R.V.R. Elettronica TEX300LCD User Manual Download | Manualshive

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TEX300LCD

User Manual

Volume 1

Manufactured by

Italy

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Summary of Contents for TEX300LCD

Page 1: ...TEX300LCD User Manual Volume 1 Manufactured by Italy ...

Page 2: ...und 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 File Name 03_TEX300LCD_ING_1 0 indd Version 1 0 Date 24 02 2006 Revision History Document History Date Version Reason Editor 24 02 2006...

Page 3: ...gs and calibration 6 5 4 Software 7 5 5 Optional Functions 13 6 External Description 16 6 1 Front Panel 16 6 2 Rear Panel 17 6 3 Connectors description 18 7 Technical Specifications 19 7 1 Mechanical characteristics 19 7 2 Electrical characteristics 19 7 3 Spare Parts 21 8 Working Principles 22 8 1 Power Supply 22 8 2 Panel board 22 8 3 Main board 22 8 4 Power Amplifier 23 8 5 Control Board 24 8 6...

Page 4: ...TEX300LCD ii User Manual Rev 1 0 24 02 06 This page was intentionally left blank ...

Page 5: ...tal defects 5 Re shipment costs or insurance of the unit or replacement units parts Any damage to the goods must be reported to the carrier in writing on the shipment receipt Any discrepancy or damage discovered subsequent to delivery shall be reported to R V R Elettronica within 5 five days from delivery date To claim your rights under this warranty you shold follow this procedure 1 Contact the d...

Page 6: ...f electrical Burns 3 2 1 Extensive burned and broken skin Cover area with clean sheet or cloth Do not break blisters remove tissue remove adhered particles of clothing or apply any salve or ointment Treat victim for shock as required Arrange transportation to a hospital as quickly as possible If arms or legs are affected keep them elevated If medical help will not be available within an hour and t...

Page 7: ...an therefore be used as a transmitter connected directly to the antenna Outstanding audio features this device has are low distortion and intermodulation values and the high signal to noise ratio in mono and composite operation Another important feature the TEX300LCD has is its great simplicity of construction and use The TEX300LCD was designed to be modular Its various functions are run from modu...

Page 8: ...ter Communications with outside devices Four LEDs indicate the equipment status and are found on the front panel ON LOCK FOLDBACK and RF MUTE The exciter s management software is based on a menu system The user can navigate between the various submenus by using four push buttons ESC and ENTER On rear panel there are Mains connector audio input and RF output connectors telemetry connector protectio...

Page 9: ...corporated in the VDE base for the mains power supply whereas the second one is on the front panel and inhibits the switching power supply of the machine Connect the RF output of the exciter to the antenna cable or to a fictitious load able to dissipate the power generated by the TEX300LCD WARNING in case the load is not present don t touch the RF output connector during the equipment operation to...

Page 10: ...ing tables Input sensitivity Input Figure 6 2 Trimmer Sensitivity Notes SCA1 RDS 13 16 8 13 dBu SCA2 28 29 8 13 dBu Input level for 7 5 kHz overall deviation 20 dB MPX 14 15 13 13 dBu Left Mono 31 30 13 13 dBu Right 18 17 13 13 dBu Input level for 7 5 kHz overall deviation 0 dB To adjusting the sensitivity level of the inputs keep in mind that the instantaneous modulation level is given in the pre...

Page 11: ...e machine s menus is given in figure 5 1 One of the following symbols may be present on the left side of the display depending on the case Cursor The cursor indentifies the selected menu where you can have access Full arrow The parameter highlighted by the arrow can be modified Questo simbolo è presente nei menù composti da più di due righe come aiuto nello scorrimento del menù Three empty arrows ...

Page 12: ...sired level is reached press ENTER to confirm and exit the predefined menu Note that the set value is stored anyway so if you press ESC or let the timeout go by without pressing a key the power will remain at the last set level The first pressure of a whichever key serves in order to activate the retroillumination when the display is switched off The pressure of ESC button when the display is swit...

Page 13: ...gure 5 1 If the temperature alarm is enabled the power supply will come inhibited in case of alarm threshold overcoming and it will have displayed the following window only in case you are in the predefined screen Status 1 Once restored the normal operation conditions the power supply will come rehabilitated with the same modalities antecedent the alarm If the modulation ran out under 20 kHz for a...

Page 14: ...value instead of 75 kHz This display mode is useful when you want to view low deviation levels such as for example those due to the pilot tone or to the subcarriers PgD Regulation of the Power Good threshold relative to the forward power The percentage value of Power Good is referred to the nominal power of the machine that is 30 W not to the supplied forward power If a value equal to 50 is setted...

Page 15: ...e power setting use the predefined menu as described above 5 4 3 Power Amplifier Menu P A This screen consisting of four lines that can be scrolled with the and buttons shows to the user the measures relating to the final power amplifier of the equipment Menu 6 VPA Visualization of the amplifier module voltages IPA Visualization of the amplifier module current Eff Visualization of the efficiency T...

Page 16: ...s The I2 C network address is important when the exciter is connected to a company s transmission system that envisages use of this protocol We recommend you do not modify it without a good reason 5 4 6 Versions Menu Vrs This screen shows the version and the release date of the software Menu 9 Rel Visualization of the software release Dat Visualization of the date release Tab Visualization of the ...

Page 17: ...e that carried the Radio Identification Code This function is tipically used in the United States By factory the amplitude of the frequency shifts is 10 KHz and the time lag of the code repeat is 60 minutes for values different from these parameters please contact R V R Elettronica SpA As regards the Radio code it can be set by the user following the indications described in chapter 5 5 1 1 The se...

Page 18: ...1 Flow control None Through the communication software activate the Caps Lock key capital send the CODE string followed from the 6 characters of the station code and then confirm pressing Enter The code is considered only if is complete of 6 characters alphanumeric and without spaces In case the code is accepted it comes repeated in echo towards the program in contrary case the echo of the code do...

Page 19: ...06 Configuration of the telemetry DB15F connector Remote Pin Standard Function UP DOWN Power Function 14 On cmd Up cmd Enables RF power supply Increases RFthe Power supply 15 Off cmd Down cmd Disables RF power supply Reduces RFthe Power supply ...

Page 20: ...ED lit when the foldback function is operating automatic reduction of the delivered RF power 5 R F MUTE Yellow LED lit when the exciter s power output is inhibited by an external interlock command 6 CONTRAST Display contrast adjusting trimmer 7 ESC Push button to exit from a menu 8 Push button to move in the menu system and to modify the parameters 9 Push button to move in the menu system and to m...

Page 21: ... ADJ Adjustment trimmer for the Right channel input 18 RIGHT MONO XLR connector balanced Right channel input 19 FUSE BLOCK Fuse carrier Use a screwdriver to access the fuse Contains the general protection fuse rated 8AT 5x20 20 R F TEST POINT RF test output approx 13 dBm wrt the RF output power level 21 MODEM DB9 connector connected to GSM modem 22 I2 C Normally not used or used for customized fun...

Page 22: ...C communication serial data 5 VPA Tlm OUT anal PA power supply voltage 3 9V F S 6 FWD tlm OUT anal Forward power 3 9V F S 7 Power Good OUT digit Open collector enabled whenpower exceeds the set threshold par 5 4 1 8 GND Ground 9 GND Ground 10 Ext AGC RFL IN Ext signal for power limitation AGC 11 SCL IIC I O IIC communication clock 12 IPA Tlm OUT anal PA power supply current 3 9V F S 13 RFL Tlm OUT...

Page 23: ...AM modulation 65dB or lower compared to 100 AM without deemphasis typical 70dB Residual synchronous AM modulation 50dB or lower compared to 100 AM modulation FM 75 kHz at 400Hz without deemphasis typical 60dB AC power supply connector Standard IEC AC power supply 90 260 V 15 Power Factor 0 99 Apparent AC power consumption 600VA Active power consumption 594W Cooling Forced with internal fan Acousti...

Page 24: ...ones 1 1 ratio at 75KHz Transient intermodulation distortion 0 1 typical 0 05 measured with 3 18KHz square wave and 15KHz sinusoidal wave at 75KHz MPX Operations S N FM 80dB typical 85dB compared to 75kHz peak measured in the 20Hz 100kHz band with 50 ms deemphasis RMS detector Amplitude frequency response 0 2dB 30Hz 53Khz 0 5dB 30Hz 100Khz Total Harmonic Distortion THD 0 1 30Hz 53Khz 0 15 30Hz 100...

Page 25: ...re band with 0 ms deemphasis with 67KHz tone on SCA input at 7 5KHz deviation 78 dB typical 80 dB compared to 75kHz peak measured in the entire band with 0 ms deemphasis with 92KHz tone on SCA input at 7 5KHz deviation Auxiliary connections Interlock BNC female connector by grounding the central conductor the transmitter is forced in stand by mode GSM ANT SMA RS232 DB9 female Service DB9 female I2...

Page 26: ...t implements the equipment control software the display and the other components needed to interface with the user The board is connected with the other machine modules both for power supply distribution and for the control and measures 8 3 Main board The main board carries out the following functions Audio and SCA input treatment Generation of carrier frequency Modulation R F amplification Driver...

Page 27: ... amplification up to 300W The amplifier is made in three stages The first is made with one BFG35 the second with one BLF175 and the last with one SD2942 In addiction to the actual RF amplification this circuit carries out the following functions Control of the power level in output depending on the setting Reduction of the power supplied when in presence of high level reflected power Measures of t...

Page 28: ...Excess of reflected power External AGC signals Ext AGC FWD Ext AGC RFL Excess of temperature Excess of absorbed current from the RF module 8 6 Telemetry board This board is designed to inform the user of the equipment operation state All input and output signals are available on the DB15 connector The same board also features the INTERLOCK BNC connector for disabling the device By grounding the ce...

Page 29: ...er through connectors so as to make maintenance and any required module replacement easier 9 1 1 Upper view The figure below shows the equipment upper view with the various components pointed out figure 8 1 1 Main Stereo Coder Card SLMBDTEXLC05 SLCTC30V03 2 Panel Board SL007PC2001A 3 Telemetry Board SLTLMTXLCD03 4 Control RF Modulo Board SL045DR1001 SL045RF1001 5 Power Supply PSL600 ...

Page 30: ...TEX300LCD 26 26 User Manual Rev 1 0 24 02 06 This page was intentionally left blank ...

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