TEX2500LCD - RVR Elettronica SpA Documentation Server
Contents
1. PORK 40 KHZ peak CCIR weighted 50 pS de emphasis S B LEE Frequency Response POH KH better than 0 5 dB typical 0 2 Transient intermodulation distortion Measured with a 3 18 kHz square wave and a 15 kHz sine wave at 75 kHz FM lt 0 1 typical 0 05 Composite S N FM Ratio RMS 75 kHz peak HPF 20Hz no LPF 50 uS de emphasis B 78 typical 83 Frequency Response POH 8K BO RE NEE ETC E a EE RE NK EC HS 30Hz 53kHz dB gt 50 dB typical 60 Stereo S N FM Ratio RMS 75 kHz peak HPF 20Hz LPF 23 kHz 50 uS de emphasis L amp R demodulated a gt 73 75 typical KH Qpk 75 kHz peak CCIR weighted 50 uS de emphasis L amp R demodulated dB gt 65 dB Po Qpk 40 kHz peak CCIR weighted 50 uS de emphasis L amp R demodulated daB gt 58 dB Frequency Response 30Hz 15kHz dB OS Total Harmonic Distortion THD N 30Hz 15kHz Intermodulation distortion Measured with 1 KHz and 1 3 KHz tones 1 1 ratio modulation at FM 75 kHz Transient intermodulation distortion Measured with a 3 18 kHz square wave and a 15 kHz sine wave at 75 kHz FM lt 0 1 typical 0 05 Stereo separation Jo O B gt 50 typical 55 Main Sub Ratio 30Hz 15kHz dB gt 40 typical 45 Frequency response 40kHz 100kHz dB OS Crosstalk to main or to stereo channel RMS ref 75 kHz peak no HPF LPF OuS de emphasis with 67 kHz tone on SCA input _ 7 5kHz2. User Manual GREEN 31 RS232 32 12C BUS 33 LEFT ADJ 34 LEFT 35 FUSE 2 4 5 Connector Pinouts 4 5 1 RS232 Type Female DB9 NC SDA OO d OO P GA Z UO Reserved for future implementations Reserved for future implementations Trimmer for left input level adjustment Left audio channel input XLR connector Mains power supply fuse 4 5 2 Service for factory setting Type Female DB9 NC TX D RX D GND O OO JO Om SS Go bh A NC 4 5 3 Left MONO Right Type Female XLR 2 1 GND R 2 Positive 3 Negative User Manual Internally connected to 6 Internally connected to 4 Internally connected to 8 Internally connected to 7 Rev 1 0 28 09 12 8 30 4 3 4 Remote Type Female DB15 Pin Name 1 Interlock 2 Ext AGC FWD 3 GND 4 SDA IIC 5 VPA Tim 6 FWD Tim T Power Good 8 GND 9 GND 10 Ext AGC RFL 11 SCLIIC 12 IPA Tim 13 RFL Tim 14 On cmd 15 OFF cmd Type IN IN I O ANL OUT ANL OUT DIG OUT IN I O ANL OUT ANL OUT DIG IN DIG IN Rev 1 0 28 09 12 GREENA Purpose Inhibits power if closed to GND Ext signal 1 12V for limitation AGC Ground Serial data for IIC communication PA supply voltage 3 9V Fc Forward power 3 9V F S Indicates activation by switching the normally open contact to ground sect 5 4 1 Ground Ground Ext signal 1 12V for limitation AGC Clock for IIC co
3. Uc NOTE This feature prevents the machine from delivering maximum power as soon as output is enabled from menu 4 or in the event the machine is already set to ON and energised 2 bh Ensure that machine is not in a locked out state Press the ESC key to call up the selection screen Menu 3 Highlight Fnc and press ENTER to confirm and access the appropriate menu menu 4 In the same menu ensure that power limiting is disabled if PWR is set to OFF Le power output is disabled move cursor to PWR Press ENTER and label will switch to ON i e power output enabled Press ESC twice to go back to the default menu menu 1 3 bh Fine tune power setting from menu 2 see description of item 1b until achieving the desired value WARNING Machine is capable of delivering more than rated output power 2500 W however never exceed the specified power rating NOTE If power is set to 0 W in the Power Setup Menu the INTERLOCK OUT contact is activated and any external appliances connected to it are immediately inhibited Next you can review all operating parameters of the machine through the management firmware Normally the machine can run unattended Any alarm condition is handled automatically by the safety system or is signalled by the LED indicators on the panel or by display messages Is NOTE Standard factory settings are output power set to upper limit unless otherwise specified by customer and OFF Us
4. Connections Connect the RF output of the transmitter to the antenna cable or a dummy load capable of dissipating exciter output power To begin with set exciter to minimum output power and switch it off Connect the transmitter INTERLOCK IN input to the matching INTERLOCK OUT output fitted on R V R Elettronica equipment to act as hybrid couplers If your equipment is a different brand identify an equivalent output WARNING Electric shock hazard Never handle the RF output connector when the equipment is powered on and no load is connected Injury or death may result Ensure that the POWER switch on the front panel is set to OFF Connect the mains power cable to the MAINS connector on the rear panel Note The mains must be equipped with adequate ground connection properly connected to the machine This is a pre requisite for ensuring operator safety and correct operation First power on and setup Perform this procedure upon first power up and each time you make changes to the configuration of the transmitter this component is integrated into Note Standard factory settings are RF output power on Pwr ON and regulated output power set to lower limit unless otherwise specified by customer Power on When you have performed all of the connections described in the previous paragraph power on the exciter using the suitable power switch on the front panel User Manual Rev 1 0 28 09 12 11 30 GREENS Pow
5. GREENA BIAS board The main purpose of this board is to control and correct the bias voltage of the RF amplification section MOSFETs It also provides a measure of the total current drawn by the RF modules and incorporates a dedicated circuit for power supply fault reporting Under normal conditions bias voltage is adjusted according to set output power using feedback based on actual output power reading AGC Abnormal conditions affecting bias voltage so as to trigger foldback current limiting are e Reflected output power too high e External AGC signals Ext AGC FWD Ext AGC RFL Temperature too high e Current draw of one RF module too high External Telemetry Interface Board This board provides an I O interface for the CPU with the outside environment All available equipment input and output signals are brought to the REMOTE DB15 connector Also mounted on this board is the INTERLOCK IN BNC connector which can disable device power output When the central pin is closed to ground output power is limited to zero until ground connection is removed Rev 1 0 28 09 12 User Manual ISO 9001 2000 certified since 2000 R V R Elettronica S p A Via del Fonditore 2 J 2c SINS Member of CISQ Federation Zona Industriale Roveri 40138 Bologna Italy AN RINA Za all Zod a Phone 39 051 6010506 Fax 39 051 6011104 del em 9001 2000 Certified Quality System ELETTRONICA e mail info rvr it web
6. Stereo za Switch 2 MPX input impedance ON 50 Q OFF 10 kQ 5 3 Operation 1 Power on the exciter and ensure that the ON light turns on Forward and reflected power readings Menu 1 should appear briefly on the display provided that the exciter is delivering output power Fcc sN Fuz s at AN Men 1 1b To modify power level setting hold down the ENTER button until opening the power setup menu The edit screen will look like this SET MMIII FFwd S AN Men 2 Next to SET indication a bar provides a graphic display of preset output power The filled portion of the bar is proportional to set power level 100 output power Full bar 14 30 Rev 1 0 28 09 12 User Manual GREEN A TEX2500LCD 75 of nominal power 50 output power Half bar 1875W in output mod TEX2500LCD 40 of nominal power 25 output power 1 4 bar 1000W in output The bottom line provides instantaneous power reading in this example 2 47kW falling below 1 6kW the reading back to Waitt As result of hysteresis power up exceeding 1400W the reading back to kWatt press button to increase level press to decrease it When you have achieved the desired level press ENTER to confirm and exit the default menu Please note that the setting is stored automatically in other words if you press ESC or do not press any keys before the preset time times out the latest power level set will be retained
7. TEX2500LCD USER MANUAL VOLUME MLL LLL LLL ALARMS es wm B e 4 OFI III Ar KS BROADCAST EQUIPMENT Manufactured by R V R ELETTRONICA S p A Italy ile Name TEX2500LCD_ING_1 0 indb Version 1 0 Date 21 09 2012 Revision History 2710912072 J H Beri TEX2500LCD User Manual Version 1 0 Copyright 2012 R V R Elettronica SpA Via del Fonditore 2 2c 40138 Bologna ltalia Telephone 39 051 6010506 Fax 39 051 6011104 Email info rvr it Web www rvr it All rights reserved Printed and bound in Italy No part of this manual may be reproduced memorized or transmitted in any form or by any means electronic or mechanic including photocopying recording or by any informa tion storage and retrieval system without written permission of the copyright owner Notification of intended purpose and limitations of product use This product is a FM transmitter intended for FM audio broadcasting It utilises operating frequencies not harmonised in the intended countries of use The user must obtain a license before using the product in intended country of use Ensure respective country licensing requirements are complied with Limitations of use can apply in respect of operating freuency transmitter power and or channel spacing Declaration of Conformity Hereby R V R Elettronica SpA declares that this FM transmitter is in compliance with the essential requirements and other rel
8. Trimmer Sensitivity Note 12 14 20 13 dBm Input level for 75 kHz deviation 0 dB SCA1 11 15 8 13 dBm Input level for 7 5 kHz deviation 20 dB SCA2 10 13 8 13 dBm Left 34 33 13 13 dBm Input level for 75 kHz deviation 0 dB Right 17 16 13 13 dBm When setting input sensitivity please consider that the default menu reports instantaneous modulation level and an indicator provides a 75 kHz reading To ensure correct adjustment apply a signal with the same level as user s audio broadcast maximum level and then adjust using the trimmer until instantaneous deviation matches the 75 kHz reading To set subcarrier input levels you may use the same procedure and option x10 available in the Fnc menu With this option modulation level is multiplied by a factor of 10 which means that default menu bar meter reflects a 7 5 kHz deviation A special menu with separate indications of Left and Right channel levels and relating indicators of nominal levels for maximum deviation 75 KHz is provided e Preemphasis d H Fa Bue e 75us User Manual Rev 1 0 28 09 12 13 30 GREENA e Land R XLR type input impedance Switch 1 R XLR input impedance ON 600 Q OFF 10 kQ NO T Switch 2 L XLR input impedance ON 600 Q OFF 10 kQ e MPX input operation mode impedance ol Switch 1 Mode of operation ON Mono OFF
9. Caps Lock through the communication software and send string CODE followed by the 6 character station ID code followed by Enter n NOTE To be treated as valid the code must be made up of 6 alphanumeric characters and must contain no blank spaces if acknowledged as valid code is echoed back to the terminal illegal codes are not echoed 5 5 2 Power UP DOWN Option The Power UP DOWN option modifies the signal receive function for the signals present at the telemetry connector 22 30 Rev 1 0 28 09 12 User Manual GREEN TEX2500LCD RF section on off control signals are treated as control signals for RF output power level to allow for UP DOWN setting The UP or DOWN command is provided by switching the corresponding signal at the connector to ground for at least 500mS pin features internal pull up to power supply Configuration of DB15F telemetry connector Remote Pin Standard function Power UP DOWN function 14 On cmd Up cmd Enables RF output power Increases RF output power 15 Off cmd Down cmd Disables RF output powerDecreases RF output power User Manual Module identification GREEN A TEX2500LCD is made up of several modules connected through connectors to facilitate maintenance and replacement if needed 6 1 Top view TEX2500LCD The figure below shows a top view of the equipment and component locations 9 Figure 6 1 BIAS board Low pass filter board PS Filter boar
10. FM deviation dB gt 75 typical 78 o O OE RMS ref 75 kHz peak no HPF LPF OuS de emphasis with 92 kHz tone on SCA input 7 5kHz FM deviation dB gt 78 typical 80 MPX balanced Left PO Connector ER pType balanced or externally unbalanced a E T OK GOO tint Level Adjust Bu BoB k EB ek E i yO o o a Comet S RE pType balanced or externally unbalanced impedance T Kr GOD tpt bevel Bua BtoB DO G ST BS k PB EENEG MPXunbalanced RDS Connector BNC pType unbalanced pf timpedance Ohm KO SO pint evel Adjust BB to 1S a O ZB IL dB PT Po BNC O Oo y SCA RDS E BNC hm Type S o baane Eef O T pde y So KT LL pu Level Adjust Bo Bo O BT a O Po RF Output Connector EA impedance Dm 5 E k LBE Monitor Connector BNET impedance om 5 E tpt evel O B apo E a Connector BNET impedance O Kk E k tpt evel pp tT Mi Monitor Connector Cf tipedace O O tpt evel gaa Tee breck Connector BNET Po Service Connector BF O ______ Remote interface Connector tc U _ PAC Apparent Power Consumption VA a Active Power Consumption WT Power Factor RE EE Connector Terminal Block pC Power input PE Supply Vottage N E Le gt DC Current ADC fo PO Matis LL External fuse E ZS T 10x38 mm Po Onservices TT External fuse F 3 15 T 5x20 mm Po On PA Supply internal fuses E 28 A 10x 38mm On Driv
11. Rev 1 0 28 09 12 User Manual GREEN A TEX2500LCD 5 4 2 Power Menu Pwr 5 4 3 This screen holds all readings related to equipment output power bEud Ze Kid kfl 12 WV Menu 5 Fwd Forward power reading PI Reflected power reading Note that these are readings rather than settings and cannot be edited note the empty triangle To change power setting go to the default menu as outlined earlier Power Amplifier P A Menu This screen is made up of four lines that can be scrolled using the and buttons and shows the readings relating to final power stage Pl Ss a ee Las so Ett sf Tmbs Wee LJ lk Menu 6 Note that these are readings rather than settings and cannot be edited note the empty arrow VPA Voltage supplied by amplifier module IPA Current draw of amplifier module Eft Efficiency based on ratio of forward power to amplifier module power in percent FWD PWR Vpa x Ipa Tmp Equipment internal temperature reading User Manual Rev 1 0 28 09 12 19 30 RR GREEN 4 4 Setup Menu Set This menu lets you view and set operating frequency FFT OG HD MHz Menu 7 F1 Operating frequency setup Set a new frequency value and then press the ENTER button to confirm your selection the exciter unlocks from current frequency the LOCK LED turns off and will lock to the new operating frequency LOCK turns back on again If you press ESC or let the preset time time out
12. built using LD MOS technology RF modules are fed by the switching power supply via the Bias board The splitter splits the incoming power input signal equally to all RF modules The combiner combines the power output signals available at module outputs to obtain total amplifier power Splitter amplifiers and combiner have been designed to sum amplifier output power signals in phase so as to keep unbalance and power dissipation to a minimum The whole RF section is mounted on a finned heat sink with fan cooling LPF Board This board incorporates a low pass filter to keep amplifier harmonics within permissible limits as specified by international standards A directional coupler is provided at filter output to measure forward and reflected RF output power power readings are relayed to the Interface and Bias boards to enable processing and display The LPF board incorporates an RF output having a level about 60 dB lower than output level which is brought to a BNC connector This provides a convenient test point to check carrier characteristics but does not ensure accurate assessment of higher harmonics The filter also has a High Pass Filter section that sends the third harmonic generated by the final stage to a termination 50 Ohm 250 W mounted near the driver this stratagem helps to maintain a sufficiently high efficiency even in case of presence of SWR in antenna User Manual Rev 1 0 28 09 12 29 30 7 9 30 30
13. http www rvr it The RVR Logo and others referenced RVR products and services are trademarks of RVR Elettronica S p A in Italy other countries or both RVR 1998 all rights reserved All other trademarks trade names or logos used are property of their respective owners
14. the previous frequency setting is retained 5 4 5 Miscellaneous Menu Mix This menu lets you set equipment address in an IC bus serial connection FIIL Gleis Menu 8 Lic lC address setting The IC network address becomes significant when the exciter is connected in an RVR transmission system that uses this protocol Do not change it unless strictly required 5 4 6 Version Menu Vrs This screen holds equipment version release information kkel SSR HSHH Dat el ab t Tab TEsL 123456 Menu 9 Note that these are readings rather than settings and cannot be edited note the empty arrow Rel Firmware release information Dat Release date Tab Shows table loaded in the memory 20 30 Rev 1 0 28 09 12 User Manual GREEN TEX2500LCD 5 4 7 Channels Menu L amp R Right and left channel input levels are displayed as horizontal bars as shown in the figure below The bar meter reflects the level corresponding to a 100 deviation for each channel and provides a convenient reference when setting audio channel input levels PL III F c Menu 10 L Left channel Vmeter R Right channel Vmeter 5 5 Optional functions Arange of options is available for the product to add certain functions and or modify existing functions Outlined below are the functions available at the moment which must be specified on order 5 5 1 FSK option The FSK function generates periodic carrier frequency shifts to gen
15. 250W to 2625W in case of TEX2500LCD outside these limits the equipment is able to work properly but can not guarantee an efficiency of 68 This transmitter incorporate a low pass filter to Keep harmonics below the limits provided for by international standards CCIR FCC or ETSI and can be connected directly to the antenna Two major features of TEX2500LCD is compact design and user friendliness Another key feature is its modular concept design the different functions are performed by modules with most connections achieved through male and female connectors or through flat cables terminated by connectors This design facilitates maintenance and module replacement The RF power section of TEX2500LCD uses four LD MOSFET modules delivering up to 800W output power each User Manual Rev 1 0 28 09 12 3 30 4 30 GREENA Operating frequency stability is ensured by a temperature compensated reference oscillator and is maintained by a PLL Phase Locked Loop system The transmitter will go into frequency lock within 30 seconds after power on TEX2500LCD can operate throughout the frequency bank with no need for calibration or set up An LCD on the front panel and a push button panel provide for user interfacing with the microprocessor control system which implements the following features e Output power setup e Working frequency setup e Power output enable disable e User selectable threshold settings for output po
16. d Panel board FAN1 Power supply units Power Factor Surge Protection board Main Board 10 FAN2 11 Driver Board amp Temperature Measure Board 12 Splitter board 13 RF modules 14 Fuse board 24 30 Rev 1 0 28 09 12 User Manual GREENA TEX2500LCD 6 2 Bottom view TEX2500LCD Figure 6 2 below shows a bottom view of the equipment and component locations Figure 6 2 1 FAN2 2 Telemetry board 3 Surge Protection board 4 Service Power supply 5 Interface board 6 PS LED board User Manual Rev 1 0 28 09 12 GREENA Working Principles The figures below provide an overview of TEX2500LCD fig 7 1 modules and connections R F 4XREF 4XRF R F OUTPUT LPF DRIVER km SPLITTER 4 RF MODULES 4 COMBINER gt DIRECT COUPL gt INPUT AUDIO RDS MAIN BOARD FUSE BOARD FWD PWR RFL PWR 4 X VPA 46VDC BIAS INTERFACE cm PANEL VOLTAGE REG y 4 X 46VDC PS ALARM PURE TELEMETRY keng PROT cb gt POWER SUPPLY LED CARD INTERFACE Figura 7 1 Following is a brief description of the different module functions all diagrams and board layout diagrams are included in the Technical Schedule Vol 2 7 1 Power supply The TEX2500LCD power supply sections is made up of a surge protection module and two power supply units 1 Surge Protection Surge Protection board protects machine from eventual unexpected variations of the ma
17. dated for any reason whatsoever without prior notice The warranty will become null and void in the event the product enclosure is opened the product is physically damaged is repaired by unauthorised persons or is used for purposes other than its intended use as well as in the event of improper use unauthorised changes or neglect In the event a defect is found follow this procedure 1 Contact the seller or distributor who sold the equipment provide a description of the problem or malfunction for the event a quick fix is available Sellers and Distributors can provide the necessary information to troubleshoot the most frequently encountered problems Normally Sellers and Distributors can offer a faster repair service than the Manufacturer would Please note that Sellers can pinpoint problems due to wrong installation 2 If your Seller cannot help you contact R V R Elettronica S p A and describe the problem if our staff deems it appropriate you will receive an authorisation to return the equipment along with suitable instructions 3 When you have received the authorisation you may return the unit Pack the unit carefully before shipment use the original packaging whenever possible and seal the package perfectly The customer bears all risks of loss i e R V R shall not be liable for loss or damage until the package reaches the R V R factory For this reason we recommend insuring the goods for their full value Returns mus
18. e Carrier generation e Modulation Both measurements are adequately processed and sent to the interface board that controls the protection modules and relays the signals to the CPU board to enable readings to be displayed Audio input section The audio input section accommodates the circuitry that performs the following tasks e Input impedance selection e 15 kHz filtering for R and L channels e Stereophonic coding e Preemphasis e Mono MPX and SCA channel mixing e Clipper limits modulating signal level so that frequency deviation never exceeds 75kKHz e Modulating signal measurement PLL VCO section This section of the board generates the modulated radiofrequency signal It is based on a PLL architecture that includes an MB15E06 integrated circuit Rev 1 0 28 09 12 User Manual GREEN TEX2500LCD 7 9 7 6 L I Driver Board This section accommodates a BFG35 and a MRFE6S9060 transistor that preamplifies the RF signal before it is relayed to the final power amplifier When the exciter is placed into stand by mode the driver is inhibited too By entering with 5dBm it is able to deliver up to 32 W for TEX2500LCD Power amplifier The RF power amplification section consists in several power modules four on the TEX2500LCD coupled through a Wilkinson splitter and combiner using strip line technology Each RF module of the TEX2500LCD provides 800 W rated power using a single active element
19. ed for future implementations Pilot tone trimmer Phase trimmer Tone output BNC connector may be used to synchronise external devices such as RDS coders Preemphasis dip switch provides two settings 50 or 75 us Preemphasis affects the right and left inputs in stereo mode and the mono input MPX inputs are not affected by preemphasis setting Dip switch used to select transmission mode STEREO or MONO and MPX input impedance 50 Q or 10 KQ BNC connector for SCA2 input BNC connector for SCA1 input Unbalanced MPX input BNC connector Trimmer for SCA2 input level adjustment Trimmer for MPX input level adjustment Trimmer for SCA1 input level adjustment Trimmer for right input level adjustment Right audio channel input XLR connector Dip switch used to select balanced audio input impedance 600 Q or 10 KQ Connectors for 230 V 15 50 60 Hz mains power supply Mains power supply fuse Reserved for future implementations RF output connector 7 8 Interlock output BNC connector when the transmitter goes into stand by mode the normally floating central conductor is switched to ground DB9 connector for factory setting Interlock input BNC connector the exciter is forced in stand by mode when the inner conductor is grounded Trimmer to set output power limitation according to FWD fold input Trimmer to set output power limitation according to RFL fold input Reserved for future implementations DB15 telemetry connector
20. er Manual Rev 1 0 28 09 12 15 30 GREENA 5 4 Management Firmware The machine features an LCD with two lines by 16 characters that displays a set of menus Figure 5 2 below provides an overview of machine menus The symbols listed below appear in the left portion of the display as appropriate Cursor Highlights selected i e accessible menu F Filled arrow Editable parameter marker This symbol appears in menus that take up more than two lines to aid browsing EEE Three empty arrows Parameter is being edited E Empty arrow Current line marker the parameter in this line cannot be edited This symbol appears in menus that take up more than two lines to aid browsing Hod SUNN 2 gt _ SET SIN Fwd 2 4 KW bFwd 2 4 Menu 1 Predefined menu Power Adjustment Menu Fne Pur P A Set Mens Mix Urs L amp R Selection Menu Operation Menu pn DEE 2 4 Rfl 12 Power Menu Upa 24 2 Ipa 1 93 Eff 59 Tmp 27 8 Power Amplifier Menu REI 98 00 MHz Settings Menu PIICs 255 Miscellaneous Menu Rel 62616966 Dat 19 70372004 Tab TEXL 123456 Versions Menu L III i kK III Menu 10 Channels Menu Figure 5 2 When the display is off touching any key will turn on backlighting 16 30 Rev 1 0 28 09 12 User Manual GREEN TEX2500LCD 5 4 1 When the display is on pressing the ESC button from the default menu menu 1 calls up the selection screen menu 3 wh
21. er Supply P Phisical Dimensions Front panel width 483 19 Front panel height mm 132 3HE L Remote connector inputs Anabogicallevel fold ek a E REF fold ise RON puis BEE pO ONOFF Tove S a a ______ Remote connector outputs Alogi level LL DD pf Aalogicatievel RE pf Aralogicatievel PA Pf Deg erg PA PON OFF evel Power Good ___Remote connector others Cs Po Cooling Forced with internal fan a Acoustic Noise PBA ew Rev 1 0 28 09 12 GREENS Quick guide for installation and use This section provides a step by step description of equipment installation and configuration procedure Follow these procedures closely upon first power on and each time any change is made to general configuration such as when a new transmission station is added or the equipment is replaced Once the desired configuration has been set up no more settings are required for normal operation at each power up even after an accidental shutdown the equipment defaults to the parameters set during the initial configuration procedure The topics covered in this section are discussed at greater length in the next sections with detailed descriptions of all hardware and firmware features and capabilities Please see the relevant sections for additional details LE IMPORTANT When configuring and testing the transmitter in which the equipment is integrated be sure to have the Final Test Table supplied with the equip
22. er check Ensure that the ON LED turns on Forward power and modulation readings should appear briefly on the display If the RF output is disabled those readings will be zero When the PLL locks to operating frequency the LOCK LED will turn on 5 2 3 How to enable the RF output Check output power level and set it to maximum level unless it has already been set from the Power Setup menu that you will have accessed by pressing the following sequence of key ESC opens Default Menu gt ENTER hold down for 2 seconds gt SET gt use keys to set bar to upper limit 5 2 4 Output power level control LS IMPORTANT The exciter incorporates Automatic Gain Control AGC and output power is modulated based on the power level set by the user and actual operating conditions such as temperature reflected power and other parameters Please read section 5 3 for more details of RF power modulation Access the Power Setup Menu pressing the following keys in the order ESC opens Default Menu ENTER hold down for 2 seconds Use the keys and in the SET menu to set exciter output power the setting bar at the side of SET provides a graphic indication of power setting please consider that the forward power readout provided on the display FWD xxxx W reflects actual output power reading which may be lower than regulated power supply when Automatic Gain Control is running in power supply limitation mode please read section 5 3 about RF powe
23. erate a Morse coded station ID code Uc NOTE This function ts typically used in the USA The factory setting for frequency shift amplitude is 10KHz and code repetition period is 60 minutes please contact R V R Elettronica if you need different settings whereas station identified may be programmed by the user following the indications provided in section 5 5 1 1 When the FSK option is fitted an FSK submenu is added to the selection menu nc Pur F A Get Mix Urs Lik FSK Menu 11 Press the ENTER key when FSK is highlighted in the selection menu to access the FSK submenu User Manual Rev 1 0 28 09 12 21 30 GREENA OM Lod Bl2345 Menu 12 FSK Enables disables FSK code transmission Cod Shows the Morse code sent normally 5 5 1 1 Changing the ID code User may change the FSK code used as a station identifier at any time This procedure requires e 1 RS232 male female cable e Hyper Terminal interface make sure it has been installed together with Windows or equivalent serial communication software A brief description of the procedure is provided below e Connect the PC serial port COM to the SERVICE connector on the rear panel of TEX2500LCD using a standard Male DB9 Female DB9 serial cable e Power on the exciter e Launch the serial communication software e Set communication parameters as follows Baud Rate 19200 Data Bit 8 Parity None Stop Bit 1 Flow control None e Activate
24. evant provisions of Directive 1999 5 EC CE WX Ra RR Be TEX2500LCD Table of Contents 1 Preliminary Instructions 1 2 Warranty 1 3 First Aid 2 Ss Treatment of electrical shocks 2 3 2 Treatment of electrical Burns 2 4 General Description 3 4 1 Unpacking 3 4 2 Features 3 4 3 Frontal Panel Description 5 4 4 ear Panel Description 6 4 5 Connectors Pinouts T Ap Technical Description 9 5 Quick guide for installation and use 10 SCH Preparation 10 5 2 First power on and setup 11 5 3 Operation 14 5 4 Management Firmware 16 5 5 Optional functions 21 6 Module identification 24 6 1 Top view TEX2500LCD 24 6 2 Bottom view TEX2500LCD 25 7 Working Principles 26 7 1 Power Supply 26 ZZ Intercace Board 2 ZA Panel board 28 ZA Main Board 28 7 5 Driver Board 29 7 6 Power Amplifier 29 Z LPF Board 29 7 8 Bias Board 30 7 9 External Telemetry Interface Board 30 User Manual Rev 1 0 27 09 12 I GREE Nine This page was intentionally left blank ji Rev 1 0 27 09 12 User Manual GREEN TEX2500LCD IMPORTANT The symbol of lightning inside a triangle placed on the product evidences the operations for which is necessary gave it full attention to avoid risk of electric shocks The symbol of exclamation mark inside a triangle placed on the product informs the user about the presence of instructions inside the manual that accompanies the equipment im portant for the efficac
25. ich gives access to all other menus nc Pur F A Get Mix Urs Lick Menu 3 If the temperature alarm is enabled and the alarm threshold is exceeded the following screen will be displayed only if you are in the default screen t HTTENTION tt OUER TEMPERATURE State 1 As soon as operating conditions are restored power output is re enabled with the same Settings in use prior to the alarm condition Under 20kHz no modulation occurs After a preset time of about 5 minutes not editable a NO AUDIO condition is indicated in the main screen but power is not inhibited Mod HO AUDIO uc H li State 2 To gain access to a submenu select menu name name is highlighted by cursor using button or and press the ENTER button To return to the default menu menu 1 simply press ESC again Operation Menu Fnc In this menu you can toggle exciter power output On Off set deviation display mode and the threshold rate for Forward PgD or Reflected PgR Power Good User Manual Rev 1 0 28 09 12 171 30 GREENA To edit an item highlight the appropriate line using the and buttons and then press and hold the ENTER button until the command is accepted This way Pwr setting is toggled between On and Off and Mod setting is toggled between x1 and x10 To edit the Power Good rate simply select item PgD or PgR and edit its value using the UP and DOWN buttons finally press ENTER to confirm FP
26. ins voltage 2 Service This section contains elements that do not regard directly the power supply they are Service transformer Power switch Service fuse 2 Power supply various units supplies an adapted supply to RF power amplifier modules The units that compose power supply are rectifier PFC and switching power supplies 26 30 Rev 1 0 28 09 12 User Manual GREEN A TEX2500LCD 7 1 1 Mains power supply surge protection This module is enclosed in a sealed metal case it features two externally mounted mains fuses and accommodates a bank of surge arresters that protect the machine from any surge events in the power mains Mains voltage is brought from this module to the main Power switch on the front panel which relays it to the service power supply Inside the surge protection module a suitable 24VDC relay controlled via the interface board isolates single line mains voltage to be fed to the power amplifier power supply unit PFC module This way mains power supply to PFC is enabled when these requirements are met e POWER switch on front panel set to ON e No alarm or fault events present e Power output enabled set to ON in FNC operation menu e RF output power set to over OW using the edit mode 7 1 2 PFC unit PFC unit is rectifier that modulates absorbed current so that the wave shape is sinusoide having so 99 power factor PFC can work with input mains voltage at 230 V 15 I
27. ipment is not water resistant Any water entering the enclosure might impair proper operation To prevent the risk of electrical shock or fire do not expose this equipment to rain dripping or moisture Please observe local codes and fire prevention rules when installing and operating this equipment A WARNING This equipment contains exposed live parts involving an electrical shock hazard Always disconnect power supply before removing any covers or other parts of the equipment Ventilation slits and holes are provided to ensure reliable operation and prevent overheating do not obstruct or cover these slits Do not obstruct the ventilation slits under any circumstances The product must not be incorporated in a rack unless adequate ventilation is provided or the manufacturer s instructions are followed closely A WARNING This equipment can radiate radiofrequency energy and if not installed in compliance with manual instructions and applicable regulations may cause interference with radio communications A WARNING This equipment is fitted with earth connections both in the power cord and for the chassis Make sure both are properly connected Operation of this equipment in a residential area may cause radio interference in which case the user may be required to take adequate measures The specifications and data contained herein are provided for information only and are subject to changes without prior notice R V R Elet
28. ment ready at hand throughout the whole procedure the Final Test Table lists all operating parameters as set and tested at the factory 5 1 Preparation 5 1 1 Preliminary checks Unpack the exciter and immediately inspect it for transport damage Ensure that all connectors are in perfect condition The main fuse can be accessed from the outside on the rear panel Extract the fuse carrier with a screwdriver to check its integrity or for replacement if necessary The following fuses are used 2500LC D J Va Main power suppl fig Ri items Ee 35 2x 25A type 10x38 Service power supply fig 6 2 item 32 1x 3 15A type 5x20 Table 5 1 Fuse The mains power supply unit is the full range type and requires no voltage setup Provide for the following applicable to operating tests and putting into service d Single phase 230 15 10 Vac mains power supply with adequate earth connection 10 30 Rev 1 0 28 09 12 User Manual GREEN A TEX2500LCD 5 2 5 2 1 y For operating tests only dummy load with 50 Ohm impedance and adequate capacity 2500W for TEX2500LCD as a minimum d Connection cable kit including e Mains power cable e Coaxial cable with BNC connectors for interlock signal connection between exciter and amplifier e RF cable for output to load antenna 50 Ohm coaxial cable with standard 7 8 connector e Audio cables between transmitter and audio sources
29. mmunication PA supply current 3 9V As Reflected power 3 9V F S A pulse towards ground 500 ms triggers power output A pulse towards ground 500 ms inhibits power output User Manual WA Ra GREENA TEX2500LCD 4 6 Technical Description User Manual Rated output power WR T 2500 Modulation type O Direct carrier frequency modulation Operational Mode Mono Stereo Multiplex AC Supply Voltage Mains input voltage range 230 15 DC Supply Voltage Backup Input Voltage PO Active Power Consumption WR T 3571 Frequency range 87 5 108 Alphanumerical LCD 2 x 16 Overall Efficiency Pt Typical 70 Inputdevie S a TI Front pane eight OSOS panel height TI veraidepth depth Ambient working temperature O O Frequency stability WT from 10 C to 50 C Prevemphasismode So TC S 0 50 CCR 75 FCO O __ Spurious amp harmonic suppression Be IT e 80 typical i Asynchronous AM S N ratio Referred to 100 AM with no de emphasis _ BTS typical 70 i O Referred to 100 AM FM deviation 75 kHz by 400Hz sine without de emphasis daB gt 50 typical60 sd S N FM Ratio RMS 75 kHz peak HPF 20Hz LPF 23 kHz 50 uS de emphasis daB gt 78 typical 83 O Qpk 75 kHz peak CCIR weighted 50 pS de emphasis _ EE OOo S 3 F Frequency programmability From software with 10 kHz steps Modulation capability E 150 Stereo 180 Mono MPX
30. n PFC output there are 350 V of rectified voltage 7 1 3 Switching power supply The two switching power supplies incorporated in this exciter feeds 50 V 60 A and they are includes an input voltage control The output voltage is established by the microprocessor in according to the RF power required The power supply modules are equipped with a current balancing circuit 7 2 Interface board This board performs the following tasks e It uses AC voltage to generate and distribute service power supply over the panel board e It controls and provides interfacing of the mains surge protection module e It controls and provides interfacing of the power amplifier supply module e t processes and provides interfacing of the control signals to from the Bias User Manual Rev 1 0 28 09 12 27130 7 3 7 4 7 4 1 1 4 2 28 30 GREENA Board e t processes and provides interfacing of the control signals to from the Panel Board e tfeeds and operates the cooling fans e tfeeds and controls the LED indicator board Panel board The panel board accommodates the microcontroller that runs equipment firmware and all user interface elements display LEDs keys This board is interfaced with other equipment modules via flat cables and provides for power supply control signals and measurement distribution Main Board The main board performs the following tasks e Audio and SCA input processing
31. or the type of accident Get the victim to a hospital as quickly as possible e Elevate arms and legs if injured Figure 2 e Check for heartbeat Figure 3 if there is no heartbeat begin chest compressions immediately Figure 4 placing your hands in the centre of the victim s chest Figure 5 eg IER Figure 3 Figure 4 Figure 5 e One rescuer give 2 quick rescue breaths after each 15 compressions Two rescuers one rescue breath after each 5 compressions 2 30 Rev 1 0 28 09 12 User Manual GREEN TEX2500LCD 4 1 4 2 General Description TEX2500LCD is a compact FM transmitter manufactured by R V R Elettronica SpA for audio radio broadcasting in the 87 5 to 108 MHz band in 10kHz steps featuring adjustable RF output up to 2500 W respectively under 50 Ohm standard load TEX2500LCD is designed to being contained into a 19 rack box of 3HE Unpacking The package contains E 1 TEX2500LCD m 1 User Manual m 1 Mains power cables The following accessories are also available from Your R V R Dealer e Accessories spare parts and cables Features The overall efficiency of TEX2500LCD is better than 70 across the bandwidth for this reason are part of RVR Green Line family This performance characteristic is guaranteed in a range between 0 25 dB and 3 dB 5 and 50 referred to the nominal power of the equipment for example from 1
32. r supply modulation for more details LS Note Output power may be set using the Pwr OFF control In this condition the output power readout Fwd on the display will read 0 zero the SET bar will reflect any adjustments you make using the keys and provides a graphic indication of how much power supply will be delivered the moment you return to Pwr On state 5 2 5 Changing the Power Good alarm threshold Change Forward Power Good alarm setting PgD from the Fnc menu as desired factory setting is 50 Please read section 5 4 1 for more details 12 30 Rev 1 0 28 09 12 User Manual GREEN A TEX2500LCD 0 2 6 92l Setting equipment IC address Change the IIC address in the MIX Miscellaneous menu as desired factory setting is 01 Please read section 5 4 1 for more details Adjustments and calibration The only manual adjustments are the level adjustments and the audio mode adjustment The rear panel holds the trimmers for all exciter inputs Trimmer identification is printed on the rear panel Input sensitivity can be set within the limits set out in the tables below through the trimmers Input sensitivity in Mono mode Figure 6 2 Sensitivity Note O SCA1 11 15 8 13 dBm Input level for 7 5 kHz deviation 20 dB SCA2 10 13 8 13 dBm MPX 12 14 13 13 dBm Input level for 75 kHz deviation 0 dB 13 13 dBm Input sensitivity in Stereo mode Input Figure 6 2
33. s button to exit a menu Navigation button used to browse menu system and edit parameters Navigation button used to browse menu system and edit parameters Press this button to confirm a modified parameter and open a menu Liquid Crystal Display ON OFF key Air grille Yellow LED Turns on when Power Supply unit is not fed either because PWR OFF was selected via software or power is set to 0 W or due to Power Supply malfunction when this LED turns on it causes the ALARM PS2 LED to come on as well because the two LEDs are connected internally Yellow LED see item 13 User Manual Rev 1 0 28 09 12 5 30 Rear Panel Description GREENS 8 9 1011121314151617 18 19 20 24 25 26 2728 2930 1 R F TEST 2 GSM SLOT IN 3 GSM ANT 4 AIR FLOW 5 10MHz 6 PILOT ADJ 7 PHASE ADJ 8 19 kHz PILOT OUT 9 PREEMPHASIS 10 MODE MPX IMP 11 SCA2 12 SCA1 13 MPX 14 SCA2 ADJ 15 MPX ADJ 16 SCA1 ADJ 17 RIGHT ADJ 18 RIGHT 19 IMPEDANCE 20 MAINS 21 FUSE 1 22 10MHz 23 R F OUTPUT 24 INTERLOCK OUT 25 SERVICE 26 INTERLOCK IN 27 FWD EXT AGC 28 RFL EXT AGC 29 MODEM 30 REMOTE Rev 1 0 28 09 12 Figure 6 2 Output with level 60 dB lower than output power level suitable for modulation monitoring Not suitable for spectrum analysis Reserved for future implementations Reserved for future implementations Air grille Reserv
34. t be sent on a C I F basis PREPAID to the address stated on the authorisation as specified by the R V R Service Manager User Manual Rev 1 0 28 09 12 1 30 GREEN A S Units returned without a return authorisation may be rejected and sent back to the sender e Do not stop chest compressions while giving 4 Be sure to include a detailed report mentioning all artificial breathing problems you have found and copy of your original e Call for medical help as soon as possible invoice to show when the warranty period began with the shipment ae P 3 1 2 Ifthe victim is conscious Please send spare and warranty replacement parts orders to the address provided below Make sure to specify equipment e Cover victim with a blanket model and serial number as well as part description and Try to reassure the victim quantity R V R Elettronica S p A e EE victim s clothing and have him her Via del Fonditore 2 2c 40138 BOLOGNA ITALY e Call for medical help as soon as possible Tel 39 051 6010506 First Ald 3 2 1 Large burns and broken skin All personnel engaged in equipment installation operation l and maintenance must be familiar with first aid procedures e Cover affected area with a clean cloth or and routines linen 3 2 Treatment of electric burns Do not break any blisters that have formed remove any clothing or fabric that is stuck to the skin apply adequate ointment 3 1 Electric shock
35. treatment 3 1 1 If the victim is unconscious e Administer adequate treatment for the type of accident Follow the first aid procedures outlined below a Get the victim to a hospital as quickly as e Lay the victim down on his her back on a firm possible surface ee e Elevate arms and legs if injured the neck and tilt the head backwards to free If medical help is not available within an hour the victim is conscious and is not retching administer a solution of table salt and baking soda one teaspoon of table salt to half teaspoon of baking soda every 250 ml of water the airway system Figure 1 Have the victim slowly drink half a glass of solution for four times during a period of 15 minutes Stop at the first sign of retching Do not administer alcoholic beverages If needed open the victim s mouth and check 3 2 2 Minor burns for breathing e Apply cold notice cold strips of gauze or dress wound with clean cloth Figure 1 If there is no breathing start artificial respiration without delay Figure 2 as follows tilt the head backwards pinch the nostrils seal your mouth around the victim s mouth and give four fast e Do not break any blisters that have formed remove any clothing or fabric that is stuck to the skin apply adequate ointment rescue breaths E If needed have the victim change into clean dry clothing e Administer adequate treatment f
36. tronica S p A disclaims all warranties express or implied While R V R Elettronica S p A attempts to provide accurate information it cannot accept responsibility or liability for any errors or inaccuracies in this manual including the products and the software described herein R V R Elettronica S p A reserves the right to make changes to equipment design and or specifications and to this manual at any time without prior notice e Notice concerning product intended purpose and use limitations This product is a radio transmitter suitable for frequency modulation audio radio broadcasting Its operating frequencies are not harmonised in designated user countries Before operating this equipment user must obtain a licence to use radio spectrum from the competent authority in the designated user country Operating frequency transmitter power and other characteristics of the transmission system are subject to restrictions as specified in the licence 2 Warranty La R V R Elettronica S p A warrants this product to be free from defects in workmanship and its proper operation subject to the limitations set forth in the supplied Terms and Conditions Please read the Terms and Conditions carefully as purchase of the product or acceptance of the order acknowledgement imply acceptance of the Terms and Conditions Forthe latest updated terms and conditions please visit our web site at WWW RVR IT The web site may be modified removed or up
37. uor OH Mod x16 Halle J4 ei FOR T ei Menu 4 Pwr Enables ON or disables OFF exciter power output Mod Modifies modulation display toggles between x1 and x10 In x10 mode instantaneous deviation indication is multiplied by a factor of 10 and the bar meter on the default menu will reflect 7 5 KHz instead of 75 kHz This display mode is convenient when you wish to display low deviation levels such as those caused by pilot tone or subcarriers PgD Modifies Power Good threshold for forward power The Power Good rate is a percent of equipment rated power 2500W for TEX2500LCD not of forward output power This means that this threshold set at 50 will give 1250 W respectively regardless of set power level The Power Good feature enables output power control and reporting When output power drops below set Power Good threshold the equipment changes the state of pin 7 of the DB15 Remote connector located on the rear panel PgR Modifies Power Good threshold for reflected power The Power Good rate is a percent of equipment rated power 250W for TEX2500LCD not of reflected output power This means that this threshold set at 4 respectively will give 10W regardless of set power level The Power Good feature enables output power control and alarm management C NOTE This alarm does not trip any contacts in the DB15 Remote connector and is only available in systems equipped with telemetry 18 30
38. wer alarm Power Good feature e Measurement and display of exciter operating parameters e Communication with external devices such as programming or telemetry systems via RS232 serial interface or IC Four LEDs on the front panel provide the following status indications ON LOCK FOLDBACK and RF MUTE The exciter management firmware is based on a menu system User has four navigation buttons available to browse submenus ESC ed ENTER The rear panel features the mains input connectors as well as audio input connectors and RF output connector telemetry connector protection fuses and two inputs for signals modulated onto subcarriers by suitable external coders such as RDS Radio Data System signals commonly used in Europe Rev 1 0 28 09 12 User Manual Ra Wa Ra GREENA TEX2500LCD 4 3 Frontal Panel Description 1 2 3 4 9 6 7 8 9 MOD TEX2000LIGHT H Aas Gi ototduihobcoar 7 ON LOCK FOLDBACK R F MUTE CONTRAST ESC ENTER 10 DISPLAY 11 POWER 12 AIR FLOW 13 ALARMS PS1 14 ALARMS PS2 Figure 6 1 Green LED Turns on when exciter is powered on Green LED verde Turns on when PLL is locked to operating frequency Yellow LED Turns on when foldback current limiting Automatic Gain Control kicks in Yellow LED Turns on when exciter power output is inhibited by an external interlock signal Display contrast trimmer Press thi
39. y and the maintenance repairs By 1 Preliminary Instructions e General Warnings This equipment should only be operated installed and maintained by trained or qualified personnel who are familiar with risks involved in working on electric and electronic circuits Trained means personnel who have technical knowledge of equipment operation and who are responsible for their own safety and that of other unqualified personnel placed under their Supervision when working on the equipment Qualified means personnel who are trained in and experienced with equipment operation and who are responsible for their own safety and that of other unqualified personnel placed under their supervision when working on the equipment Abee Residual voltage may be present inside the equipment even when the ON OFF switch is set to Off Before servicing the equipment disconnect the power cord or switch off the main power panel and make sure the safety earth connection is connected Some service situations may require inspecting the equipment with live circuits Only trained and qualified personnel may work on the equipment live and shall be assisted by a trained person who shall keep ready to disconnect power supply at need R V R Elettronica S p A shall not be liable for injury to persons or damage to property resulting from improper use or operation by trained untrained and qualified unqualified persons A WARNING The equ
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