R.V.R. Elettronica PTRL NV/3 User Manual Download

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PTRL NV/3

& RXRL NV/3

User Manual

Volume 1

Manufactured by

Italy

Summary of Contents for PTRL NV/3

Page 1: ...PTRL NV 3 RXRL NV 3 User Manual Volume 1 Manufactured by Italy...

Page 2: ...29 11 2005 Revision History Date Version Reason Editor 29 11 05 1 0 First Version J H Berti Notification of intended purpose and limitations of product use This product is a FM transmitter intended f...

Page 3: ...C Power Supply 17 5 6 Service and Maintenance 20 6 External Description 21 6 1 Front Panel 21 6 2 Rear Panel 22 7 Technical Specifications 24 7 1 PTRL NV 3 transmitter 24 7 2 RXRL NV 3 Receiver 25 8 O...

Page 4: ...PTRL NV 3 RXRL NV 3 ii User Manual Rev 1 0 29 11 05 This page was intentionally left blank...

Page 5: ...incidental 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...

Page 6: ...ent of 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 ointm...

Page 7: ...can also be used to remote control the transmitter In addition to the serial I O line some signals are also brought to a separate parallel I O port to facilitate interfacing with other analogue contro...

Page 8: ...4 52 User Manual Rev 1 0 29 11 05 PTRL NV 3 RXRL NV 3 This page was intentionally left blank...

Page 9: ...ce the equipment in racks exposed to heavy vibration or magnetic fields such as large size power amplifier transformers to avoid adverse effects on modulation quality Final modulation level is dependa...

Page 10: ...set and confirmed it cannot be retrieved from the unit Basically all parameter settings require the second level password which may be used for standard service requirements The main purpose of the t...

Page 11: ...LR connectors of the receiver If you opt for unbalanced signal drive short input pin 3 to ground and shield to pin 1 and bring signal to pin 2 In this case highest impedance setting will be 5 kOhm ins...

Page 12: ...onsforthisconnectoraretheFM demodulator broadband output or the processed mono signal to achieve a second unbalanceoutputofthistype For output selection please see the figure at the side showing the a...

Page 13: ...V R recommends to choose a nominal peak level for audio modulation between 6 and 11 5 dBm wherever possible The factory setting used for R V R units is a 6dBm reference level To achieve 100 modulatio...

Page 14: ...n distortion will increase significantly so it is a good rule to keep the signal under control to prevent the limiter from kicking in However limiter operation is hardly appreciable when it kicks in r...

Page 15: ...e same level which can be set from 1 5 to 12 dBm in 0 5 dB steps The Broadband Monitor output or the output of the stereo decoder if fitted use a fixed 6dBm level 5 3 5 Functionality of Remote Control...

Page 16: ...put current draw from an external source is limited to 10mA Pins 4 and 9 future expansion 5 3 7 2 Receiver Pins 1 and 5 ground Pin 2 modulation presence signal a low logic state indicates that modulat...

Page 17: ...ovide mono transmission The transmitter is set up for stereo transmission in the event it is necessary All you need to do is select STEREO transmission mode in the MODE menu mentioned above 2 Select M...

Page 18: ...input level reading in this field indicates 10 of maximum modulation or 7 5kHz deviation which is the default setting for the SCA auxiliary channel For the RDS coder a 11 5 dB or 2kHz reading is the...

Page 19: ...and any other auxiliary signals are absent as follows 1 Disconnect all signals from the external stereo coder input and all RDS or SCA signals 2 Select MPX level on the radio link transmitter display...

Page 20: ...adio link transmitters nearby ensure that the return signals from such transmitters to the antenna do not exceed 30dBm in the preset reception band which is typically about 50 MHz Any stronger signals...

Page 21: ...AY LEAD TO DEGRADED PERFORMANCE OR IRREPARABLE DAMAGE TO THE FINAL STAGE SUCH DAMAGE IS NOT COVERED BYWARRANTY 5 5 Operation on Batteries or DC Power Supply Like all R V R radio link systems the pair...

Page 22: ...ated 12V this application requires two such 12V batteries connected in series Use cables with adequate thickness to connect the batteries to each other and to the units Normally 1 sq mm wires will suf...

Page 23: ...10 30 on a yearly basis Maximum current output of charging equipment is estimated at 0 5 1A for PTRL NV 3 and 1 5 2A for RXRL NV 3 when the batteries are nearly flat Please note that trickle charge vo...

Page 24: ...ll need no special maintenance for some time if the indications provided in paragraph INSTALLATION AND OPERATION are observed After a few years continuous duty have the equipment inspected at the fact...

Page 25: ...mands so as to facilitate operation and programming even in the event user is not fully conversant with the instructions provided in the manual Three warning lights provide real time indication of pro...

Page 26: ...stereo composite signal MPX at unbalanced BNC connector Low frequency 20 100kHz auxiliarychannelinputatunbalancedBNCconnector BF modulation output for monitoring and synchronisation of external RDS co...

Page 27: ...buffered monitor output that can be connected internally to obtain an additional MPX output or a broadband modulation output or a mono signal output ABNC type monitor connector for IF Please note tha...

Page 28: ...alk typical 50 dB 400 10000 Hz 40 dB 100 15000 Hz I O lines Alarm RF LF disable Low RF field RS232 for monitoring and control Mains requirements 95 250 Vac 50 60 Hz 22 0 28 0 Vcc Operating temperature...

Page 29: ...300 kHz 35dB typ dF 500 kHz 45dB typ dF 1 0 MHz AM suppression 45 dB Usable input level 90 10dBm 7mV 70mV Sensitivity typical Sin 90dBm 7mV mono S N 60dB Sin 70dBm 70mV stereo IF monitor output 10 7...

Page 30: ...gue port is interfaced with the analogue signals that need to be measured in the transmitter A fast peak rectifier built around IC4 drives the first analogue line AN0 ANA_MUX All audio BF modulation s...

Page 31: ...work made up of resistors and diodes protects them from statics discharges as required by EC regulations Next are four active unit gain separators and two balanced to unbalanced signal converters that...

Page 32: ...me the signal running along the right channel path is sent to a low pass filter which is made up of the circuit section built around IC10 and IC11 that attenuates any frequencies higher than 15kHz for...

Page 33: ...tters of series PTRLxx5 as these incorporate a modulation monitor output the serves the same purpose 8 1 4 Modulated Oscillator Like the oscillator discussed previously this oscillator is made up of a...

Page 34: ...ignal outside this module to protect the final stage from poor antenna adaptation and remove harmonics and spurious content from the output frequency as required by applicable regulations 8 1 6 Power...

Page 35: ...Hz range The following modules may or may not be fitted accordingly Main stabilised power supply Auxiliary power supply Control and display CPU board Local oscillator board LNA FI and FM demodulator b...

Page 36: ...strictly constant duration that are summed up and buffered by TR8 TR9 IC12 At IC12 output the signal is integrated by the filter comprising L18 L20 and amplified by IC13a IC13b allows for amplitude co...

Page 37: ...mote control output Lastly TR4 controls field relay RL1 based on CPU commands 8 2 3 RF Input Filter On radio links in the 1400 2600 range the input filter is a separate module accommodated on the insi...

Page 38: ...cancellation Next are the deemphasis circuits that are controlled by central control circuits and channel low pass filters The pilot frequency cancellation technology enables the use of lower specs fi...

Page 39: ...s are the same Whenever possible care is taken to design software functions for the utmost user friendliness and to ensure consistent operating principles for a soft transition to later versions or ad...

Page 40: ...N the default menu field 00 see menu tree is shown and the system will prompt for a password before displaying any additional data or settings In the event the correct password is not entered for any...

Page 41: ...s just a few critical settings typically factory settings require the use of the 3rd level password 9 3 Default passwords The default passwords set at the factory as are follows Livel 1 P001 Livel 2 P...

Page 42: ...is dependant on password enabled access rights when the matching security levels are enabled Navigating the measurement control menu requires 1st level access rights and the matching password must be...

Page 43: ...PX 52KHz 3 1dB 0 MUTING OFF PASSWORD SETUP 20 6 3 00 6 3 02 01 22 03 23 04 24 05 25 06 26 07 27 09 28 10 40 11 TRANSMITTER MODEL SETUP 28V 12 5V 12 7V ELAPSED TIME MODE PREEMPHASYS SETUP 00 0 0 0 0 0...

Page 44: ...proper operation Soon after completion of the initialisation process the screen displays an indication of whether the internal Stereo Coder is fitted YES NO to save you the trouble of opening the uni...

Page 45: ...rds a correct match will give access to the next security level If the password is wrong or input is cancelled by pressing Esc an invalid password warning appears In this case access is only granted t...

Page 46: ...A vertical bar I on this line indicates 0dB position 9 5 7 Screen 04 Right and left channel levels in dB Thisscreenshowsthecurrentpeaklevelintheleftandrightchannelsignalsexpressed in dB for actual 75k...

Page 47: ...i e 0dB 9 5 10 Screen 07 RH LH auxiliary signal levels and total modulation in dB This screen provides an overview of modulation level in dB for the auxiliary AUX left L right R and total or multiplex...

Page 48: ...follows Vs 12 5 0 3V Vs 12 4V 1 2V Battery voltage is Vbat 27 4V 0 5V when the battery is fully charged When fed from the battery the unit will require a voltage within a 22 to 28V range in order to...

Page 49: ...eries have a minimum output power limit that must not be exceeded 9 6 3 Screen 24 BF input level setting This screen lets you set the sensitivity of BF input channels i e the multiplex right and left...

Page 50: ...y higher level so as to allow for some margin to accommodate peaks for instance to 2 5dB which corresponds to a peak 100kHz deviation Maximum setting allowed is 7 1dB which triggers limitation at over...

Page 51: ...d or the ON OFF state have been changed the system will ask you to confirm the correct password for that level Once changed clearance to the 3rd level remains valid until the display timer times out t...

Page 52: ...m a preset list of the units the microcontroller is compatible with The screen offers a dozen operating frequency ranges in MHz to choose from If selected range does not match the range the unit is ra...

Page 53: ...peak level in the decoded audio signal in the left and right channels expressed in dB for achieved 75kHz modulation The next screen shows the same information in the form of an analogue bar These scr...

Page 54: ...same threshold however the muting function may also be enabled ON or disabled OFF from the setup menu If the threshold is set to the lower limit 99dBm the function will not be triggered 9 9 3 Screens...

Page 55: ...51 52 User Manual Rev 1 0 29 11 05 PTRL NV 3 RXRL NV 3 10 Ensemble View 10 1 PTRL NV 3...

Page 56: ...52 52 User Manual Rev 1 0 29 11 05 PTRL NV 3 RXRL NV 3 10 2 RXRL NV 3...

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