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PTRL & RXRL LCD

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User Manual

Rev. 1.2 - 31/01/05

10. Functioning principles of the RXRL-LCD

The RXRL-LCD is composed of several modules connected between them with the
help of connectors, with the aim to ease the maintenance and the possible
replacement of modules.

The above description shows the top view of the unit with the indication of the different
components.

[1] IF Card
[2] Telemetry card
[3] Power Amplifier
[4] Front-end VCO Card
[5] Pannel Card
[6] Power supply interface Card

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Содержание PTRL

Страница 1: ...PTRL RXRL LCD User Manual Volume 1 Manufactured by Italy...

Страница 2: ...on Editor 12 01 04 1 0 New Version J Berti 02 06 04 1 1 PTRL LCD Rear Panel Upgrade J Berti 31 01 05 1 2 Added Chapter 11 J Berti Notification of intended purpose and limitations of product use This p...

Страница 3: ...4 Software 19 7 External Description 23 7 1 Front Panel of the PTRL LCD 23 7 2 Rear pannel of the PTRL LCD 24 7 3 Description of the connectors 25 7 4 Front pannel of the RXRL LCD 26 7 5 Rear pannel o...

Страница 4: ...es of the RXRL LCD 37 10 1 Power supply 38 10 2 Power supply interface 38 10 3 Panel card 39 10 4 IF Card 39 10 5 Front End 39 10 6 VCO PLL 40 10 7 Telemetry card 40 11 Procedure for change frequency...

Страница 5: ...lting from improper procedures or practices by untrained unqualified personnel in the handling of this unit Please observe all local codes and fire protection standards in the operations of this unit...

Страница 6: ...PTRL RXRL LCD 2 44 User Manual Rev 1 2 31 01 05 This page was intentionally left blank...

Страница 7: ...ow this procedure 1 Contact the dealer or distributor where you purchased the unit Describe the problem and so that a possible easy solution can be detected Dealers and Distributors are supplied with...

Страница 8: ...a copy of your original invoice establishing the starting date of the warranty Replacement and warranty parts may be ordered from the following address Be sure to include the equipment model and seria...

Страница 9: ...reathing if not breathing begin artificial breathing Figure 3 2 tilt head pinch nostrils make airtight seal four quick full breaths Remember mouth to mouth resuscitation must be commenced as soon as p...

Страница 10: ...ed If medical help will not be available within an hour and the victim is conscious and not vomiting give him a weak solution of salt and soda 1 level teaspoonful of salt and 1 2 level teaspoonful of...

Страница 11: ...distorsion In function of your own requirements it can be configurated for the functioning under the Mono MPX mode that is to say when excluding the stereo coder and when using the left inputs as a mo...

Страница 12: ...working parameters of the transmitter Communication with external devices These functions are implemented for the receiver Display of the modulation Setting of the working frequency Setting of the mu...

Страница 13: ...able and interrupts completely theAC supply of the unit while the second is situated on the front pannel and his action is to inhibit the switching power supply of the unit Connect the RF output of th...

Страница 14: ...s that should be done manually on the PTRL LCD are the regulations of the levels and audio functioning modes On the rear pannel of the unit there is a trimmer for each input of the exciter the silk sc...

Страница 15: ...ce of L R inputs XLR type switch 27 Chap 7 2 Switch 1 Impedance of R XLR ON input 600 OFF 10 k Switch 2 Impedance of L XLR ON input 600 OFF 10 k Functioning modes Impedance of MPX input 8 Chap 7 2 Swi...

Страница 16: ...SC or when the timeout period is passed and no button was pressed the power will remain on the last setted level When you press twice on the ESC button while you are in the predefined menu the followi...

Страница 17: ...is compared to the level of one of the functioning parameters of the unit The result of the comparison is available on the telemetry connector and can be read on the display as O which means open that...

Страница 18: ...ton it will be possible to modify the setted frequency with the UP the frequency increases and DOWN the frequency decreases After a new frequency value was setted press the ENTER button to confirm the...

Страница 19: ...e date to the software release 5 4 7 Channels menu L R This menu works on stereo version units The input levels of the right and left channels are represented by vertical bars as indicated in the foll...

Страница 20: ...PTRL RXRL LCD 16 44 User Manual Rev 1 2 31 01 05 Pagina lasciata intenzionalmente in bianco...

Страница 21: ...ches of the RXRL LCD are in the position 0 off The RXRL LCD has a switch which interrupts completely theAC supply of the unit Connect the RF output of the exciter to the antenna cable Connect the AC c...

Страница 22: ...t Chap 7 5 Trimmer Sensitivity Notes MPX 13 14 20 13 dBm Output level for 2 0 kHz 30 dB of deviation SCA 5 6 8 13 dBm SCA MPX 4 15 8 13 dBm Output level for 7 5 kHz 20 dB of deviation Left Mono MPX 17...

Страница 23: ...lines as an help for the scrolling of the menus When the unit is switched on the LCD display shows the predefined view with the graphical representation of the instantaneous modulation level and the i...

Страница 24: ...on display mode he can switch on or inhibit the muting mode In order to intervene on one of the three keys select the corresponding line with the UP and DOWN buttons and then press and keep the ENTER...

Страница 25: ...LOCK LED lits up On the contrary when you press ESC or when you let the timeout passes by the frequency will remain setted at the last value memorized 6 4 3 Aud menu Aud The levels of the inputs of th...

Страница 26: ...PTRL RXRL LCD 22 44 User Manual Rev 1 2 31 01 05 6 4 5 Versions menu Vrs This view shows the version of the unit and the date to the software release...

Страница 27: ...f the erogated power 5 R F MUTE If it is flashing it indicates that the exciter is not erogating power because it is inhibitted by an external interlock 6 CONTRAST Regulation Trimmer of the contrast o...

Страница 28: ...of the unbalanced MPX input 11 MPX RDSADJ Trimmer for the regulation of the levels of the MPX input 12 RIGHT MONOADJ Trimmer for the regulation of the levels of the Right input 13 RIGHT MONO XLR conn...

Страница 29: ...D 6 Internally connected to 4 7 Internally connected to 8 8 Internally connected to 7 9 NC 7 3 2 Remote Type DB15 female 1 Interlock 2 FWD fold 3 GND 4 SDA IIC Bus 5 VPA Tlm 6 FWD tlm 7 Power Good 8 G...

Страница 30: ...d which means that the input signal has decreased under the defined threshold 6 CONTRAST Regulation Trimmer of the contrast of the display 7 ESC Push button to press to exit from a menu 8 SINISTRA SU...

Страница 31: ...r supply Positive red and negative black 10 REMOTE DB15 connector for the telemetry of the device 11 RS232 DB9 connector for the interface with other devices and for the programmation made by the fact...

Страница 32: ...ND 6 Internally connected to 4 7 Internally connected to 8 8 Internally connected to 7 9 NC 7 6 2 Remote Type DB15 female 1 Interlock 2 FWD fold 3 GND 4 SDA IIC Bus 5 VPA Tlm 6 FWD tlm 7 Power Good 8...

Страница 33: ...ession of the spuries and harmonics Respect or exceed the FCC CCIR typical 75 dB Ability of modulation Respect or exceed the FCC CCIR typical 240khz MPX or Mono 210 KHz Stereo Asynchronous modulationA...

Страница 34: ...tor RMS at 400 Hz Amplitude response frequency 0 3 dB 40 Hz 15 KHz Total armonics distorsion THD 0 08 MPX Functioning Composite FM S N against 75KHz measured in the 40 Hz 75 KHz band with deenphasis 5...

Страница 35: ...l range C C supply 24 V Outputs Mono Right Ouput XLR female type balanced or unbalanced Mono Left Output XLR female type balanced or unbalanced MPX OUT output BNC type unbalanced Output impedance 10 k...

Страница 36: ...requency 0 3 dB 40 Hz 15 KHz Total armonic distorsion 0 4 Remote connections Mute connector BNC type inhibits the power erogation when it is short circuited Serial interface Female DB9 RS232 Telemetry...

Страница 37: ...tween them with the help of connectors with the aim to ease the maintenance and the possible replacement of the modules The above description shows the top view of the unit with the indication of the...

Страница 38: ...to supply the RF stage of the unit The stabilizers for the 5V and 18V continuous voltage generation for the supply of the other circuits of the unit are present on the power supply Please note that t...

Страница 39: ...on the readings and the remote monitorings 9 5 Main card The main card has the following functions Processing of the audio and SCA inputs Generation of the carrier Modulation R F Amplifier Driver The...

Страница 40: ...h provides the elimination of the armonic emissions A directional coupler enables the reading of the direct and forward power of the load such signals are then sent to the monitoring card for the nece...

Страница 41: ...onnected between them with the help of connectors with the aim to ease the maintenance and the possible replacement of modules The above description shows the top view of the unit with the indication...

Страница 42: ...the RF stage of the different electronic boards which compose the unit The power supply of the RXRL LCD is a switching type unit with 5V 18V and 15V main outputs which will be adapted to supply the di...

Страница 43: ...signal coming from a 59 3MHz chrystal oscillator to the other input The signal 10 7MHz obtained from the difference between these two signals is filtered and amplified an once it is processed it is se...

Страница 44: ...e was designed to give indications to the user concerning the functioning status of the unit All the available input and output signals of the unit are indicated on the DB15 connector On the same card...

Страница 45: ...le attenuator for a value dependent from the transmitters output power Having the power approximately of 10W 40dBm regulate the variable attenuator on a value comprised between 63dB to have in input o...

Страница 46: ...2 and verify to obtain the maximum possible level regulating through the compensators situates on the front end card The calibration of the front end compensators will be carried out so as obtain the...

Страница 47: ...z Repeat this operation until that the signal injected from the generator does not achieve the level of 47dBm 1mV or minor in order to optimize the calibration In any case the full scale must be at th...

Страница 48: ...PTRL RXRL LCD 44 44 User Manual Rev 1 2 31 01 05 This page was intentionally left blank...

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