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User Manual
Rev. 1.0- 29/11/05
PTRL NV/3 & RXRL NV/3
4. Unpacking
The system is made up of the
PTRL NV/3
transmitter and the matching
RXRL NV/
3
receiver and is designed to achieve a high-quality radio link for broadcasting and
FM repeaters.
This radio link series operates in a broad range of frequencies, from the UHF up into
the SHF band. While offering the same appearance and basic features, certain internal
components may vary as required to cover the different frequency bands. Normally,
such components are the local oscillator, power RF amplifier, receiver front end and
input and output filters.
This model is designed to operate in the 1400 to 2600 MHz band. This band is
divided into several sub-bands which must be specified on order so the components
can be calibrated appropriately at the factory. The maximum amplitude of each sub-
band is limited to a few tens of MHz, depending on frequency. The equipment may
be set for varying frequencies and powers within each sub-band in the field.
The equipment is digitally controlled and all operating parameters can be programmed
from the front panel or remotely. The alphanumerical display lets you control and fine-
tune modulation, sensitivity and BF output levels, power, as well as other operating
parameters. Such information is brought to same RS232 line that 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
controls or monitoring systems. A three-level password protection system ensures
excellent security and privacy protection, to suit specific user requirements.
As provided for by several international standards, the transmitter incorporates
advanced audio filters on mono and stereo channels as well as a fast-acting
modulation limiter with a setting range from 75 to 170 kHz which may also be disabled.
Input and output BF levels can be fine-tuned throughout a broad range using 0.5dB
steps variable attenuators. The transmitter also features an auxiliary input specifically
designed for RDS or SCA coders. A modulation monitor output enables accurate
external control or lets you use the same high-quality MPX signal processed internally
to control other transmitters or radio links. The equipment is also compatible with
external digital audio coder/decoder systems.
Optional high-quality stereo coder or decoder boards may be installed at the factory
or retrofitted by the customer in the field at a later time, with just basic technical skills
required for installation. The powerful internal software will recognise the new board
and enable its functions.
The last-generation universal switching power supply accepts mains voltages between
95 and 250Vac. A 24V input for trickle-charge backup batteries is also provided.
Summary of Contents for PTRL NV/3
Page 1: ...PTRL NV 3 RXRL NV 3 User Manual Volume 1 Manufactured by Italy...
Page 4: ...PTRL NV 3 RXRL NV 3 ii User Manual Rev 1 0 29 11 05 This page was intentionally left blank...
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...