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W4010 User Manual

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1. fur WINDOWS o M0 Sas a hoon o L J a W 4010 A ES Garzon ue A ara E AAA LI Y C 0 pe N 14 025100 MHz EE o ws ss o aparece 3 OO TTI Co T22 Technical Data Interface RS232 serial Format of the data freely adjustable via menu Remote address O to 9 Things to be delivered 1 x Remote Control Card with CPU 68HC11 1 x Back panel W 4010 1 x Cable with plug Build In and User s manual Build In actual videocard at the bottom of the unit has to be exchanged versus the remoteboard everything is to plug Prices Germany DM 490 15 MWST Switzerland CHF 490 6 5 MWST Sales WAVECOM Elektronik AG Hammerstrasse 8 CH 8180 Buelach Tel 01 858 70 60 Fax 01 872 70 66
2. With F7 B signals look for the two inner tones These can be recognized by the two LEDs with somewhat brighter intensity Tune the receiver so that these two inner tones are symmetrical to the signals do not tolerate much mistuning since the tones are only 100 Hz apart The receiver must have a high frequency stability and should have the ability to tune in fine steps of about 10 Hz middle Remember that F7 B F6 TUNING A F7B SIGNAL With morse signals there is only as necessary one tone and with no signal the LED display moves to the right CW keying should move the display past the middle over to the left hand side The frequency for CW is the more or less standard 800 Hz which sounds rather low With interference adjust the minimum amplitude squelch such that the display is moved only by the CW tone Also the audio filter can be adjusted to the narrowest bandwidth 2 6 WEATHER CHART TRANSMIS SION SYSTEM Weather charts can be transmitted by radio by fixing them to a rotating drum A light sensor which moves slowly along the length converting the intensity of reflections into voltages These voltages are converted into tones which can be transmitted respectively received On the t
3. F2 CALL MONITORING MODE Selects call sign of station to be copied or all stations F3 DELETE U AND S FRAMES Enables elimination of certain frames F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode When packet radio mode is selected the defaults are 1200 baud and copy all packets On the two meter band 1200 baud in FM is usually used and on shortwave 300 Baud in SSB with AFSK A commonly used shortwave frequency is 14 103 MHz 3 kHz The LEVEL and FILTER adjustments are not active with the VHF input The AFSK signal with 1000 Hz shift undergoes separat filtering and decoding The squelch on the FM receiver should be used For operation on decoder uses a demodulator and the FILTER and EVEL adjustments are active The EVEL adjustment can normally be set counter clockwise but can be used as a tuning aid The post demodulation filter has a higher frequency which means the LED tuning display will flicker shortwave the quadrature The software offers the possibility of eliminating the U and S control packets by using the F3 key as a toggle switch If used only I information packets will be displayed With packet radio many stations can be active on th sam frequency Stations are connected together and the other channel activity has no influence on stations that are conne
4. Displays the baud rate Selects standard or variable Baud rates as obtained from the F1 measurement Redisplay of the mode as well as re synchronization go to next operating mode go to previous operating mode The ARQ E3 mode is very similar to reversals are recognized and the the ARQ E mode however differs in equipment adjusts itself the utilized alphabet ARQ E3 is automatically The F2 key adjusts easily recognized because in the the baudrate should this be mode ARQ E the segeunce FFFF occurs unknown the F1 key initiates often The 4 or 8 polarity baudrate measurement ARQ N F1 SPEED CHECK Measure Baud rate F2 BAUD RATE SELECTION Configure Baud rate F3 CYCLE SELECTOR Configure acknowledgement cycle length F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode The operating mode ARQ N is a full duplex system using the ITA 2 alphabet with parity check The F3 key can be used to set the length of the acknowledgement cycle Usually th RQ cycl with 4 characters is used the software uses this as a default Transmissions are usually at 96 Baud 72 144 or 192 Baud are also possible Baud rate measurements can be called up by using the Fl key Press F2 to set th correct Baud rate for data capture ARQ M2 and ARQ M4 i
5. Fl SPEED CHECK F2 BAUD RATE SELECTION F3 CHANNEL SELECTOR F4 FORWARD SEQUENCE F4 F3 REVERSE SEQUENCE Measure Baud rate Configure Baud rate Selects division channel or auto mode go to next operating mode go to previous operating mode The software preselects 96 Baud for ARO M2 and 192 Baud for ARQ M4 Additionally the F2 key can be used to manually change the Baud rate It is possible that a station receives messages in one TDM channel while the others are constantly in idle or RQ condition The F3 key is used to select sub channels A amp B respectively A B C and D or automatic selection of a busy channel These modes also known as TDM ARQ 28 or ARQ 56 follow the recommendations of CCIR 342 2 These modes multiplex 2 or 4 data tributaries into one data Page 23 transmission are full duplex and use the same error correcting protocoll as ARQ The 7 bit code which is utilized E The division channels can be for information transfer also divided into sub channels which permits error recognition All usually have 28 or 56 bit periods characters of the CCITT code no 3 Data capture can be changed have a 3 4 ratio between mark and without data interruption from one space bits ARQ M2 and ARO M4 mode division channel to another ARQ M2 242 and ARQ M4 242 F1 SPE
6. O VHF HF No O 09 AFANPUT Z is to be replaced with the new rear panel 3 Screw on all four screws 4 Reattach the voltage regulator ow wonsa N Q C C O DC 13 8V RS 232c TIL CENTRONICS Os gt A_p W4010 Acc Hen REMOTE CON a O VHF HF NM AF INPUT No 2 Voltage regulator For the fastening of the Remote Control PCB the fastening bolts of the DSUB plug have to be removed Washer Screw 12 When the Remote Control PCB is screwed on also y the fastening bolts of the DSUB plug can be A ad screwed on from the outside against the back panel 13 Finally the lower and upper lid of the case get screwed together A LOT OF FUN WITH YOUR REMOTE CONTROL wishes you Simone DDOGS Option Remote Control for the W 4010 The control of the short wave Remote Control the W 4010 receiver with the best known pc Superdecoder now is remotable in programme RADIO MANAGER FOR every function and keeps to be WINDOWS is becoming more and an up to date product more popular Th xtensiv frequency lists with more than The simple handling and the 30 000 entries and the very easy excellent software of the W 4010 way to use the Radio Manager are unbeaten in this price offer a totally new comfort in category furthermore operation With the option gt RADIO MANAGER
7. s address from OY to 15 XX All the keys are in function furtheron The W 4010 registrates all manual inputs After the receipt of the string PORTXX OFF lt CR gt the W 4010 does more The software only answers to commmands after the receipt of the command PORTxx ON So it is possible to use several units at not answer any the same RS232 interface or to use the PC interface itself for several times Each command string from the PC to the W 4010 has to be acknowledged by Carriage Return The Carriage Return is shown as lt CR gt in the above example The W 4010 works the xecutes th necessary actions and answers with a gt at the PC the apostrophes do not get transmitted Sign string down If the command is not defined or there is an error in it the W 4010 transmits the sign gt The software works with capital and or short letter By adding a question mark at the end of a command the PC can ask all settings from the W 4010 The W 4010 transmits the corresponding setting to the PC after the questioning respectively finished by lt CR gt and the last sign gt MODE ARQ E lt CR gt MODE lt CR gt 66 gt 66 ARQ E lt CR gt The command DATA steers the output of th interfac from the decoder over the remot received teletype data to the PC At the command DATA follow
8. Baud 600 Baud 1200 Baud 2400 Baud 4800 Baud 9600 Baud 19200 Baud Key F2 Length Stoppbit 711 7 Databits 1 Stoppbit 712 1 Databits 2 Stoppbits 8 1 8 Databits 1 Stoppbit 8 2 8 Databits 2 Stoppbits Key F3 Parity none no parity even Even parity odd Odd parity Key F4 Stationaddress 0 15 Key BU ZI Store Parameters Storage of the configuration To leave this menu switch the W 4010 off Example of the configuration for the WINDOWS terminal program In the menu settings following data have to be programmed under TERMINAL SETTINGS and DATA TRANSMISSION This data have of course to suit to that of the W 4010 Data transmission Connection to COM 1 Transmission rate to 9600 Baud Databits to 7 Stoppbits to 1 Parity none Hardware record or no record Terminal emulation TTY common Terminal settings Terminal Modi X line formatting X local echo CR gt CR LF X Receipt and transmission column to 80 Page 3 Operation of the Remote Control interface The configuration of the serial RS232 interface and the presetting of the unit s address can b ffected at the configuration menu The software of the W 4010 does not answer with an echo sign to the host When operating with the terminal program on a PC the terminal should be configured at AUTO ECHO After the receipt of the string PORTxx ON lt CR gt the W 4010 switched to mode REMOTE The expression xx stands ftir the unit
9. Check DTR hand sha Print On LED must glow on line king line ready means a voltage of 3 to 12 Volts Check to s cable short too much heck ame speed orrectly if periph is loadin if both Baud rates s Check if data format is correct C c with slower signals ral or g the line set to heck if shift jumper is set Check whether DTR signal is OK Check speed capability of printer Check filter knob position eventually turn counter clockwise Check ground of audio input Turn level knob counter clockwise Check signals Audio input display devia level too tion with other low try taking audio from t Try a diffe rent monito Check that the synch f set correctly Check that the horizontal he loudspeaker requency is set correctly Check the contrast and Turn the W 4010 off press F1 then F3 hold is brightness then on Page 34 5 2 FUSE REPLACEMENT i Remove the two screws on each side of the case and then remove the top and bottom covers Th fus holder is located on the right hand side of the PCB near the rear and th Ify after first checking the correct polarity of the supply voltage the fuse blows again the problem is in th quipment Never fuse Can be pulled easily from the holder Use only a small fuse of 5 x 20 mm dimensions with maximum 2 A rated as fast blowing replace
10. Checks and displays the baud rate F2 DATA FORMAT SELECTOR Sets data bits character to Typ By OLY F3 BAUDRATE SELECTOR Selects the fixed standard Baud rates between 110 300 baud or variable Baud F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode The default for ASCII mode is 7 After the baud rate has been data bits and 110 baud An ASCII chosen the software determines if Signal can have together with the the signal is an ASCII signal with parity bit a total of 7 8 or 9 the programmed parameters If so bits The eighth bit and the parity the character output is enabled bit are suppressed becaus th However if after ten measurements character set consists only of 7 no positive results can be bits obtained an error message will be displayed Check the results with Key Fl allows the measurement of different parameters for data and the baud rate while F3 permits the parity bits Because ASCII code manual selection of the desired does not have alphabet cases to rate The reception of ASCII shift between the BU ZI key has no signals with uncommon baud rates is effect possible by choosing the ASCII variable mode F7 B signals with 4 This code is based upon the frequencies ar th xception Alphabet No 5 and is utilized because large errors can be mostly for data transmissions present Here it is better to between computers terminals and select a fixed baud rate in modems The ASCII code has a sta
11. FCS Flag A flag consisting of the sequence always transmitted in I frames 01111110 is sent at the beginning seldom in U frames The S and U and at the end of every block The address can have up to 80 characters usually only 16 or 24 are used direct connection or via 1 repeater The AX 25 standard has several different frame types three of which are the I S and U frames Information is almost frames are used in controlling and monitoring the transmission progress The data field can contain up to 256 characters and as the transmission is transparent all characters and character combinations are allowed The FCS field contains the check sum Page 19 WEATHER FAX OPERATION F1 AUTO MANUAL F2 DRUM SPEED 60 90 120 RPM F3 E IOC 288 576 F4 go to next operating mode F4 F3 go to previous operating mode EL 2 PHASE LEFT lt lt F2 F3 PHASE RIGHT gt gt BUZI F1 FINE SPEED UP BUZI F2 FINE SPEED DOWN BUZI F3 PRINTER SELECT BUZI POLARITY POS NEG BUZI F4 FORM FEED ON OFF A large number of stations around the word transmit weather charts at certain times To print a picture it is important that the printer has paper in it and is in the status ON LINE Additionally the W 4010 push button PRINT will have to be pushed the LED PRINT MUST glow If it is desired to print the next picture leave the W 4010 in the AUTO MODE which is the default mode afte
12. Measurements to 1 1000 Baud can be Page 21 false due to differences in the quartz oscillators These false measurement can be compensated and corrected using a CONSTANT The best calibration reference is the FEC A long wave signal Measure this signal for 10 minutes with IAS BAUDRATE Now use the Key BU ZI to adjust the QFC FACTOR abt 10 to 40 as close possible to 96 0000 Baud The key BU ZI has a repeat function 3 4 OTHER FUNCTIONS Multiple Scroll Inhibit MSI character Press the appropriate Eliminates multiple scrolls line keys BU ZI and F1 to indicate UOS feeds on the screen and printer A ON or UOS OFF on status line paper and screen space saving devic when th sending station Polarity Display sends more than one Press the Press the appropriate keys BU ZI appropriate keys BU ZI and F2 to and F3 indicates NOR or INV indicate MSI ON or MSI OFF on polarity on status line if the status line microprocessor is synchronized Unshift on Space UOS Video display 40x18 and 80x24 lines When on the Unshift on Space Each press of BU ZI and F4 buttons causes the data output to changes from one video mode to the automatically shift to Letters other case upon receipt of a space 3 5 SOFTWARE MODULE B ARQ E Fl SPEED CHECK Displays the baud rate F2 BAUDRATE SELECTOR Selects standard or variable Baud rates as obtaine
13. be replaced with the enclosed 16 pole cable POS A 6 Now the W 4010 has to be turned around so that you have the lower side in front of you Page 3 W 4010 BOTTOM VIEW Remote Control VHF HF AGC VIDEO RS232 O O FILTER PCB REMOTE CONTROL PCB Front PCB TO CPU PCB TO CPU PCB TO CPU PCB The video PCB has to be removed Please return it to Wavecom Pull the 16 pole cable as well as the 40 pole cable through the empty space in which already the other cables are placed Now attach the 16 pole cable to the Remote Control PCB POS B The 40 pole cable is to be attached to the front PCB POS 2 and to the Remote Control PCB POS 3 Also please pay attention to page 4 Page 4 16 pole cable 40 pole cable CPU PCB CPU PCB to Remote Control PCB to front PCB to Remote Control PCB POS 1 Connector CPU shorter part p0000000 CPUPCB 0000000 POS 2 dobgeggoponosodadono Connector Front longer part O0000D0b Remote Control PCB 00000000 POS 3 Connector Remote Control Page 5 Present rear panel 1 Remove voltage regulator fastening aa MADE IN GERMANY DC 13 8V RS 232c ML CENTRONICS 2 Remove all four screws O WAVECOM W 4010 O O
14. modes CW ARQ and packet radio but in all other modes the knob has no effect The squelch has no effect when th knob is turned fully counter clockwise whereas when turned fully clockwise the squelch effect is the strongest In ARQ and packet radio modes the squelch causes the LED display to right has littl ffect because th Signal is stronger than the filter attenuation There is no disadvantage to this since the filter is not necessary for strong interference fr signals In case there is interference from a nearby station the knob can be turned clockwise until the point is found wher th interferenc is nulled out and at the same time th LED shift indicator shows a wide clean shift With a little practice the optimum point can be found quickly Reception fails only when the shortwave receiver has becom overloaded At this point the only remedy is a good crystal center itself during the pauses and makes tuning of these narrow shift modes much easier 2 5 BAR GRAPH DISPLAY Find a RTTY signal and turn the filter knob counter clockwise filter disabled and adjust the frequency of the receiver so that flickering LEDs move towards the outside and are symmetrical to the middle With a shift of 170 Hz the outmost LEDs should light up but with a shift of less than 170 Hz the inner LEDS will indicate maximum deviation Page 7 TUNING A FSK SIGNAL
15. of the picture the graphics capable printer via the stop signal is sent This consists CENTRONICS parallel print port of an 450 Hz tone with a length of Both 9 pin and 24 pin printer can 5 seconds followed by the tone be used in A4 portrait mode Since frequency representing black which weather pictures are continually lasts 10 seconds printed the printer must be 5 white 95 black m s Wwe VAM ee black PAUSE IOC TONE SYNCH DATA STOP SIGNAL PAUSE 5 10 seconds 30 seconds 10 30 minutes 15 seconds 2 7 HANDLING OF THE REMOTE CONTROL of the W communication Th new Remot Control 4010 enables the between the decoder and a computer PC AT via a serial RS232 interface The commands sent by the computer to the decoder will be interpreted inside the W 4010 and transposed into the equivalent unit settings The PC additionally can receive teletype data via the RS232 interface exhibite them on the monitor and save in a file The well known PC program RADIO MANAGER for WINDOWS of the company SHOC supports all functions automatically The RADIO MANAGER can now remot receiver and decoder what before was possible with the professional W 4100 only The of the decoder via the keys is also possible during the remote operation The software registrates the manual settings The changed parameters can be asked via the interface and be evaluated by the PC op
16. rate 150 Baud 300 Baud 600 Baud 1200 Baud 2400 Baud 4800 Baud 9600 Baud 19200 Baud Key F2 Length Stoppbit 7 1 7 Databits 1 Stoppbit 7 2 7 Databits 2 Stoppbits 8 1 8 Databits 1 Stoppbit 8 2 8 Databits 2 Stoppbits Key F3 Parity none no parity even Even parity odd Odd parity Key F4 Stationaddress 0 15 Key BU ZI Store Parameters Storage of the configuration To leave this menu switch the W 4010 off CONFIGURATION EXAMPLE FOR THE WINDOWS TERMINAL PROGRAM In the menu settings following data have to be programmed under TERMINAL SETTINGS and DATA TRANSMISSION This data have of course to suit to that of the W 4010 Data transmission Connection to COM 1 Transmission rate to 9600 Baud Databits to 7 Stoppbits to 1 Parity none Hardware record or no record Terminal emulation TIY common Terminal settings Perminal Modi X line formatting X local echo CR gt CR LF X Receipt and transmission column to 80 The configuration of the serial RS232 interface and the presetting of the unit s address can be effected at the configuration menu The software of the W 4010 does not answer with an echo sign to the host When operating with the terminal program on a PC the terminal should be configured at AUTO ECHO After th receipt of the string PORTxx ON lt CR gt the W 4010 switched to mode REMOTE The expression xx stands for the unit s address from MO
17. required to find certain hints and clues with respect to parity character First analyze the baud rate with distribution and repetition etc Baud rate check and make sure The signal idle condition can offer that deviations are less than 0 3 important clues with respect to the Baud The software makes sure that character length that is utilized ASYNCHRONOUS ANALYSIS F1 SPEED CHECK Displays the baud rate F2 SHIFT POLARITY Reversal of shift polarity F3 START STOP LENGTH Presetting of character lengths from 5 to 9 bits start stop errors result in the underline _ character being displayed F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode This method can quickly verify both shift polarities F2 must be whether a station is transmitting attempted The underline character with asynchronous characters or _ is used to indicate non agreement not For a complete verification between the received signal and the all character bit lengths F3 and programmed start stop values BAUDRATES BAUDOT ITA 2 45 50 75 100 ASCIT ITA 5 110 150 300 SITOR ARO 100 SITOR FEC 100 PACKET RADIO SHORTWAVE 300 VHF UHF 1200 ARO E 48 64 72 86 96 192 288 ARQ E3 96 100 192 ARO N 96 ARQ M2 96 200 ARQ M2 242 96 ARO M4 1 92 ARQ M4 242 192 DUP ARQ 125 POL ARQ 100 FEC A 96 144 192 300 SI ARO 96 SI FEC 96 SWED
18. signal is actually signal In automatic mode being received The optimum FEC synchronization can be achieved software is also able to with both ARQ and FEC synchronize without the specially DEFINITIONS FO SITOR ARQ ISS Information Sending Station IRS Information Receiving Station The WAVECOM software always decodes the Information Sending Station The Sitor Amtor 7 bit alphabet uses a 3 4 mark to space ratio however it is not identical to the alphabet No 3 The Baud rate is always 100 Baud i e 10 ms bit length The ISS sends 210 ms blocks of 21 bits The IRS sends 70 ms acknowledgement pulses The two IRS acknowledgement pulses called CS1 CS2 confirm error free reception the repetition of the same control character tells the ISS to repeat the last block respectively the last 3 characters If the ISS does not receive an acknowledgement it sends an RQ block The following illustrates the transmission mode of both stations ISS 123456712345671234567 123456712345671234567 IRS 1234567 lt 210 ms gt lt 70 ms gt lt 210 ms gt SITOR FEC This mode is defined in CCIR Rec data stream with the Sitor alphabet 476 3 Mode B and is a round table and the shift is standardized at operation without an 100 HZ acknowledgement to the transmitting station The SITOR FEC has two ways Each character is sent twice with of addressi
19. switching for SW VHF UHF inputs call sign selective monitoring non information packets can be ignored Graphik printout with 9 or 24 pin printers automatic drum speed selection 60 90 and 120 rpm automatic IOC selection 288 and 576 automatic start synchronization automatic stop synchronization drum speed fine correction wide band demodulator 4 3 SOFTWARE MODULE B Baud rate check ARO E ARQ E3 ARO N fast Baud rate measurements typ 1 error IAS Baud rate typically 0 01 error Baud rates 48 64 72 86 96 144 192 Baud rate variable 30 to 300 Baud Automatic repetition cycle recognition and RO elimination automatic polarity recognition Baud rates 48 72 96 100 192 Baud rate variable 30 to 300 Baud Automatic repetition cycle recognition and RO elimination automatic polarity recognition Baud rates 48 72 96 144 192 Baud rate variable 30 to 300 Baud Automatic repetition cycle recognition and RO elimination automatic polarity recognition ARQ M2 ARQ M4 ARQ M2 242 ARQ M4 242 DUP ARO POL ARO Page 31 2 division channels 1 1 mode Baud rates 86 96 and 200 Baud 4 division channels 1 1 mode Baud rates 172 and 192 Baud rates variable 30 to 300 Change of division channel without data interruption automatic selection of a busy channel automatic repetition cycle recognition and RQ elimination automatic polarity recognition 2 division channel
20. th remot operation The software registrates the manual settings The changed parameters can be asked via the interface and be evaluated by the PC But the user can also write his own software or even can steer the W 4010 from the WINDOWS terminal program The configuration of the serial W 4010 Remote Control interface always has to suit to the settings of the PC To that belong the baudrate number of data and stoppbit and the parity The configuration of the W 4010 interface happens in a special mode via the keys at the front panel The data are k ept in a nonfluent EPROM and even stay after a power lack memory T The configuration menu becomes activated by pressing the key MODUL when the W 4010 is being switched on The setting possibilities are shown self explaining on the monitor To leave this mode the decoder is Simply switched off Additionally to the known teletype modes the W 4010 knows the switching to the new mode JV FAX The data links will like specified by JV FAX be switched to the W 4010 demodulator With this the W 4010 can be used as a demodulator for black white faxpictures The command JV FAX must only be given in DOS due to the switching of the data Page 2 Configuration of the Remote Control interface To enter the configuration menu the MODUL key has to be pressed while switching the W 4010 on Key F1 Baudrate 150 Baud 300
21. 1 LENGTH SELECTOR Block length preset for 4 5 or 6 characters F2 BAUDRATE SELECTOR Selects standard or variable Baud rates F3 MODE RECALL Redisplay of the mode as well as re synchronization F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode ARQ CCITT 3 sounds very similar to ARQ system it is a single Amtor Sitor except one has the frequency simplex system impression of a slower Baud rate Transmitted block can have a length due to the longer blocks for of 4 5 or 6 characters A cycle is characters and pauses The standard twice as long as the block length speed is 96 Baud and the block If the ISS receives the length is usually 5 or 6 acknowledgement then the next characters A Baud rate measurement block is transmitted with opposite is very difficult because there is phase The transmission rate can be no signal between the character chosen from among several Baud blocks Therefore interference rates The Wavecom software always causes measurement errors receives the ISS Information This system is similar to the Sitor Sending Station The timing of the 2 stations looks like five 7 bit characters transmitted one 7 bit acknowledgement received five inverted 7 bit characters transmitted etc SI FEC Fl SPEED CHECK Displays the baud rate F2 BAUDRATE SELECTOR Selects Baud rates
22. 232 Demodulator Quadrature demodulator with 1750 Hz center frequency automatic switching to 800 Hz with Morse microprocessor controlled switched capacitor 6 pole digital low pass filter F7 B F6 demodulator for 100 Hz shift 1200 Baud PLL packet radio demodulator Filter variable bandwidth filter composed of elliptic high pass and low pass filters each with 4 poles RTTY bandwidth 10 2300 Hz limits 600 and 2900 Hz CW bandwidth 10 800 Hz limits 400 and 1200 Hz Level pot variable minimum amplitude audio squelch for CW ARQ and packet radio Audio level the level should be between 0 1 and 5 Vp p max Page 30 4 2 SOFTWARE MODULE A Baud rate check SITOR BAUDOT ASCII CW MORSE PACKET RADIO WEATHER FAX fast Baud rate determination typically 1 error IAS Baud rate typically 0 01 error Baud rate 100 Baud automatic recognition between ARQ or FEC and SEL COL automatic polarity recognition Automatic RQ elimination automatic lock on standard variable Baud rates from 30 300 Baud bit inversion decoding 4 character sets including Cyrillic and Greek automatic polarity recognition standard variable Baud rates from 30 300 Baud selectable 7 8 or 9 bit data length automatic polarity recognition Automatic lock on for speeds from 15 300 BPM EB AR and SK recognition special characters standard Morse and Cyrillic character sets 300 600 or 1200 Baud automatic
23. ARQ 100 ARQ6 90 200 ARQ6 98 200 AUTOSPEC 68 5 SPREAD51 102 6 Page 29 4 TECHNICAL SPECIFICATION 4 1 HARDWARE Case Steel with dimensions of 200 x 250 x 80 mm 2 5 kg Front panel EDs for Traffic Sync Phasing Error Idle Rq Input B Y Output A Z and Print On Keys for Fl F2 F3 F4 On Off printer on off BU ZI menus Tuning LED 16 element bar graph Knob for variable filter Knob for minimum amplitude squelch Rear panel Coaxial low voltage jack with 2 1 mm pin for 12 14 Volts 5 pole jack with RS 232 C interface including DTR serial output TTL external input TTL or RS 232 RCA jack for short wave audio input RCA jack for VHF UHF audio input Printer output jack Centronics type Video output 75 Ohms Composite BAS Processing CPU 8 bit CMOS clocked at 4 MHz 2 or 8 KB NOVRAM 4 EPROMS 27256 5 programmable 16 bit timers Video 80 characters x 24 lines or 40 characters x 18 lines CPU 8 bit 12 MHz 4 character sets ASCII both upper lower sets CCITT 2 Tass Cyrillic Third Shift Cyrillic Third Shift Greek Interface RS 232 serial computer or printer interface with Data Terminal Ready DTR and 255 byte buffer Baud rates 300 600 1200 2400 4800 or 9600 Baud Data format 7 or 8 bits Parity Odd Even or None 1 or 2 stop bits Jumper for shift inversion Centronics printer interface with 255 byte buffer Input for external demodulator TTL or RS
24. Bina ie Steele Ii ee dae 24 SOLTWATE MOGULS ID card oN AS ciel Sie ald Shae voles ceeded Brigade Coe ta dee aller Se feted ua 2a Baud rate table ra A Washes SE SS A eee we ees 28 TECHNICAL SPECIFICATIONS Ha VOW a end cwier genes A AS AA A AAA AT a ee 29 Software mod le Ai ate new oe aia a ee hee Sa ee oes CAs Sa es Tes 30 Software module Britt nae E eee ea ee REY ay erate ih Sa Bae a 30 Software module Cx awe a a sities Anan toe aot aad 3a SOPE WATE mod le D e ea da 32 MISCELLANEOUS TEQUDLE SHOORUNGS sasa A eh A ad Ee eal ew rede Soaks 33 Fuse replacement dea a a a a dr nd wes a e ea 34 Signal InterterencSiidi a e a A glo Fated a es a 34 Warranty CONGTMET ONS iets me A a pias 35 SOULS Sra Shore se wees cate A A eid oe el aa We ly RA bee al 35 ILLUSTRATION Illustration of the processor board layout 36 Illustration of the connector placement o ooo oocooooooooooo 37 Page 2 1 INSTALLATION DC 13 8V ue HF No a 00 RS 232c TTL WAVECOM O O AJO MADE IN SWITZERLAND DN CENTRONICS O W4010 acc VIDEO REMOTE CONTROL O 50 75 Se AF INPUT y 1 1 POWER SOURCE CONNECTION use the supplied cable which is On the rear panel is a small 2 1 mm coaxial jack the inner conductor has PLUS and the outside MINUS polarity Connect the supplied cable to a regulated 12 to 14 Volt power source and pay attention that the red wire goes to t
25. ED CHECK Measure Baud rate F2 BAUD RATE SELECTION Configure Baud rate F3 CHANNEL SELECTOR Selects division channel or auto mode F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode The ARQ M2 242 and ARQ M4 242 like ARQ M2 complying with Rec systems correspond to the CCIR 342 2 recommendation REC 242 This system combines two or four data The software preselects 96 Baud for channels in a single transmission ARQ M2 242 and 192 Baud for ARQ M4 It uses a 7 bit code with which 242 Additionally the F2 key can be transmission errors can be used to manually change the Baud recognized All characters of the rate The F3 key is used to select ITA 3 alphabet have a 4 to 3 ratio sub channels A amp B respectively A The Time Division Multiplex TDM B C and D or automatic selection system operates full duplex and the of a busy channel error correction procedure operates DUP ARQ F1 SPEED CHECK Measure Baud rate F2 BAUD RATE SELECTION Configure Baud rate F3 POLARITY SELECTOR Configure polarity F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode DUP ARQ is a new system of semi repeated A frequency offset often duplex data transmission The occurs between stations A and B system additionally has an because of the automatic channel automat
26. LL Retrieves the operating mode F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode The F2 key can be used to change data bits of other characters the speed while the F3 key recalls follow while new characters start the mode with operational menu after a 10 bit distance Normally 102 7 Baud is used seldomly 68 5 To achieve an increased security Baud The software synchronizes on against burst errors SPREAD51 traffic or idle characters and spreads the transmission over a automatically recognizes the longer period of time After every polarity bit of the 10 bit Bauer codes 50 3 7 SOFTWARE MODULE D The long wave transmissions of PRESS 300 INFO 300 BUSINESS 300 and BUSINESS 50 are terminated SYNCHRONOUS ANALYSIS F1 SPEED CHECK Displays the baud rate F2 LENGTH SELECTOR Changes block display length F3 DISPLACE ONE BIT Changes the block display by one bit F3 F2 SPREAD SELECTOR data interleave spread selectorF4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode Page 28 RTTY signals can be analyzed with there is no bit slip The bit synchronous bit analysis method stream can be stopped with the BU but some specialized background ZI key and written down in order knowledge is
27. O to LS All the keys are in function fur theron The W 4010 registrates all manual inputs After th receipt of the string PORTXX OFF lt CR gt the W 4010 does not answer any more The software only answers to commmands after the Page 10 the W 4010 has to be acknowledged by Carriage Return The Carriage Return is shown as lt CR gt in the abov xampl The W 4010 works the down xecutes th necessary actions and answers with a gt at the PC the apostrophes do not get transmitted sign string If the command is not defined or there is an error in it the W 4010 transmits the sign VPF The software works with capital and or short letter By adding a question mark at the end of a command the PC can ask all settings from the W 4010 The W 4010 transmits the setting to the PC questioning corresponding after the respectively finished receipt of the command PORTxx ON by lt CR gt and the last sign gt So it is possible to use several units at the same RS232 interface As an answer to a still not defined or to us the PC interfac itself settings question the software for several times answers with the message UNDEF lt CR gt Each command string from the PC to PC transmits lt _____ __ gt W 4010 answers MODE ARQ E lt CR gt aoe a ARQ E lt CR gt MODE lt CR gt The command DATAN steers the output of th received tele
28. USER MANUAL OF THE WAVECOM W 4010 DATA AND TELEGRAPH DECODER CONTENTS N w ul ASAS A U U U A ag 00 J0O004QNRa Y RDE KD JO S G D WD ww y Y y WW Ww AINA BWNE Ope UNA OB NR INSTALLATION Power SOULCE CONNE CEL ON ii E ee eee A Brie ORS 2 Recetver CONNSCEMON we ta So thd ee la a da E 2 VISO CONMSCELOM s o ra e KA A A A A A AAA 2 Video display select Von cise wes A a pa 2 Printer paroallel aAntertaGe vw inte Swe ad a to ened 3 Serial RS7232 Interfaces ii wt og arid ORE eae EN GE Seer eS 3 Configuring the baud rate and data format 2 2 4 Using an external demodulatot iia ce Sieh ele ails cele gle tees aod acd g 4 How to install the sottware MOdUuIeS 4 5 i seca a Ra eee S 4 OPERATING CONTROLS Keypad RUNGE POMS ci E Gelade oud alee andy RA dd bushel AA A 5 Dr PUN CEA ONS ii A ao execs Stee 5 ETLESE Controla naaa A ee A E Bae S 6 eval Control ee RI 6 Bar Gfraph display s eiea A A a N da tata 6 Weather chart transmission SysteM o oo o oooo ooo ooooo ooo 7 Handling of The Remote CON Ole seria A a se 8 OPERATION AND CODE STRUCTURES Bist Of software 5 10 COS Sai A a SOE aes ge es 13 Software MOGULS Aree a A A A ay Orb Gay oR escapees 13 Baud rate measurement and IAS Baud IallB coo oooooooooooooooo 20 Other LUN CEVON Sie A Ea es aa SE ee Der a eee 21 Software module Be T nance aid aaa ele 21 Software module Cora at hie
29. ange indentation must point to the front it from the left hand position of the equipment Also the EPROM internal demodulator to the markings should be oriented similar right hand position seen from the to that of EPROM A The EPROM has front panel The external to be inserted in the proper sense demodulator can now be connected to otherwise it probably will be the 5 pole DIN rear panel jack Th destroyed external demodulator input can be Set the DIP switch located behind driven with either TTL or RS 232 module C as follows DIP switch pole 1 2 3 4 O OFF OFF OFF 1 module inserted OFF ON OFF OFF 2 modules inserted OFF OFF ON OFF 3 modules inserted OFF OFF OFF ON 4 modules inserted Page 5 2 OPERATING CONTROLS A N SYNCH ERROR PHASING RQ Fl MORIL TRAFFIC IDLE TUNING 5 Buzz B A T D yan Z At F3 PRINT E W 4010 F POWER FILTER LEVEL WAVECOM X S 2 1 KEYPAD FUNCTIONS Key Function Fl F3 Fl F2 and F3 are multi function keys and the video display indicates the actual function F4 With F4 key you can go to the next operation mode MODUL Selects between modul A B C and D BU ZI Each press of this button changes from one case to the other ie Figures to Letters PRINT When the print key is pressed the received characters will be sent to the Centronics a
30. cted together Page 18 without monitoring the rest of the channel activity After choosing the packet radio mode it becomes active with monitoring mode as default The last two or three station call signs are continuously stored in memory and can be selected with the F2 key Originator recipient and possible first repeater Can be selected one after the other After going through these 3 possibilities the monitor mode is selected again where all packets are received Whenever the packet radio mode is chosen the stored call signs are deleted Until packets are received again key F2 has no function The call sign of the selected station appears in the command line and only packets that have this call sign will reach the output regardless whether from originator recipient or possible first repeater It is therefore possible to monitor all activity of a certain station or repeater radio standard AX 25 derived from the commercial standard CCITT X 25 ISO HDLC Amateur packet radio has spread rapidly due to the initiative of an American club T A P R Packet radio is a synchronous transmission The data is usually sent as ACSII characters The amateur has b n The WAVECOM decoder offers the With packet radio information is advantage that all traffic of a conveyed in blocks frames as certain station can be monitored follows Flag Address Control Data
31. d from the Fl measurement F3 MODE RECALL Redisplay of the mode as well as re synchronization F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode After choosing ARQ E the Baud rate become an important communications is set to the default of 96 Baud mode Single channel ARQ uses a however this can be changed with parity check to recognize function key F2 The Baud rate transmission errors The procedure measured by using function key Fl is that th receiver returns a remains stored for all modes question mark to the transmitter until a new measurement is FOr each detected error The performed After th decoder has transmitter then re transmits the synchronized to the ARO E signal it last 3 or 7 characters which it displays the repetition cycle 4 or 8 which gives clues concerning th precedes with a question mark To same radio net The function key F3 should be pushed after every station or frequency change The synchronous full duplex single channel ARQ automated request has keep th 2 stations synchronized both stations transmit carrier and information continuously If there is no information then a bit pattern Idle character is used for modulation Page 22 ARQ E3 Fl SPEED CHECK F2 BAUDRATE SELECTOR F3 MODE RECALL F4 FORWARD SEQUENCE F4 F3 REVERSE SEQUENCE
32. dule A by pushing the module key while watching the monitor Thereafter push F1 to obtain the menu to setup the parameters The Fl key allows configuring the video 40 characters x 18 lines or 80 characters x 24 lines The cursor mode can be adjusted with F2 no cursor cursor no blinking cursor slow blinking cursor fast blinking The video synch frequency can be adjusted with F3 to 50 Hz or 60 Hz video text switch On In case of unreadabl switch the W 4010 Off push F1 and then F3 The programmed values are stored in a non volatile memory and keep stored even without power 1 5 PRINTER INTERFACE PARALLEL Befor interconnecting the printer with the W 4010 make sure both units are turned off The 36 pole Centronics printer output jack is located on the decoder s rear panel and is connected via the standardized Centronics cable to the similar jack on the printer The printer can be used immediately thereafter Although the Centronics printer signals have been internally filtered against RFI emissions it is recommended to use shielded cables only Som services us with the result that not all printers can keep pace Before buying a printer make sure it can print as fast as the service which you wish to receive otherwise characters will be lost when the buffer is full high Baud rates 1 6 SERIAL RS 232 INTERFACE Page 3 The RS 232 serial connector is the 5 pole DIN type and th
33. e diagrams below show the electrical connections and give a typical connection exampl Shielded cable is recommended although it is not absolutely necessary The baud rate and data format of the equipment connected to the serial port and the WAVECOM decoder has to be identical The serial port parameters for the decoder default to 300 baud 8 data bits and 1 stop bit The decoder offers the possibility of inverting the data shift should this eventually be necessary To invert the polarity open the case and change the position of the jumper right front towards the front panel RS 232 TTL Output Output Input externe demodulator DTR Input Ground 5 pole serial connector DIN type EXAMPLE OF A CONNECTION FOR A PRINTER w 4010 Printer DIN Connector 25 POL RS 232 GND 2 7 GND DATA 3 3 RS 232 INPUT DTR 5 20 DTR The DTR line signals the decoder The information from the TTL whenever the printer cannot accept any more characters If this hand shaking is not necessary in a particular case this connection does not have to be made Xon Xoff handshaking is not supported parallel output is identical with that from the serial port except that this output has a level of 0 to 5 Volts 1 7 CONFIGURING THE BAUD RATE AND DATA FORMAT FOR SERIAL COMMINICATION Choose module A by pushing the module key while watching the monitor Thereafter push F2 to ob
34. eiver an audio fa tier is not a cure for overloading in the HF receiver stage A crystal filter is especially important tot CW reception since interference is often closer in frequency than 200 Hz Depending on the quantity of signals within the receiver bandwidth adjust the audio filter bandwidth for optimum results 2 4 LEVEL CONTROL The Model W 4010 has a continuously adjustable squelch circuit which acts upon the signal amplitude when a signal is below the preset level it is squelched out completely Above this level it passes through the squelch with no attenuation This is especially important for CW because the squelch can be adjusted in accordance with th interferenc level In fact the squelch is than 200 Hz This filter respons is an optimum compromise between unwanted signal attention and intersymbol distortion caused by filter group delay The reason for this is that very strong signals caus th receiver AGC to reduce the strength of the desired signal to that of the noise When receiving a strong and interferenc TT signal this filter is not necessary and the adjustment knob can be turned fully counter clockwise to disable it During reception of very strong signals turning the knob to the necessary to prevent interference from reaching the decoder circuitry during morse pauses which would of course cause characters to be falsely decoded The squelch works in the
35. eration But the user can also write his own software or even can steer the W 4010 from the WINDOWS terminal program The configuration of the serial W 4010 Remote Control interface always has to suit to the settings of the PC To that belong the baud rate number of data and stoppbit and the parity The configuration of the W 4010 interfac a special mode via the keys at the front panel The data are kept ina nonfluent memory EEPROM and stay after a power lack happens in even The becomes activated by pressing the key MODUL when the W 4010 is being switched configuration menu on The setting possibilities are shown self explaining on the monitor To leave this mode the decoder is simply switched off Additionally to the known teletype modes the W 4010 knows the switching to the new mode JV FAX The data links will like specified by JV FAX be switched to the W 4010 demodulator With this the W 4010 can be used as a demodulator for black white faxpictures The command JV FAX must only be given in DOS due to the switching of the data lines he communication between PC and he W 4010 occures by a firm set of ommands and answers The content f all commands will be transmitted n ASCII 00dt 3 Page 9 CONFIGUTATION OF THE REMOTE CONTROL INTERFACE To enter the configuration menu the MODUL key has to be pressed while switching the W 4010 on Key Fl Baud
36. he POSITIVE pole and the blue to the MINUS pole he utilization of modern CMOS semiconductors results in a low power consumption of only 0 5 A The decoder requires a stabilized voltage source WAVECOM recommends the use of a somewhat larger than necessary supply if possible about 2 to 3 Ampere output The W 4010 decoder has an internal fuse that protects not only against overcurrent but also against wrong polarity 1 2 RECEIVER CONNECTION The W 4010 demodulator needs audio from the receiver with a level of about 0 1 Vpp up to a maximum of 5 Vpp Many receivers have line or tape recorder outputs which have fixed levels and it is recommended to use these because their outputs are independent from the volume control The large AGC range of the decoder permits using it with almost any receiver For the connection to the receiver shielded and has RCA plugs on both Sides An adapter will have to be used for 2 5 or 3 5 mm coaxial receiver jacks 1 3 VIDEO MONITOR INTERFACE Use the supplied RCA RCA shielded cable to connect the video output to the 75 Ohm input of the composite video monitor The video card has a 75 Ohm terminated output of 1 5 Vpp which can be used by all commonly available monitors A modulated TV output is deliberately not available since TVs do not hav th necessary bandwidth to give sharp and clear text 1 4 VIDEO DISPLAY SELECTION Choose mo
37. he necessary lines for JV FAX on the demodulator This switching of the RS232 steering lines leeds to disturbances in WINDOWS The voltage range of the A D converter can be adapted to other data between 0 and 5 volts by changing the reference diod Page 13 3 OPERATION AND CODE STRUCTURES 3 1 LIST OF SOFTWARE 5 0 CODES MODULE A SITOR ARQ MODULE B ARQ E SITOR FEC ARQ E BAUDOT AUTO ARO N BAUDOT VARIABLE ARQ M2 ASCII ARQ M2 242 CW MORSE ARQ M4 PACKET RADIO ARQ M4 242 WEATHER FAX DUP ARQ Speed Check POL ARQ Speed Check MODULE C FEC A MODULE D PRESS 300 SI ARC BUSINESS 300 SI FEC INFO 300 SWED ARQ BUSINESS 50 ARQ6 90 SYNCHRONOUS ANALYSIS ARQ6 98 ASYNCHRONUS ANALYSIS AUTOSPEC LENGTH ANALYSIS SPREAD51 Speed Check Speed Check 3 2 SOFTWARE MODULE A SITOR ARQ AND FEC Fl SITOR AUTO Automatic synchronization in both modes F2 ARQ OR FEC ONLY Only synchronized with ARQ or FEC F3 ALPHABET SELECTOR Selects ITA 2 Cyrillic or Greek F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode After th quipment is turned on goes to the center during block EPROM A is enabled The video pauses and the frequency deviation display now tells you that the can be seen clearly After tuning possibility exists to set
38. his point lead to undefined printer outputs 3 3 BAUD RATE MEASUREMENT AND IAS BAUD RATE The F1 key when displayed in the half stop bit can not be measured menu initiates a baudrate with this software The software measurement The measurement result performs signal calculations in often indicates which signal type large steps with the display is being received The first changing in short intervals After measurement stage is a rapid a short time the display PRECIS preliminary measurement which can MEAS appears which means that differ from the effective baudrate only small variations with respect If a more accurate measurement is to the actual baudrate are being not desired pushing the F2 or F3 measured The measurement time in key causes a return to the PRECIS MEAS should be about 10 respective operating mode minutes If the key Fl is pushed again the If the preliminarily entered IAS BAUDRATE measurement starts baudrate has too large a difference IAS means ISO ASYNCHRON and with respect to the actual SYNCHRON Baudot signals with one baudrate the TAS BAUDRATE measurement can take a very long time The keys F2 and F3 can step the baudrate up or down The baudrate adjustment via keys F2 or F3 is also important for simplex ARQ signals which often can not be measured With preselection of the IAS BAUDRATE simplex ARQ signals can be measured SITOR ARQ SI ARQ SWED ARQ DUP ARQ
39. ic channel selection befor selection If only one station is starting the transmission the best sending data the other sends an possible short wave Channel is idle bit pattern If errors occur chosen and during the transmission block repetition RQ cycles are regularly checked Within a initiated frequency range the system can select from 5 different channels The software uses 125 Baud as a using steps of 400 Hz DUP ARQ uses default since this is the most the channel like a simplex system common speed but the F2 key can be both stations alternately send 5 used to chang th speed The character blocks and a Hamming polarity sideband is changed with check sum If a transmission error the F3 key and causes no loss of appears a nonacknowledgement is synchronization sent and the last data block is Page 24 POL ARQ Fl SPEED CHECK Measure Baud rate F2 BAUD RATE SELECTION Configure Baud rate F3 MODE RECALL Retrieves the operating mode F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode The POL ARQ is a duplex system with repetition RQ cycles are two transmission frequencies initiated usually operating at a speed of 100 Baud The system uses th rror The F2 key can be used to change correcting Sitor ARQ alphabet If the speed while the F3 key recalls only one station is sending data the operating
40. ically reducing the can be lost in case of heavy block length as interference interference on the communications appears on the channel To increase channel in which case the key F2 the information transmission rate should be pushed The operating of a good quality channel the menu can be displayed with the MODE middle block length makes it RECALL key which also initiates a possible to transmit and receive new synchronization information at a rate of 75 Bauds and with long block at a rate of The SWED ARQ utilizes 3 different 100 Bauds ARQ6 98 F1 SPEED CHECK Measure Baud rate F2 PHASING Rephases F3 MODE RECALL Retrieves the operating mode F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode ARQ6 90 is a simplex ARQ system Pressing the F2 key causes signal similar to SITOR ARQ with traffic to be rephased while pressing the blocking and acknowledgement on the F3 key recalls the operating mode same frequency The system uses 200 ARQ6 90 The polarity of the Baud as well as the Sitor alphabet received signal is automatically with each block transmitting 6 recognized characters O A F1 SPEED CHECK Measure Baud rate F2 PHASING Rephases F3 MODE RECALL Retrieves the operating mode F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous o
41. ing has to be noticed after transmission of the command PORTxx OFF of the data stopps also the output when switching between PORTxx 0FF Y to PORTxx 0N the output of the data continues if DATA 0N 1f DATA 0N was setted befor Page 4 Remote Control commands PORTxx ON xx is the unit s address OFF MODE GI ARQ 1 ARQ E3 ARQ M2 242 RO M2 342 RO M4 2 42 RO M4 342 RON RQ6 90 RQ6 98 n Q SY ANALYSIS UTOSPEC AUDOT V MORS UP ARO EC A INFO JV FAX LEN ANALYSIS PACKET RADIO POL ARO SI ARO I FEC ITOR AUTO ITOR ARO ITOR FEC EAD 51 D ARQ ANALYSIS THER FAX E B GI POQUP PP YP YP Pp pp T a ee K O gt 2 hw BAUDRATE Full number in Baud depends on the chosen mode PRINT ON OFF POLARITY NOR INV REPETITION FOUR EIGHT DATA ON OFF Page 5 LANGUAGE ITA 2 TASS CYRILLIC 3 SHIFT CYRILLIC 3 SHIFT GREEK IOC 288 576 RPM 60 90 120 SCREEN 24X80 18X40 CHANNEL AUTO A B G D STATUS Answer TRAFFIC IDLE SYNC RO ERROR UNDEF ADW 2 Answer changed data of the analog input 0 255 0 2 5 VOLT HINTS e The switching to JV FAX must only happen in DOS The W 4010 switches the necessary lines for JV FAX on the demodulator Th
42. is switching of the RS232 steering lines leeds to disturbances in WINDOWS e The voltage range of the A D converter can be adapted to other Built In Manual REMOTE CONTROL for the Wavecom W 4010 e E SYNCH E ERROR ll PHASING ll RQ Fl Mou e US la TRAFFIC laa IDLE F2 BU ZI a _ ia Y IN E Z en m F3 PRINT o gt gt F4 POWER 2 A Guaca ll Me ho Video and Remote Control PCB O O OPTION AGE 68HC11 VIDEO lt 3 N SERIAL ax Fe RS 232 x D al O O First the four screws of the upper case lid have to be removed Upper and lower lid can be put aside Then the back panel has to be removed Therefore first the voltage regulator has to be screwed off see page 5 When this has happened the four screws of the back side get screwed off and the panel can be taken away Now in opposite succession the back panel can be rearranged again Put the W 4010 with the front to you Page 2 W 4010 TOP VIEW CENTRONICS RS 232c TIL Power Voltage Connector regulator CPU PCB a a TO REMOTE CONTROL PCB To FRONT PCB TO FILTER PCB 4 Detach the 40 pole cable on the CPU PCB and replace it with the enclosed 40 pole cable POS 1 5 The 16 pole cable has to
43. manually F3 MODE RECALL Redisplay of the mode as well as re synchronization F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode Every SI ARQ station can also recipient Each character avs transmit in this FEC Broadcast transmitted twice the second time mode and the Baud rate most in inverted form and if recognized commonly used is 96 Baud SI FEC as error free the decoder releases sounds very similar to SITOR FEC it for output However if the transmitted character is received This is another code for with an error then th decoder broadcasting which does not require outputs the underline character an acknowledgement from the Meee te Page 26 SWED ARQ F1 SPEED CHECK Displays the baud rate F2 PHASING Re synchronisation F3 MODE RECALL Redisplay of the mode as well as re synchronization F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode The length of the transmitted block lengths The short block blocks the switching of the block corresponds principally to the mode lengths and the data length are SITOR ARQ The system increases the detected automatically The status block lengths automatically to line show the block lengths as middle or long when the short middle OL long The communications channel is good detection of block length switching while automat
44. metal pipe as the hot water pipe is not always grounded A good receiver ground is always used However if a simple activ antenna is used in the neighborhood of the decoder or monitor interference can be expected especially at higher frequencies In general active antennas are more susceptible to interference Receiver Often RFI is radiated directly into ER receiver becaus it does not have sufficient shielding Many receivers need a 50 Ohm load on the antenna input and are very recommended not in the least for your own safety Placement of the decoder Despit th decoder s double shielding it is still possible that interference persists in the near vicinity of the receiver It helps in this case to change the location of the decoder with respect to th receiver Interference from video monitors can often b this method remedied only by using Page 35 5 5 WARRANTY CONDITONS Warranty WAVECOM pays for the transportation Wavecom Elektronik AG offers a back to the customer if the warranty of 12 months after th quipment is still in warranty date of sale If the product was purchased from WAVECOM or an WAVECOM products meet the technical authorized representative and then specifications valid at time of fails to be in good working order manufacture WAVECOM is responsible during this one year wa
45. mode POL ARQ with the other sends an idle bit operational menu pattern If errors occur block 3 6 SOFTWARE MODULE C FEC A F1 SPEED CHECK Displays the baud rate F2 BAUDRATE SELECTOR Selects Baud rates manually F3 MODE RECALL Redisplay of the mode as well as re synchronization F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode The idle condition is easily Every second bit is used for error recognized by means of the signal s correction and the characters regular mark space shift about consist of 14 bits The error 40 60 However in idle correcting code not only corrects condition it is neither possible to single errors but also error synchronize nor to measure the Baud bursts in fact error bursts of up rate to 1 second can be corrected This forward error correcting The code scheme is illustrated as system uses th sam alphabet as follows the Single channel ARQ system 1c2c3c4c5c6c7clc2c3c4c5c6c7clc2c3c4c5c6c7c1 Idle 1000001111111110000011111111100000111111111 where c ar xtra error correcting bits A steady idling cannot be decoded sinc th decoder has no error correcting bits Errors are displayed with the underline character _ Page 25 SI ARQ F
46. nd RS232 serial output POWER Switches on power of the W 4010 2 2 LED FUNCTIONS LED Function SYNCH Indicates phase selection PHASING Indicates phase selection for SITOR ARQ system TRAFFIC Indicates that data is being received by the microprocessor ERROR Data being received by microprocessor does not meet specification selected by mode RQ Indicates reception of REQUEST cycles IDLE Indicates reception of a IDLE bit pattern ie just maintaining synchronisation with the other end of of the link B IN Indicates reception of mark tone Y IN Indicates reception of space tone A OUT Indicates serial RS232 high level output Z OUT Indicates serial RS232 low level output 2 3 FILTER CONTROL The model W 4010 has a continuously variable bandpass filter which is independent of the baud rate or shift thereby allowing optimal signal filtering This filter OR Rexrs the operator many advantages The variable width bandpass filter is similar to the quartz filter used in shortwave receivers However the W 4010 variable width bandpass filter differs in two ways 1 The bandwidth is fully adjustable from 10 Hz to 2300 Hz The advantage is that the bandwidth can be optimally adjusted for all received shifts 2 The W 4010 bandpass filter has an attenuation of over 27 dB when the input frequency xceeds the filter corner frequencies by more Page 6 filter in the rec
47. ng the receiving the second transmission following stations one is the collective 35 bits after the first Only mode which transmits to many error free characters reach the stations the other is the output If both characters have selective mode which transmits to errors then the special character only one station This mode _ is used to indicate error consists of a continuous 100 baud recognition Page 15 BAUDOT AUTO Fl SPEED CHECK F2 AUTO MODE F3 BAUDRATE SLECTOR F4 FORWARD SEQUENCE F4 F3 REVERSE SEQUENCE Displays the baud rate Automatic synchronization Selects the fixed standard Baud rates go to next operating mode go to previous operating mode The BAUDOT AUTO mode permits full automatic reception of stations transmitting baudot at standard Baud rates of 45 50 57 75 and 100 Baud After tuning has the been finished the software determines if the signal is a Baudot signal If so the software shows the baudrate and polarity on video status line and character output is enabled However if after ten measurements no positive results can be optained an error message will be displayed Additionally the F2 key can be used to manually change the Baud rate The key BU ZI can also be used here to change among the character cases but only after the first characters have appeared The Baudot code is the most widely used code due t
48. o the large installed base OE teletype machines The Baudot code is the code described in ITA No 2 in which each character has only one start bit and 1 1 5 or 2 stop bits Si ahaa E Si Sh 5 data bits Stop bit with mark polarity Start bit with space polarity Every Baudot character has a length of 7 7 5 or 8 bits Baudot is an asynchronous code which means a character can be transmitted at any time by itself If the Baudot Auto mode is used the number of stop bits as well as standard baud rates are recognized The Baudot Variable mode Can be used to receive stations with non standard Baud rates BAUDOT VARIABLE Displays the baud rate Selects ITA 2 Cyrillic or Greek Selects the 32 possible different bit inversion patterns go to next operating mode go to previous operating mode F1 SPEED CHECK F2 ALPHABET SELECTOR F3 BITINVERSION SLECTOR F4 FORWARD SEQUENCE F4 F3 REVERSE SEQUENCE The half automatic BAUDOT VARIABLE mode permits the reception of stations transmitting baudot at any baud rate of 30 to 300 baud After tuning in the station the first thing to do is to measure the baud rate by pushing Fl This measures th rat within 1 Baud Afterwards pushing F2 or F3 will measur th speed and shift exactly Within a short time either the Baudot characters will appear or a message with the hint
49. of 576 is by far the most commonly used value POLARITY POS NEG The key BU ZI selects either positive or negativ image polarity the selected value being displayed in the status line BU ZI can be used to nabl reception on LSB When the picture is finished printing the W 4010 sends form feed to the printer after prints the information WAVECOM W 4010 WEATHER FAX on a row AUTO The Fl key is used to switch between automatic and manual chart reception If switched to automatic the W 4010 chooses the correct values for IOC and RPM as well as starting a print out of the Negative polarity offers advantages for the reception of satellite pictures PHASE LEFT PHASE RIGHT When the print out is started by hand the t E converter has not received h synchronization at the start of the transmission In this case it is easily possible that the picture is not in the middle of the paper After manually starting the W 4010 prints out a scale across the entire width of the paper Page 20 When the mode WEATHER FAX is first Use these keys to position the used the FS value is preset to picture correctly For example 220 In the mode WEATHER FAX when the left margin of the picture CALIBRATION pushing the key F1 is under the symbol lt lt 5 push the also presets the FS value to 220 keys F1 F2 five times The selected The FS value is displayed in the value i
50. perating mode ARQ6 98 is a simplex ARQ system Pressing the F2 key causes signal similar to SITOR ARQ with traffic to be rephased while pressing the blocking and acknowledgement on the F3 key recalls the operating mode same frequency The system uses 200 ARQ6 98 The polarity of the Baud as well as the Sitor alphabet received signal is automatically with each block transmitting 6 recognized characters Page 27 AUTOSPEC F1 SPEED CHECK Displays the baud rate F2 BAUDRATE SELECTOR Selects Baud rates manually F3 MODE RECALL Redisplay of the mode as well as re synchronization F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode This FEC Broadcast mode has a repetition of the first However standard speed of 68 5 Baud hen there is even parity the econd 5 bits are transmitted The Bauer error correcting code is nverted The Bauer code is capable w s at a synchronous code with 10 bits per of correcting single bit errors a a character The first five bits are haracters with more than one error identical with the ITA No 2 and re displayed with an underline the second five bits are a haracter _ SPREAD 51 EI SPEED CHECK Measure Baud rate F2 BAUD RATE SELECTION Configure Baud rate F3 MODE RECA
51. pose are hereby This intellectual property is disclaimed internationally protected and any duplication without the written The transportation costs for permission of WAVECOM ELEKTRONIK quipment returned to WAVECOM for AG is forbidden and illegal Any repair has to be paid by the unauthorized duplication customer If you do not insure the invalidates all warranty rights and product you are responsible for revokes th licens to use the any loss or damage in transit software 5 5 MANUFACTURER AND ALL EXPORT SALES WAVECOM ELEKTRONIK AG Hammerstrasse 8 CH 8180 Buelach Switzerland Tel 41 1 872 70 60 Fax 41 1 872 70 66 www wavecom ch Page 36 6 ILLUSTRATIONS 6 1 ILLUSTRATION OF THE PROCESSOR BOARD LAYOUT Module selection DIP switch Normal inverted shift jumper normal is the right position Internal external demodulator internal is the left position 2 Amp fuse Jumper selection for larger 8KB NOV RAM Jumper selection for larger system memory of 256 kbit p E Software modules A through E PAO BWNHE ll CENTRONICS za 5 La 4 C B A D E 6 3 2 Page 37 6 2 ILLUSTRATION OF THE CONNECTOR PLACEMENT COAXIAL LOW VOLTAGE INPUT Inner conductor positive 12 to 14 Volts Outer conductor Ground o
52. r negative polarity 5 POLE DIN JACK Pin 1 serial TTL demodulator output Pin 2 ground Pin 3 serial RS 232 V 24 output Pin 4 external demodulator input Pin 5 DTR Data Terminal Ready input RCA JACK 1 Inner conductor audio input from VHF UHF packet radio hot side Outer conductor audio input from VHF UHF packet radio ground side RCA JACK 2 Inner conductor audio input from HF radio hot side Outer conductor audio input from HF radio ground side RCA JACK 3 Inner conductor video output hot side Outer conductor video output ground side a le CENTRONICS DO Core VIDEO REMOTE CONTROL 50 75 T AF INPUT WAVECOM W 4010 Remote Control The new Remote Control of the W 4010 nables th between the decoder and a communication computer PC AT via a serial RS232 interface The commands sent by the computer to the decoder will be interpreted inside the W 4010 and transposed into the equivalent unit settings The PC additionally can receive teletype data via the RS232 interface exhibite them on the monitor and save in a file The well known PC program RADIO MANAGER for WINDOWS of the company SHOC supports all functions automatically The RADIO MANAGER can now remote receiver and decoder what before only was possible with the professional W 4100 The operation of the decoder via the keys is also possible during
53. r turn on A weather picture needs 10 40 minutes and when the next picture starts the LE TRAFFIC will glow as the picture is being printed If it is desired to receive a chart transmission that has already started choose an IOC value usually 576 as well as a drum speed Thereafter push the Fl key A scale will first be printed and this can be used to correctly position the picture by using the PHASE key In case the picture image is in negative i e white on black choose the other sideband and tune in again Weather FAX transmissions are sent in upper sideband USB or FAX Before transmission is started the key synchronization signal the TRAFFIC LED glows the SYNCH LED glows when the transmission begins MANUAL This mode starts the print out by hand For a short time both SYNCH and TRAFFIC LEDs glow thereafter only the traffic LED g m lows The values of IOC and RPM ust however be manually set beforehand If the key Fl ist pushed again the print out is terminated The status line displays AUTO as the mode DRUM SPEED Used to adjust the drum speed RPM during reception by choosing 60 90 or 120 RPM The chosen speed appears in the status line IOC MODUL Used to adjust the Index of Cooperation in German MODUL to either 288 or 576 the selected IOC being displayed in the status line The IOC must be chosen befor the synchronizing tones of 300 amp 675 Hz An IOC
54. ransmit side the speed of drum rotation is called RPM and the speed at which the sensor moves along the length of the drum is called Index of Cooperation IOC On the receive side it is not only necessary to know the RPM and the The transmission of a weather chart has a typical noise a noise which one soon learns to recognize The transmission is accompanied by a certain movement of the tuning display Most stations work with a broad band shift of 400 Hz which causes a larger movement of the display but a few stations use a narrow band shift of 150 Hz with resulting smaller display movement LOC but also when a chart transmission starts and when it ends This information is conveyed by a series of control tones before and after a chart transmission The first tone in the series is a signal of 300 or 675 Hz and gives the IOC value This tone continues for 5 10 seconds and can be used to accurately tune in the receiver Following this th frequencies representing black and white are transmitted alternatively at a rate of 1 2 Hz for a period lasting 30 seconds This part of the tone series conveys the RPM and allows the receiving station to synchronize permitting the image to be printed in the middle of the paper Page 8 Afterwards the transmission of the weather chart commences The received output can be printed on a capable of printing 150 characters per minute After the end
55. ronization automatic polarity recognition ARQ6 90 Baud rate 200 Baud automatic RQ elimination and resynchronization automatic polarity recognition AUTOSPEC Baud rates 68 102 6 and 136 Baud rate variable 30 to 300 Baud automatic polarity recognition SPREAD51 Baud rates 68 102 6 and 136 Baud rate variable 30 to 300 Baud automatic polarity recognition 4 5 SOFTWARE MODULE D Baudrate check fast Baud rate determination typically 1 error IAS Baud rate typically 0 01 error Synchronous bit analysis Capable of analyzing 30 to 300 Baud display of each bit 7 to 96 bit data display automatic re synchronization Asynchronous analysis capable of analyzing 30 to 300 Baud start stop analysis display of each bit programmable 4 to 21 bit character length 5 MISCELLANEOUS Page 33 TROUBLE SHOOTING Equipment symptom possible cause Equipment shows no function at all Tuning display blinks with no signal Equipment resets arbitrarily No serial or parallel outputs No TTL output Incorrect character output to peripheral equipment Character loss on parallel or serial output interface Tuning display non distinct Tuning display is not capable of showing full deviation Video display is not correct Check power supply and fuse Supply voltage too low minimum of 12 VDC must be a Unstable supply voltage or intermittent contact Push Check if peripheral is
56. rranty neither for equipment period defective components will interconnection nor modification or be repaired or replaced fr of upgrade of its equipment after time charge of sale Wavecom Elektronik AG reserves the right to make No liability to the customer or technical changes and modifications third parties can be taken for to its products at any time without direct or indirect losses lost prior notice profits or other special incidental exemplary or Handbook consequential damages arising out Information in the handbooks may be of the use of or inability to use changed at any time without prior such product Non authorized notice No liability to the modification of the product customer or third parties can be invalidates the warranty This taken for direct or indirect warranty does not include service losses lost profits or other to repair damage from improper special incidental exemplary or installation improper connection consequential damages arising out to peripherals external electrical of errors in the handbook fault accident disaster misuse abuse or modifications to the Software product not approved in writing by The software in WAVECOM decoders WAVECOM All other expressed and is and remains the property of implied warranties for this product WAVECOM ELEKTRONIK AG The customer including the warranties of cannot buy the software but is merchantability and fitness for a given a limited license to use it particular pur
57. rror parameters immediately after free even with strong interference release of data Since noise and interference affect the search for The Morse code is one of the oldest valid parameters it can happen forms of data transmission An that the software restarts After xperienced telegraph operator can adjusting the receiver this can be receive Morse code even under the prevented by pressing the F2 key most difficult conditions For this Experience has shown that best CW reason CW is still widely used reception is obtained when th today Even modern state of the art filter pot is adjusted to 3 o clock circuitry cannot decode Morse as and the level pot to about 9 well as an xperienced operator o clock A considerable increase in Time distortion of the dits dahs decoder performance is obtained by and pauses together with reducing the audio input level to interference generate under 100 mV unrecognizable combinations However the sharp filter the When tuning in a CW signal the LED continuously variable minimum display should move completely to amplitude squelch and the powerful the left Remember tune for the software permit the decoding of relatively low frequency of 800 Hz many CW signals If the display doesn t react then PACKET RADIO AX 25 F1 BAUD RATE SELECTOR Switches between 300 600 or 1200 Baud With 300 Baud audio input 2 is active and with 600 1200 Baud audio input 1 is active
58. rt advance bit usually 7 data bits a parity bit and one or two stop bits Sich 32 3 4h Bi 6s ee Om x Gt Stop bit with mark polarity Parity bit 7 Data bits usually Start bit with space polarity Page 17 CW MORSE Fl ALPHABET SELECTION Set alphabet F2 MODE RECALL Configure new parameters F3 MODE RECALL Restart mode F4 FORWARD SEQUENCE go to next operating mode F4 F3 REVERSE SEQUENCE go to previous operating mode The software for the operating mode touch up the level knob turning it CW MORSE has been completely counter clockwise Once the level rewritten and now automatically knob has been mastered the filter decodes transmissions from 30 to bandwidth can be reduced by turning over 400 characters second The the filter knob clockwise This data low pass filters ar reduces the interference and makes automatically adjusted the adjustment of the level knob corresponding to the measured CW easier If the bandwidth is made speed The software now functions too small the receiver tuning much better with hand send becomes very critical and transmissions difficult Each operator should adjust the bandwidth to that which Remember the software fay St he feels to be the most effective searches for valid keying values position With a little practice checking the validity of these CW signals can b decoded
59. s 1 1 mode Baud rates 86 96 and 200 Baud 4 division channels 1 1 mode Baud rates 172 and 192 Baud rates variable 30 to 300 Change of division channel without data interruption automatic selection of a busy channel automatic repetition cycle recognition and RQ elimination automatic polarity recognition Baud rate 125 Baud Baud rates variable 30 to 300 automatic repetition cycle recognition and RQ elimination Baud rate 100 Baud Baud rates variable 30 to 300 automatic repetition cycle recognition and RQ elimination automatic polarity recognition 4 4 SOFTWARE MODULE C Baud rate check FEC A SI ARO SI FEC SWED ARO fast Baud rate measurements typ 1 error IAS Baud rate typically 0 01 error automatic polarity recognition Baud rates fixed 96 144 and 192 Baud rate variable 30 to 300 Baud automatic polarity recognition programmable 4 5 or 6 bit block length Baud rates 96 144 and 192 Baud rate variable 30 to 300 Baud automatic RQ elimination and resynchronization automatic polarity recognition Baud rates 96 144 and 192 Baud rate variable 30 to 300 Baud automatic polarity recognition Baud rate 100 Baud automatic detection of block length automatic detection of block length switching automatic RQ elimination and resynchronization automatic polarity recognition Page 32 ARQ6 90 Baud rate 200 Baud automatic RQ elimination and resynch
60. s displayed in the status status line If the picture is too line The reaction of the printer far left FS must be reduced if is delayed however with the delay too far cigae FS must be detirmined by size of the printer increased Since the FS value is buffer memorized i only has to be adjusted once If the FS value is c hanged the printer output can be FINE SPEED UP FINE SPEED DOWN The FAX picture is only disturbed for a short time synchronized at the begining of transmission If there is a small FORM FEED ON OFF Form feed on or difference in drum speed and the W off can be selected by using BUZI 4010 the picture will start to and F4 drift in one direction or the PRINTER SELECT A 9 or 24 pin other Thes fin speed FS keys printer can be selected by using can be used to compensate and BUZI and F3 correct this difference EPSON LO 500 EPSON LO 400 EPSON FX 80 STAR NL 10 STAR LC 10 STAR LC 24 BROTHER M1109 SEIKOSHA SL 80AI Centronics GLP II NEC P6 NEC CP6 NEC P6 NEC P7 NEC CP7 EPSON FX 800 Additional hints In the mode WEATHER FAX large ammounts of data have to be processed and therefore the graphic data is output only to the parallel print port and not to serial port The following are to be selected before the TRAFFIC LED glows Drum speed RPM IOC MODUL Printer 9 or 24 pins Polarity pos or neg Adjustments made after t
61. tain the menu to setup the communication parameters The Fl key allows configuring the Baud rate to either 300 600 1200 2400 4800 or 9600 Baud The number of data and stop bits can be adjusted with F2 to either 7 Page 4 data bits 1 stop bit 7 data bits 2 stop bits 8 data bits 1 stop bit 8 data bits 2 stop bits he parity can be adjusted with help of F3 to NO ODD or EVEN he programmed values are stored in a non volatile memory and stay stored even without power By means of Fl F2 and F3 the operator can easily configure the WAVECOM decoder to communicate with any RS 232 equipment EXAMPLE OF A CONNECTION FOR A PC AT w 4010 PC AT DIN Connector 25 POL RS 232 GND 2 7 GND GROUND DATA 3 3 RS 232 INPUT RXD 4 RTS 5 combine CTS 6 DSR 8 DCD DTR 5 20 DTR DTR In order to transfer the data s of level signals the serial interface Tt is necessary to load a terminal 1 9 HOW TO INSTALL THE SOFT Program in a PC With the terminal WARE MODULES Program you can save the data s on a disk Before undertaking any changes in the equipment mak sure the power 1 8 USING AN EXTERNAL is nas RSE DEMODULATOR The EPROM memory chips have an In order to connect an external easily seen indentation on one end demodulator you must first open the When inserting the EPROM this case Locate jumper 3 and ch
62. that the received signal is not a Baudot signal The key BU ZI can also be used here to change among the character cases but only after the first characters have appeared The decoder recognizes whether the character set has two or three Page 16 character cases so that all of them character sets is limited and the can be chosen printer must also be capable of printing the character set Key F2 permits choosing one of the four following character sets ITA Bit inversion is used as a simple 25 Tass Cyrillic Third Shift form of encryption for Baudot Cyrillic and Third Shift Greek Signals Bit inversion is where one Third Shift Cyrillic signals are or more of the 5 bits have been often heard and can be recognized permanently inverted thereby by the continuous switching of the giving 32 different possibilities numbers case The search for the The key F3 permits choosing among correct character set is made these and the bit combination is asier because the complete screen shown in the status line So that display is switched instantly it can be easily seen if the correct combination has been found As the printer output consists only after using F3 the letters numbers of non capital characters the case shift is automatically changed print out of these special to the default ASCII Fl SPEED CHECK
63. the fuse with one of higher rating or with an aluminum foil short since this will damage the equipment further All microprocessors and various peripherals can generate broad band radio frequency interference RFI which may be radiated by the interconnecting cables The WAVECOM equipment is engineered to reduce this RFI to a minimum by utilizing RF chokes on all outputs A metal case is used to shield the circuitry and as a further RFI preventing measure each PCB is individually shielded with copper foil Video monitors and printers also can cause strong RFI Therefore the following precautions can be taken concerning the receiver installation Antenna A poorly installed antenna or receiver feedlin is one cause of interference Interference is seldom present when a long wire antenna installed in the clear together with shielded cabl ar 5 3 SIGNAL INTERFEREMCE susceptible to interference if this is not the case An antenna tuner so called match box can be used to transform the antenna impedance to 50 Ohms HF cabling All the antenna lines inside a house should be run with shielded HF cable AC line interference Often video monitors and other electronic equipment radiate into the AC line and enter the receiver or active antenna via their power supplies This type of interference can be reduced by means of an AC line filter Ground The best ground is the cold water
64. the has been finished it is parameters for the serial port recommended to return the level video interface or weather fax adjustment to its neutral position setup The key F4 must be used to to nabl th reception of very choose ARQ FEC weak ARO signals The level adjustment is not needed with FEC Turn both knobs filter and level signals and is therefore switched fully counter clockwise and look off for this mode Nearby undesired for an ARQ signal The level signals can be nulled out with the adjustment serves as a tuning help filter it can easily be seen on because with it the tuning display the tuning display when the filter Page 14 is optimally adjusted Narrowing transmitted lineend Rq Idle the filter bandwidth is always an repetition This enables advanand FEC signals If this is synchronization without having to not desired then one of these choose FEC selective and FEC modes can be selected LSB or USB collective can be programmed since the software automatically recognizes Sitor is a simplex ARQ system where the signal polarity both stations alternately send on th same frequency The CCIR Rec The BU ZI key switches between RTTY 476 4 defines a period of 450 ms letters numbers should this happen and the two stations are called to be false The switch causes no tage when strong nearby signals or Signal interruption but is only interference disturb the desired ffective when a
65. typ data from th decoder over th remote interface to the PC At the command DATA following has to be noticed after transmission of the command PORTxx 0FFY also the output of the data stopps when switching between PORTXX OFFE to PORTxx ON the output of the data continues if DATA ON has been set befor Page 11 REMOTE CONTROL COMMANDS PORTxx MODE BAUDRATE PRINT POLARITY REPETITION DATA ON OF R R R R R R R R R S S U HG a zx lt HPQOHDPUQU PPD DD DD DD DPD PA PO SI SI SI z xx is the unit s address F Q E Q N Q M2 242 Q M2 342 Q M4 242 Q M4 342 Q N Q6 90 06 98 CIL Y ANALYSIS TOSPEC UDOT MORS P ARQ f D FO FAX EN ANALYSIS CKET RADIO L ARQ ARQ F TO NO IN FO EI OF 11 number in Baud depends on the osen mode R V UR GHT F Page 12 LANGUAGE ITA 2 TASS CYRILLIC 3 SHIFT CY 3 SHIE roc 288 576 60 90 120 24X 18X SCREEN CHANNEL A B E D STATUS Ans RILLIC EK GR h 80 40 AUTO wer TRAFFIC IDL T h Bi SYNC RQ UND Ans cha 0 ERROR EF wer nged data of the analog input 255 0 2 5 VOLT HINTS The switching to JV FAX must only happen in DOS The W 4010 switches t

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