The TRP 6000 is an SSB Radiotelephone equipment for duplex,
semiduplex and simplex communications in the maritime mobile
bands from 1.6 to 4.5 MHz.
The novel design of the SKANTI TRP 6000 breaks with the
traditional SSB radiotelephone concept. The TRP 6000 is
divided into two units, a handy CONTROL UNIT and a fully
remote controlled TRANSMITTER UNIT (fig. 1.1).
The Control Unit (CU 6000) contains all receiver and
transmitter operating controls and is housed in a
non-metallic, non-magnetic cabinet. This combined with the
small dimensions of the cabinet ensures maximum installation
The transmitter Unit (TU 6400, 400 W or TU 6200, 200 W) is
fully remote controlled and may be installed up to 50 metres
from the Control Unit where most convenient with respect to
antenna lead-in, grounding and the battery connections, thus
reducing the well-known problems of power-loss and radio
frequency interference caused by long antenna- and ground-wires.
The Transmitter Unit is housed in a rugged nylon-coated
steel cabinet and contains the fully solid state linear
power amplifier, the power supply and the automatic tuning
system. Cooling is performed by temperature controlled fans
switched on only under heavy duty operation.
The microprocessor equipped Control Unit contains two
separate frequency synthesizers and two frequency displays
for the receiver and transmitter functions. Frequency
selection is carried out via a common keyboard. A single key
operation instantly selects 2182 kHz operation.
The keyboard permits the operator to program up to 20
channels with his busiest receiving and transmitting
frequency pairs, and to recall each channel with a few key
operations. The TRP 6000 will store the programmed channels
for several years, even when switched off. Where required by
the authorities, the TRP 6000 will contain a
transmitter-frequency PROM with a capacity of up to 80
frequencies. Transmitter keying can only then take place
exclusively on the authorized frequencies programmed into
the PROM. The keyboard permits recall and display of all the
frequencies contained in the PROM.
Due to the all solid state design the TRP 6000 is ready for
operation within seconds after being switched on.
The automatic tuning system ensures optimum antenna matching
under all conditions. This results in maximum RF output
power for reliable short, medium and long range communications.