SE-104 / P set / patrol radio set
überarbeitet am 4.9.2010
The P set constructed by Zellweger, Uster, has been introduced as standard set for the infantry radio-equipped patrols; a similar set with higher transmitter power is the P5 set.
The P set (Infantry Patrol set) consists of a transceiver case with a battery compartment (weight 12 kg), a generator case (another 12 kg) with the hand cranked generator and spares and a canvas bag with material for a long distance antenna.
In the transceiver case, the transmitter section is located at the right and the
receiver section at the left side.
The receiver can be powered from a combined LT (1,5V)/ HT (126V) battery or a
hand cranked generator; for transmitting, the hand cranked generator must be used
under all circumstances, a relay prevents the transmitter section to be be powered
from the battery which might be exhausted very soon.
The operation of the transceiver is easier then to supply it with the necessary voltages:
The accessories can be stored in a compartment just below the transceiver chassis: the combined LT / HT battery, the headphones, the hand mike and the throat microphone; the receive / transmit switch as well as the morse key are integrated in the front panel.
The generator is integrated in a case very similar to the transceiver case:
a voltmeter indicates, when the necessary voltages for operation are okay or
if You have to crank with higher speed to generate the heaters / LT voltage of
5,7 V ond the anode / HT voltage of 120 Volts. When the generator cable is
plugged into the socket on the transceiver, it's batteries are switched off.
The set's operation range is 0,5 km in telephony and 2 km in telegraphy mode in a housing area and up to 12 or 15 km from a optimum location on top of a hill.
© 5/2008 Martin Bösch