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User Manual
Rev. 1.0 - 29/11/05
PTRL NV/3 & RXRL NV/3
The receiver features two push-pull MPX outputs at two different BNC connectors. These
outputs may be used to drive two different transmitters separately, bearing in mind that
one of the two connectors will feature a phase-inverted signal. Or the two outputs may be
used for a balanced connection.
A 50-ohm (RG58) cable is recommended for connections to BNC inputs/outputs up to
few metres in length; for distances longer than a few dozen metres, you may also use 75-
ohm (RG59) or 92-ohm (RG62) cable.
The auxiliary channel connector is a female BNC connector with grounded shield, like the
receiver "MONITOR" connector.
With the appropriate internal setting, you may bring the MPX signal to the MONITOR
connector to obtain a third MPX signal output; other options for this connector are the FM
demodulator broadband output or the processed mono signal to achieve a second,
unbalance output of this type.
For output selection, please see the figure at the side showing the audio output board
with the selection jumpers and the three different settings available.
Detail of receiver mainboard with setup jumpers
5.3.2 Preemphasis
The low-frequency audio signals of mono and stereo channels need to be appropriately
preemphasized. Standard preemphasis is 50 and 75 µs, factory setting usually is 50
µs. Factory setting is the standard preemphasis used in all European countries; ensure
that it meets local requirements. FCC standards in use in North America require 75
µs preemphasis.
If you need to change factory setting, enter the new setting from the transmitter setup
menu.The same is true for the receiver. The preemphasis/deemphasis network will
affect the Mono and Stereo input or output channels, but not the MPX or broadband
outputs.
Summary of Contents for PTRL NV/3
Page 1: ...PTRL NV 3 RXRL NV 3 User Manual Volume 1 Manufactured by Italy...
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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 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...