GENERAL DESCRIPTION
The TRP 9500 is a general purpose HF SSB
transceiver designed for maritime applications
covering the frequency range 1.6 - 30 MHz.
The standard version offers simplex and
semiduplex radiotelephone communication in
the maritime mobile bands and is intended for
installation in voluntarily as well as compulsor-
ily fitted vessels. With the optional built-in DSC
and Radiotelex the TRP 9500 forms a inte-
grated communication system ideal for
simplified GMDSS installations. The TRP 9500
can be fitted in the SKANTI COMBRIDGE
communication system for GMDSS.
The TRP9500 consists of a compact Trans-
ceiver Control Unit, a fully remote controlled
Transceiver Unit and an automatic Antenna
Tuning Unit. The Transceiver Control Unit and
the Transceiver Unit may be installed more
than 100 m apart using standard screened
cables. The distance between the Transceiver
Unit and the Antenna Tuning Unit is up
to100m requiring just one coaxial cable con-
nection offering a simplified installation.
Up to 5 Control units are easily connected to
the same transceiver unit increasing the flexi-
bility of the installation.
The Transceiver Control Unit contains all re-
ceiver and transmitter operating controls. It is
fully push-button controlled by means of a
splash-proof keyboard with tactile and audible
feed-back . The LCD-display shows several
information including receive and transmit fre-
quencies, the mode of operation and time of
day. Back-light with dimmer function is in-
cluded for both LCD-display and keyboard to
ease operation in any light condition. Mode,
receive and transmit frequency set-ups can be
stored and recalled directly from keyboard or
used in conjunction with the 10 scan programs.
Sweeping of a selected frequency range is
also possible with the sweep function.
Where required by authorities transmitter fre-
quencies can be preprogrammed into a PROM
allowing transmission only on these frequen-
cies. The compact Transceiver Control Unit is
easily installed horizontally as well as vertically
and with the optional rotatable wedge tilted to
fit any installation.
The Transceiver Unit contains all receiver and
transmitter circuitry and all connections for ex-
ternal equipment. The standard equipment
has a built-in two-tone alarm generator and
single key selection of 2182kHz. A squelch
circuit, an low noise RF-amplifier and RF-atte-
nuator are also included. The transceiver is
fully synthesized and the receiver may be
tuned in selectable steps of 1kHz, 100Hz and
10Hz.
The fully protected solid state 500W Power
Amplifier, cooled by forced convection, mat-
ches a 50 ohms antenna system, but is
normally used in connection with the Antenna
Tuning Unit.
In the standard version, the transmitter covers
the marine bands between 1.6 to 30MHz, but
an optional PA-filter is available which give
continuous coverage of the frequency range
1.6 to 30MHz.
The microprocessor controlled Antenna Tun-
ing Unit tunes to automatically all antennas
between 7 and 18 meters and requires no
presetting at the installation. The typical tune
time is reduced to 0.5s.
The TRP 9500 is designed for 24V DC oper-
ation but will operate on the wide supply
voltage range 10.8V - 41.6V DC. Mains oper-
ation is possible with the optional AC-power
supply.
The built-in test facilities and easy-to-replace
module design of the TRP 9500 simplifies the
service concept.
GENERAL DESCRIPTION INTRODUCTION
TRP 9500 TECHNICAL MANUAL 1-3