121 588 WHz A Ch 02 Ship e bearing of the signal SE s alarm flag if emergency we ER signal was recognized W x _True Bearing A deactivates acoustic warning Fig 9 Monitoring operation At the same time a special internal warning tone informs you about the reception of the emergency signal The alert will last even after end of signal until confirmation deactivation by the flashing function key warning signal mute After that if no emergency signal is received for more than one minute on the recognized scanning frequency the alarm flag will be turned off automatically Note The
43. ge 55 of 74 RHOTHETA User Manual RT 800 6 Interfaces 6 1 Overview ur x Power Supply udio Encoder 85 264 V 1 3 0 4 A 47 63 Hz Power F se F1 F2 IEC 60127 TSA 250V 5x20mrh slow Channel 1 Devices Service amp Maintenance Channel 2 Remote Ctrl Remote Ctrl GPS RS422 Test Program RS232 AUDIO Ethernet phones Fig 43 Overview of Interfaces 1 Power Supply Power supply connector with replacable fuse IP Audio Encoder Channel 1 Audio Output for DF and ecoder cofiguration Ethernet ports for remote control NMEA Ethernet o pi nana and IP Audio AUDIO Ethernet Connector ports for AU antenna unit and optional A Devices GPS connector for the option UTC Time Base fuse for AU GPS power supply os Designation meann Ste Service amp Maintenance Ports for optional connections SW Update and local NMEA Output and IP Audio AUDIO Ethernet Option 2 Channel Remote Control a E Audio Output for DF and ecoder cofiguration Option 2 Channel Remote Control 7 Remote Control Channel 2 Ethernet ports for remote control NMEA Ethernet 5 Slave DCU Ethernet connector for factory use only Page 56 of 74 RHOTHETA User Manual RT 800 6 2 Device Ports 6 2 1 Antenna Unit Port Connecting Cable DCU AU Antenna Unit RS485 13 A Contact Pin Signal x s Output power supply to Antenna Unit 9876 RS485 A Se
44. ge 62 of 74 RHOTHETA User Manual RT 800 6 5 3 Test Program Port for service or test operation Software and new firmware upload 1 23 45 Test Program RS232 Contact Pin Signal RS232 Tx Output serial data with RS232 level RS232 Rx Input serial data with RS232 level GND level for RS232 connection Page 63 of 74 RHOTHETA User Manual RT 800 7 Guideline for optimal DF antenna position The quality of the bearing results depends largely on the position of the antenna So an antenna position has to be found where the transmitter s wavefield can reach the bearing antenna as undisturbed as possible If high bearing accuracy is demanded no metallic resp RF conducting obstacles shall be around the antenna unit in an angle of 45 towards the horizontal Objects being in the restricted area will disturb the arriving wave field Reflections will arise which might disturb bearing accuracy and so on decrease the bearing accuracy This physical effect generally is valid for all bearing systems In practice often a compromise has to be found between bearing and other interests Important For more information on this topic please refer to RT 800 Installation and Configuration Manual optional RHOTHETA Lightning Protection Rod Antenna Unit mm m ms mr mm pg em R mr ms mr mr mm mei u restricted area for any metal obstacles AA Fig 45 Example for optimal DF antenna posi
45. h level of selected frequency here CH 02 Activation of Auto Squelch Function of selected frequency here CH 02 Automatic squelch level adjustment of selected frequency here CH 02 Fig 25 Dialogue window Squelch level adjustment 4 3 2 Manual Adjusting of Squelch Levels Please notice hints described in chapter 4 3 1 when adjusting the squelch level The squelch levels of the adjusted surveilling frequencies main frequency emergency frequencies monitoring frequencies are to be adjusted individually The system is scanning the displayed frequencies in the background and is showing on the display their noise levels as well as their squelch levels Scanning and displaying of the corresponding frequencies takes a certain time As soon as signal level and frequency are apearing on the screen the squelch level for this frequency can be adjusted Page 35 of 74 RHOTHETA User Manual RT 800 e Open dialogue window using key ET When opening the dialogue window the system is scanning the signal levels of the surveilling frequencies channels and is showing the presently received signal levels and the previously selected squelch levels on the screen of the display As soon as the noise level of a frequency is getting visible on the display the squelch level of this frequency may be adjusted e Select frequency channel to be adjusted using arrow keys GO The selected frequency channel is displayed now brighter and framed red
46. hed as well Note The standby operation is not available if there s an error flag or an active alert emergency transmitter 3 3 1 Standby Mode SAR During this standby operation L Cycle 70 sec the traditional emergency e H i frequency 121 500 MHz and all Cospas Sarsat frequencies Fig 14 Example Timing Standby Mode SAR These frequencies are preset In the system 406 Scan 22 Y 121 500 3 3 2 Standby Mode PLB During this standby operation the DF system is surveilling exclusively the emergency frequency 121 500 MHz This frequency is preset in the system 121 500 Because there is no scanning necessary Fig 15 Example Timing Standby Mode PLB this mode reacts very fast if a distress signal from ELT PLB EPIRB on 121 500 MHZ is activated Page 23 of 74 RHOTHETA User Manual RT 800 3 4 Scan Dialogue The Scan Dialogue provides the activation of two different scan modes In the first mode it is possible to scan eight freely selectable channels of all bands which are scanned in less than two seconds Fast Channel Scan In this mode a BeepTone filter could be activated which Issues an alarm if a distinct tone frequency is recognized and ignores all other signals The second mode provides a quick scanning of the lower marine band in approximately three seconds Fast Marine Scan Scanning Functions Channellist for Fast Channel Fast Channel Scan Fast Marine Scan Scan
47. iltering of Emergency Transmitters ID Only 22 33 EAMG Opo ANON u ini aa m ua ae u ukawa Su Suysa da 23 3 3 1 Standby ee 23 3 32 sstandby Mode RE 23 324 Scan Dia gue a ea 24 SS E ME GE Rn elen WEE 24 34 2 Fast Marine Scans a ee 25 3 9 SAR DIGIOQUC nee ee ee see 27 3 6 Cospas Sarsat Decoding Data Content 28 Operating and Adjusting wis iii lleida 30 Al SA ee een II 31 4 2 Setting Main Bearing Frequency Channel 32 42 1 Adjusting Main Bearing Frequency ans aa 32 4 2 2 setting a Main Operating Channel ae in 33 O a EE 34 4 3 1 Hints for Squelch Level Adjustment a 34 4 3 2 Manual Adjusting of Squelch Levels 35 4 3 3 Automatic Adjustment of Squelch Levels cc cccccccseeeceeeeeeeeseeeeeeeseeeeeeeeaeeesaeeeeesaeeeeeaaees 36 434 Alltomalc SaUuelc o a S dt eee i 37 4 4 Adjusting Monitoring Operation and ID only Filtering oooccccoooccnnoconnnnccnccnnonononnnnonconconaroncnnonons 38 4 5 Activating Standby et eee 39 46 Setting Brightness DIMMING D TTT 40 4 6 1 Automatic Adjustment of Brightness of Display and LEDSs 41 4 6 2 Manual Adjustment of Display and LED Brightness 41 4 6 3 Ad
48. itc signal is muted The last received Cospas Sarsat message can be displayed again by pressing function key F4 The data content of a received Cospas Sarsat message can be stored to an internal memory with the function key SEN and displayed again with functon key RERIG During the decoding of Cospas Sarsat signal the squelch level could not be adjusted because the Auto Squelch is activated automatically Page 28 of 74 RHOTHETA User Manual RT 800 Bar of progress of remaining waiting period Decoding Wait for Puls Frame Protocol Time span since last received pulse Count ry Va 31 56 Signal level and squelch level Auto Squelch activated Data content de GPS Position Longi Hew Puls Permanent Memory Last Puls Ea Save Restore Recall Fig 19 Cospas Sarsat data decoding Data Content e Frame Sync Ok normal Cospas Sarsat Signal or SelfTest Cospas Sarsat Signal in self test mode The 24 synchronizing bits have been received correctly e Protocol Used protocol User Test Standard Test or National Test e Complete Hex Message Complete data signal coded in hexadecimal notation Bit 25 to 112 and if available Bit 113 to 144 e Country country identification numeric code e Beacon Identification 15 Hex MMSI Identification Transmitter identification of a registered transmitter Fifteen Hexadecimal Character Beacon Identification if signal contains a MMSI I
49. ited to 8 digits The password may consist of any numbers and signs as well as special marks and space marks A space mark at the beginning of the password is not possible e Confirm your input using key Ok The password is stored for further operation Page 54 of 74 RHOTHETA User Manual RT 800 5 5 Unlocking Setup Settings Caution Wrong or faulty settings in setup menus as Interface System and Service may lead to dysfunctions These settings are password protected Before starting to change these settings password protection has to be released If the setting procedure is interrupted by pressing key ES password protection is automatically enabled again m The blocked menu setting is indicated by a closed grey padlock Locked qe The menu setting deblocked and opened green padlock is visible In this Unlocked constellation all parameters may be changed In order to unlock the setup menu press function key F5 HAGIA s ES An input field for entering the password is opened Enter password by the means of the numeric keys or the editing fields operating editing fields see 4 8 2 Prior to first putting into operation the DF system is protected by a preset password gt The preset password is 123 Confirm input by using key Ok Menu items as Interface System Service can be edited now and changed if desired After unlocking the system as described in 5 4 2 you may create and change your personal password Pa
50. justment of Key Illumination legends 41 Page 4 of 74 RHOTHETA User Manual RT 800 4 7 Setting the Volume Volume u uuu u A A ess N 42 4 7 4 Muting the Speaker Mute 42 4 7 2 Setting Speaker Volume A 43 4 7 3 Functional Test of Gpoeaker eee ee 43 4 8 Activating Memory ys Band TUNCON EE 44 4 8 1 Recall Frequency Channel from Storage List a 44 4 8 2 Edit Text of Frequency Channel in Storage List 45 4 8 3 Move a Frequency Channel within a Storage ist 46 4 8 4 Delete a Frequency Channel in the Storage st 46 4 8 5 Store a new Frequency Channel in a Storage let 47 Metteg 48 9 iS EE 49 Selle HAUCH Oben ushu anus aa u ka i ee Qa idea mu mai usa umasa tuspa 49 5 2 Menu Interface uuu ee ee es 50 92 NMEA SO SEMENCO E 50 92 2 y Y A A 50 923 NMEA DAUG ae a am unum Beisein 51 5 24 Compass Source ana Baal ee r 51 AS A 52 9 3 1 sAOORCSS ID EE 52 9 32 Amena DA o a e ee dende ea 52 99 3 AU AA OU AE 52 9 94 A a hasqa en 52 9 99 Po RI a a a a a a a 53 9o07 leie reide Le unutaq sam oa aa a liston nares 53 9 97 E e Ee EE 53 E Ee e le WEE 53 E We LONE Decoding enter 53 ESO BAP o een 53 94 MENU SENICE o ol cit a ds 54 Sn O A hyk oh 54 5 4 2 ee WEE 54 9 9 WnlOCKING Setup ee eg 55 Jee 56 O A PP sass
51. l be set above the noise level For correct setting of the squelch level please pay attention to chapter 4 3 The DF system captures about 280 bearing values per second These bearing values may vary significantly depending on signal quality signal strength and modulation This range of spread is the narrower the better the signals quality is respectivly wider if the signals quality is decreasing The processing electronics will average the bearing values over a certain time thus achieving a rather smoothed display of the bearing value additionally this averaging procedure still produces good bearing results if there s a wide spread of e g 45 The relative as well as the digital bearing values will be put out by the DF system as averaged values The relative bearing value is depicted as an arrow and refers to the longitudinal axis of the antenna This corresponds if mounted correctly to north Page 16 of 74 RHOTHETA User Manual RT 800 Digital display of bearing value 74 Direction of reference Fig 6 Digital display of bearing value The digital bearing display is a 3 digit number with a resolution of 1 degree Depending on compass data only used in mobile applications the bearing data displayed digitally with following directions of reference Display Direction of reference Relative Brg Bearing relative to longitudinal axis of antenna Magnetic Brg Magnetic North Bearing relative to magnetic North True
52. l data RS485 from AU Missing or damaged cable serene wende AU and DCU resp defective AU Error 09 Connection No AntennaUnit Antenna gt Display 9 2 Warnings Main voltage supply Low voltage supply of AU Warning 02 Ext dau Compass data not available NoCompassFound xternal device see page 51 Warning 10 External device Incorrect NMEA data Value out of allowed range Warning 11 I I l External device Defective data recognized on NMEA interface Warning 12 Ext I devi Defective data recognized on NMEA interface NMEA CheckSumm e Check Sum Warning 13 Ext I devi Defective data recognized on NMEA interface Bad NMEA Bad Frame al Be MIES Frame Warning 20 Connection Display gt Antenna Bad data of DCU mismatch of telegram length EE Cal SE Data error in Cospas Sarsat data block data could transmitter direction not be decoded finder Received transmitter Frequency of transmitter too low Received transmitter Frequency of transmitter too high Warning 30 The stored settings cannot be read Device is ON operating with default settings Simulation Mode The AU simulation mode is active Imulat On Warning 40 E az A Slave DCU dont find it s corresponding master Warning 21 AU Decode Err Page 71 of 74 RHOTHETA User Manual RT 800 9 3 Frequencies of channels on maritime band Channel frequency ship station Frequ
53. l to be adjusted here Ch 02 Squelch level for Ch 02 Noise level on Ch 02 Fig 24 Adjustment squelch level Industrial areas e g near harbours may be featuring higher noise levels than offshore areas Therefore it is important to verify regularily the adjustment of the squelch level of all active frequencies main frequency emergency frequencies and monitoring frequencies and if necessary to readjust in order to achieve full sensitivity of the DF system e When bearing emergency transmitters with very weak signals it may be useful to deactivate the squelch function on the corresponding frequency see 611 in the squelch diaglogue in order to take full advantage of the DF systems sensitivity In this case check permanently if bearing the transmitter and not bearing disturbing signals When verifying a change of heading should cause a change of the bearing value Page 34 of 74 RHOTHETA User Manual RT 800 Adjusting window for main bearing frequency here Ch 02 Adjusting window for emergency frequencies Adjusting window for additional monitoring frequencies Ok Esc Monitoring Freq 121 5600 466 6259 Chia 91241 6549127 Dpp adjust Squelch Level squelch level of corresponding frequency here 121 650 MHz Noise level of corresponding frequency here 121 650 MHz selected Frequenc all Frequencies S geen ALL AutoAd just Automatic adjustment of all active frequencies Deactivation of squelc
54. monitoring operation shall stay actived permanently switching off by mistake can be avoided see 5 3 6 Opening dialogue window for setting new monitoring frequency channel Setting new Frequency Channel see 4 2 Switching on off selected monitoring frequency and emergency transmitter filtering ELT PLB e Confirm selection using key Ok and return to bearing mode Page 38 of 74 RHOTHETA User Manual RT 800 Note Please verify correctly adjusted squelch level for set monitoring see 4 3 for possible noise signals might release alert thus delaying further monitoring operation 4 5 Activating Standby Operation Standby Modes 121 544 LAT 58 446 Scan ctivate Activate Standby Standby Rode PLE hoce Gab il Open dialogue window using key Key F4 will activate PLB standby operation The display gets dark and the emergency frequency 121 500 MHz is further on controlled in the background The standby operation is indicated by the fast flashing monitoring LED Additionally the ID only ON OFF LED is blinking Because there is no scanning necessary this mode is useful for a fast reaction for PLB ELT alarms transmitting on 121 500 MHz Key F5 will activate SAR standby operation The display gets dark and the emergency frequency 121 500 MHz and Cospas Sarsat frequencies are further on controlled in the background The standby operation is indicated by the monitoring LED This LED slowly flashes 3 times with a short break aft
55. munication direction finder and a SAR Search and Rescue direction finder thus allowing to bear all coastal and maritime radio stations EPIRB Emergency Position Indicating Radio Beacon equipped persons or vessels may be found quickly and safely The DF system RT 800 allows the bearing of radio signals on 5 different frequency bands as well as traditional emergency frequencies in the VHF and UHF range the common calling up channel 16 in the maritime radio band and the widely used Cospas Sarsat emergency signals Optionally the whole frequency range 118 000 MHz 470 000MHz could be unlocked Frequency Ranges Standard Version Optional extended Frequency Range VHF air band 118 000 MHz 123 975 MHz 118 000 MHz 136 992 MHz VHF marine band 154 000 MHz 162 995 MHz 137 000 MHz 224 995 MHz Maritime channels Channel 00 Channel 88 Ship Coast Ship Coast UHF air band 240 000 MHz 245 975 MHz 225 000 MHz 399 975 MHz Cospas Sarsat 400 000 MHz 406 092 MHz UHF FM band 406 100 MHz 410 000 MHz 406 100 MHz 470 000 MHz Full automatic bearing of emergency signals in the monitoring and standby mode guarantees additionally a permanent emergency surveillance and the auto alert function The DF system consists of two units the bearing AU Antenna Unit and the operating device DCU Display Control Unit The bearing antenna is a dipole antenna its housing contains all bearing electronics Thus short bearing signal paths with low loss
56. n grundlegenden Anforderungen und den brigen relevanten Anforderungen entspricht e der Richtlinie 1999 5 EG ber Funkanlagen und Telekommunikationsendeinrichtungen relevant f r RT 800 AU e der Richtlinie 2004 108 EG ber die elektromagnetische Vertr glichkeit relevant f r RT 800 DCU e der Richtlinie 2006 95 EG betreffend elektrische Betriebsmittel zur Verwendung innerhalb bestimmter Spannungsgrenzen relevant f r RT 800 DCU e der Richtlinie 2011 65 EU zur Beschr nkung der Verwendung bestimmter gef hrlicher Stoffe in Elektro und Elektronikger ten relevant f r RT 800 AU und RT 800 DCU For the RT 800 AU the following harmonised standards are applied F r die RT 800 AU wurden die nachfolgenden harmonisierten Normen angewandt HEALTH amp SAFETY Art 3 1 a EN 60950 1 2006 AC 2011 Gesundheit und Sicherheit Art 3 1 a EN 60950 22 2006 AC 2008 EMC Art 3 1 b EN 300 220 2 V2 3 1 clause 5 1 4 6 Elektromagnetische Vertraglichkeit Art 3 1 b EN 301 489 1 V1 9 2 For the RT 800 DCU the following harmonised standards are applied Fur die RT 800 DCU wurden die nachfolgenden harmonisierten Normen angewandt HEALTH amp SAFETY Art 3 1 a EN 60950 1 2006 AC 2011 Gesundheit und Sicherheit Art 3 1 a EMC Art 3 1 b EN 61000 6 1 2007 Elektromagnetische Vertraglichkeit Art 3 1 b EN 55022 2010 AC 2011 Murnau 2012 12 6 Murnau den 6 12 2012 Gesch ftsf hrer Page 74 of 74
57. nding lighting Store setting using key Ok Page 41 of 74 RHOTHETA User Manual RT 800 4 7 Setting the Volume Volume With this dialogue the volume of the speaker is controlled The muting function Mute will switch off the speaker An additional testing routine can test the speaker s function adjust Volume external Speaker Activating test function Maximum volume Medium volume Minimum volume Activation of mute function Fig 32 Dialogue window Volume 4 7 1 Muting the Speaker Mute An emergency signal received the speaker will give a permanent alarm signal This signal or the received radiotelephony can be muted if disturbing Note The period of the muting function is limited to a certain time if the setting Monitoring Off Blocked is active in the system menu See chapter 5 3 6 After that span the acoustic signal is switched on again automatically e Open dialoge window using key e Press F1 and activate muting function of the speaker e Store setting using key Ok and return to bearing display The speaker switched mute the bearing display will show the flag Mute as a reminder The basic setting of the DF system is the option Xl Normal Fig 33 Muting the speaker Page 42 of 74 RHOTHETA User Manual RT 800 4 7 2 Setting Speaker Volume The volume of the speaker can be set infinetely variable In order to avoid switching off the speaker by mistake the minimum volume is limited to a valu
58. of the display elements e g more dimming desired during night operation the illumination setting may be adjusted manually see chapter 4 6 2 The photometer is deactivated Note In order to avoid complete darkening of the display the brightness setting is limited to a minimum value of 10 Page 40 of 74 RHOTHETA User Manual RT 800 4 6 1 Automatic Adjustment of Brightness of Display and LEDs active TFT Display amp Led s e Open dialogue window using key Dimming e Press left key and select option Automatic e If necessary readjust automatically set brightness using keys GO and function keys F2 F3 and F4 e Store setting using key Ok Fig 30 Automatic dimming 4 6 2 Manual Adjustment of Display and LED Brightness active Dimming hode Manual DUT Oo matic TFT Display amp Led s e Open dialogue window using key DIE e Press left key and select option kl Manual e Set brightness using arrow keys GE e Store setting using key Ok Fig 31 Manual dimming 4 6 3 Adjustment of Key Illumination legends Note In order to enhance lifetime of the luminous foils and the TFT display we recommend to operate the key illumination in mode Automatic C orf PUT D matic Open dialogue window using key Dimming Select mode of key illumination by multiple pressing of the key On Permanent key illumination Off Key illumination off Automatic Kev illumination corresponding to surrou
59. rial data connection DCU AU 9600 Baud semi duplex receive and transmit RS485 B P N O Input audio signal resp analog Test Service S H d gt C AMPHENOL_T3105 001 u E 12U 39U S C 5 C GND Su TE m e 5 C TT cable shield _ 7 O lt connected to GND bat A Connection connecting cable 6 poled with shield Connection Antenna Unit length 1 to 50 m cross section of conductor min Display Control Unit Connector type 6 x 0 38 mm Connector type RHOTHETA length 50 to100 m cross section of conductor min SubD 9 poled male Article Number X 1067 6 x 0 50 mm Fig 44 Connecting cable DOU AU Page 57 of 74 RHOTHETA User Manual RT 800 6 2 2 GPS RS422 Port This optional Build To Order Option input is used to connect an external GPS device to set the internal system clock This is required for syncronisation of the bearing values if several direction finders are connected together by a command and control center 12345 GPS RS422 Contact Pin Signal 6 x RS422 Rx A x Input of serial GPS data with RS422 level 1 RS422 Rx B Output power supply for external GPS 6 2 3 Fuse F3 echt F3 e IEC 6012 Tosa250v 7 8 9 slow Antenna Unit RS 514131211 aN K da d RARA This protection fuse covers the power supply of antenna unit as well as external GPS Page 58 of 74 RHOTHETA User Manual RT 800 6 3 Remote Control and IP Audio Encoder Port
60. s Audio Encoder Channel 1 Remote Ctrl Status 1 AUDIO Ethernet Audio Encoder Channel 2 Remote Ctrl Status o 1 2 AUDIO Ethernet 3 Wa 4 Head ltem Marking NMEA Ethernet NMEA Ethernet phones 1 ger a Blinks during boot process of IP Audio Encoder 2 Status LED Blinking IP Audio Encoder is sending green On IP Audio Encoder is not sending 3 Head After switching on the DCU the current IP address of the IP Audio Encoder is output to hones connected headphones This is only used during configuration process p 4 ewech Ethernet connection of IP Audio Encoder must be connected to LAN 5 nn Ethernet connection of NMEA remote control must be connected to LAN If the option 217 Remote Control Channel is used so it has the same connectors as the Channel 1 Page 59 of 74 RHOTHETA User Manual RT 800 6 4 Power Supply Power Supply 2 3 85 264 V 1 3 0 4 A 47 63 Hz Power Fuse F1 F2 IEC 60127 T5A 250V Item 5x20mm slow Pin Marking N 1 EX Neutral IEC 60320 C14 inlet for use of power cords with IEC 60320 R PE C13 plugs protective earth L 85 264 Volts 1 3 0 4 Ampere 47 63 Hz 3 Line 4 Built In Fuse Embedded replaceable Fuse of type IEC 60127 T5A 250V 5x20mm replacable slow Page 60 of 74 RHOTHETA User Manual RT 800 6 5 Service
61. t Page 30 of 74 RHOTHETA User Manual RT 800 4 1 Reset of the DCU Press key c In order to restart the DCU The system stores the last settings Key illumination and the green operating light are activated The display is still dark and the system is booting the operating software The starting page shows up serial numbers and software version of the DF system are displayed RHOTHETA Elektronik GmbH Wideband Precision Direction Finder Display Control Unit Antenna Unit e Software version Em m R ternet wow riotheta de eMail emaillirhotheta de Software version e Serial number e Serial number Fig 21 Switch on system information After a period of 10 sec the bearing display will appear The system is working with the previously selected adjustments Page 31 of 74 RHOTHETA User Manual RT 800 4 2 Setting Main Bearing Frequency Channel Selection of the main bearing frequency in the VHF and UHF air band and the Cospas Sarsat band is usually done by direct input of the desired frequency In the maritime radio band the input of the channel number with related frequency is usual Both types of input are to your disposal The system will accept only inputs within the permitted frequency ranges 4 2 1 Adjusting Main Bearing Frequency Frequency step width depends on the selected frequency band The last digits will be rounded by the system Open dialogue window using key ALU EE Select with F1 or F
62. t e fa duplex channel is to be adjusted the point of reference for the maritime radio station lower band or for the coastal radio station upper band can be selected by pressing key F5 Store the input using key Ok The device returns into bearing mode and is operating on the selected channel Page 33 of 74 RHOTHETA User Manual RT 800 4 3 Adjusting the Squelch Our surrounding atmosphere contains always a certain electric field strength designated as noise The received noise voltage is varying with frequency and location of the receiver Signals can only be interpreted reasonably if their level is above the surrounding noise level The squelch electronics make it possible to adjust a threshold below which incoming signals will not be processed The DF system will work only if there is an incoming signal with a level above the squelch level If the signal level is below the squelch level reception will be switched off 4 3 1 Hints for Squelch Level Adjustment The squelch level of the corresponding frequency channel is to be adjusted only when receiving no bearing signal The squelch level is to be adjusted as close as possible above the noise level If the squelch level is adjusted too low it is within the noise level and the DF system is affected in its whole performance If the squelch level is adjusted too high very weak bearing signals will be suppressed by the squelch function Correct Too low Too high Channe
63. t and IP Audio AUDIO Ethernet Option 2 Channel Remote Control e u u u S Audio Output for DF and ecoder cofiguration s Page 15 of 74 RHOTHETA User Manual RT 800 3 Operation sa L aane Ch 02 Ship we The display unit of the DF system RT 800 UU e Monitoring during the bearing operation is the Tai Ean Mis concentrically arranged TFT display All PARA current bearing data settings and status Hag reports are displayed here Top left in the display the current main bearing frequency or if operating in the sea band the current main bearing channel will be displayed If a duplex A channel is selected the reference position INEI SEN Ship for a maritime radio station is WW or indicated additionally or Coast for a coastal radio station The frequency band MES WS scan related to the current main bearing Fig 5 Bearing operation frequency channel is indicated too 15 The level of a received signal on the selected operating frequency channel is indicated digitally in the range of 0 to 99 and additionally as bar graph The scale is not calibrated and serves as a measure of signal strength in quality The bearing electronics will process data only if their signal level is above the selected squelch level noise suppression Even without a received signal the DF system may display a certain signal level noise In order not to bear these environmental noise signals the squelch level shal
64. tion Page 64 of 74 RHOTHETA User Manual RT 800 8 Technical Data Sheet 8 1 Electrical Characteristics Method of bearing Doppler principle 3 kHz rotational frequency right left rotation CW CCW Bearing indication Relative bearing and true bearing related to North if external heading data available Bearing accuracy 2 RMS Internal resolution iS Sensitivity HF voltage at receiver input 50 Q VHF UHF lt 100 nV Cospas Sarsat 406 000 MHz lt 150 nV Stability of 2 0 ppm AHT 2 x 10 in temperature range 30 C to 80 C frequency Receiving bands 5 VHF air band VHF marine band UHF air band Cospas Sarsat UHF FM Band Receiving Standard Version Optional Frequency Range frequencies VHF Airband 118 000 123 975 MHz 118 000 136 992 MHz frequency ranges VHF Marineband 154 000 162 995 MHz 137 000 224 995 MHz UHF Airband 240 000 245 975 MHz 225 000 399 975 MHz Cospas Sarsat 400 000 406 092 MHz UHF FM Band 406 100 410 000 MHz 406 100 470 000 MHz Marine channels Channel 0 28 60 88 ship station coast station in each case Channel pattern 25 kHz 8 33 kHz 5 kHz depending on frequency band Monitoring Monitoring Scanning modes Four additional frequencies emergency frequency 121 500 MHz and three free selectable frequencies are monitored during normal operation Standby The Cospas Sarsat and 121 500 MHz emergency frequency is monitored
65. ume is adjustable with 2 Speaker 42 button Volume J Power Switch Switches system power On and Off Be Page 9 of 74 RHOTHETA User Manual RT 800 2 2 Front View Buttons and Display nn Eee 3 ech 100404048 Dimming l 2 lt l 4 121 568 HHz d I SN mo T 1 i H amp 4 E A J A 3 Volume en gt Squelch E k J lt a Memory GY Band E C s W SRP Ze H Channel Freq Esc T Fig 2 Front View Buttons and Display Seene ann Tree Reset of the control panel Opens dialogue window for adjustment of brightness of the TFT display ofthe LEDs and illumination of keys Opens dialogue window for adjustment of volume and mute function 16 Opens dialogue window for setting main bearing frequency channel Shows present bearing values during bearing data content of Cospas Sarsat or corresponding settings dialogues TFT Display Thin Film Transistor Page 10 of 74 RHOTHETA User Manual RT 800 nr Arrow keys enable selection of selection fields Increasing or decreasing of a value for one step Confirms and stores input or selection Closes dialogue window Numeric keys for direct numeric input of frequency channels Measures environmental brightness for best automatic Sensor of brightness adjustment of brightness of the TFT display and key 40 illumination oe Opens settings dialogue monitoring scanning mode
66. unction key F4 le enables direct switching to maritime emergency channel 16 Note Please verify correct squelch adjustment of channel 16 For squelch adjustment see 4 3 Pressing key F4 recalls the previous bearing frequency 3 1 6 Function SAR Pressing function key F2 will show the SAR Dialogue This dialogue grants access to following frequencies and functions e All Cospas Sarsat frequencies separated in channels e Start of Cospas Sarsat Scanning Mode all Cospas Sarsat Frequencies are monitored e Cospas Sarsat Frequency found by last scan e Decoding of Cospas Sarsat messages e 121 500 MHz Emergency Frequency e 121 650 MHz typical Training Frequency of PLB s e 243 000 MHz Emergency Fequency In the dialogue you could navigate with the arrow keys EM GO By pressing Ok the selected frequency is selected as new main frequency In chapter 3 1 6 the SAR Dialogue is decribed in detail 3 1 7 Function Scan By pressing the function key F3 i Scan the scan dialogue is shown where the scan modes can be activated The dialogue provides one scan mode to scan eight channels freely selectable of all bands and a second scan mode to scan all ship frequencies of the lower marine band in 5 kHz steps A detailed description of the scan dialogue can be found in chapter 3 4 on page 24 Page 20 of 74 RHOTHETA User Manual RT 800 3 2 Monitoring Operation Activation and adjusting monitoring operation see 4 4 The DF system RT 8
67. und during Fast Channel Scan with activated BeepTone Decoding the scan process is stopped and the signal analysed Only if a valid audio signal BeepTone is decoded an alarm signal is started Ifthe signal stops or no valid audio signal was decoded the scanning procedure starts over again after five seconds Remark Alarm is always started if a signal with an ELT Modulation was recognised 3 4 2 Fast Marine Scan By pressing the function key F5 m a fast scan mode for the lower marine band is activated The label of the key changes to and indicates that the Fast Marine Scan is to be started If the Fast Channel Scan was already activated it is deactivated because only one scan mode could be active at a time The frequency range of Fast Marine Scan is fixed from 156 050 MHz Channel 01 to 157 425 MHz Channel 88 and is scanned with 5 kHz frequency step without gap The duration of one scanning cycle is approx 3 seconds The small frequency spacing of 5 KHz is used to detect stations which use frequencies between two maritime channels Page 25 of 74 RHOTHETA User Manual RT 800 General Information on Fast Channel Scan and Fast Marine Scan If a signal is found during the scan signal level above squelch level the scan is interrupted and the bearing of the signal is started as long as the signal is present At Fast Channel Scan one second after the signal was lost the scanning process starts again at the next frequency
68. with selective filtering of emergency transmitters and standby operation extern Ok Indicates correct reception of GPS sentences 18 Heading O XXRMC xxGGA if option UTC Time Base is installed additionally indicates input of compass data Page 11 of 74 RHOTHETA User Manual RT 800 2 3 Bearing Display Main Page ch 02 Ship ef by 13 memar f 22 Ch 16 Rep Fig 3 Bearing Display Designation See page Frequency or Display of present main bearing frequency 1 or 16 channel display display of present main bearing channel Display of frequency band related to present main 16 bearing frequency channel PORR SRDE Display of selected frequencies channels in monitoring Display additional to present adjustments PTT mute 4 Instruction fields Flags alan display 18 2 Display of frequency band Warnings Error messages Clear Clears the bearing value storage 19 Shows SAR Dialogue It is used for direct selection of SAR Fregencies to start 27 Cospas Sarsat Scanning and to start the Cospas Sarsat Decoding Activation of Marine Scan Mode or Fast Channel Scan scan 24 Mode e CH 16 Switch to common maritime emergency channel 16 20 Page 12 of 74 RHOTHETA User Manual RT 800 Designation See page Recall last bearing value 19 Monitoring scanning operation will be continued on next frequency channel if currently no signal is received on 21 current frequency Taking ov

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