Sommerkamp TS-664S, Инструкция по эксплуатации

Страница: 4 / 18

GENERAL DESCRIPTION
Your SOMMERKAMP TS-664S transceiver has been désignée! for continous
heavy duty mobile and base station application.
It сап be operated with a microphone and internal speaker or handset, speaker/
microphone combination, telephoneset incorporating automatic voice operated
transm it/receive switching, external sélective calling with automatic answer­
back and many more.
GENERAL
The transceiver is designed to operate from 12 Voit DC powersupply as a
base or mobile station. It’s straght forward 64 channel capability allows it to
operate on any channel within 26.965. and 27.595 MHz.
RECEIVER SECTION
The receiver section is designed to receive amplitude modulated (AM/A3)
signais in the 26.965 to 27.595 MHZ. (11 meter) citizens band .
The unique combination of low noise Field E ffect Transistor (FET), double
conversion, a combination of mechanical ceramic, and L/C filte rs , fui ly auto­
matic noise lim ite r (ANL) and a h ifi quality speaker am plifier w ill give you
exceptional réception quality in this fine piece of equipment.
In addition, the above combination of the latest technology provides you with
a sensitivity and unwanted signal rejection and noise suppression available
previously only in space and m ilita ry communication equipment.
The power supply of the receiver RF. IF. and oscillator section is stabilized
by an extreme sharp cu t-o ff Zener diode to obtain the high sensitivity and
unwanted signai rejection. The fu ily automatic sériés gâte noise limiter, which
v irtu a lly cuts o ff the audio output during ignition noise puises, is defeatable
to make even the weakest signal audible which otherwise would be eut off
by the threshold level of the ANL switching diode.
The high squelch sensitivity is achieved by using a seperate squelch detector
and switching c ircu it with a carefully balanced hystérésis. The trans-
formerless h ifi quality audio power am plifier w ill drive any load between 8
ohms and indefininite such as internai speaker or external speaker/microphone
or headset combinations having the above impédances.
The meter indicates the field strength during réception of a signal.
— 3