Plessey PRC 320/1 - Operating Information

2.4.4 Secure the vehicle rack, as described in
Part 1, Chapter Three, and fit the RT320/1 and
its carrier.
2.4.5 Remove the coaxial link from the rear of
the RT320/1 and interconnect the equipments as
Shown in Fig.3, using the RT320/1 coaxial socket
labelled T/R and the audio socket labelled SKA
for connection to the РУ1511 R.F. INPUT and rear
panel AUDIO connectors respectively. The
interconnecting cables can be supplied in lengths
to suit any installation and those with a minimum
Surplus length should be used. Note that there
are very high r.f. voltages present at the
antenna base and that if an antenna other than
the РУ1516 is used, a well-insulated heavy duty
cable must be used to connect the PV1313 antenna
terminal to the antenna. The RT220/1 can be
powered by its own battery, as shown in Fig.2, or
by the regulated power supply from the PV1518, as
Shown in Fig.3. Іп the former case the battery
should be float-charged by a 28V d.c. charging
unit (DCCU) supplied from the vehicle 28V supply.
2.4.6 Complete the installation by using the
earthing braid to connect the earth terminal on
the rear of the PV1313 and one of the two
earthing screws on the front of the PV1517 to the
vehicle framework.
2.5 For installation other than that shown in Fig.2,
the РУ1511 and PV1515 can be mounted directly on the
РУ1517 and the RT320/1 can be mounted on a
combination of. the РУ1517 and PV1518. In the latter
case the M5 securing Screws are inserted from the
underside of the PV1318 to engage with the threaded
bosses on the underside of the RT220/1 normally used
for attachment to the manpack carrier.
OPERATING INFORMATION
2.6 Set up and tune the equipment as shown in Fig.4.
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