Sommerkamp TS-664S, Инструкция по эксплуатации

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TRANSMITTER &. MODULATOR SECTION:
The tra s m itte r section is designed for continous heavy duty transmission of
amplitude modulated (AM/A3) signais in the 26.965 to 27.595 MHz. (11 meter)
citizens band.
The tra n sm itte r consists of 2 crystal controlled oscillators incorporating 20
crystals. The output of these oscillators are synthesized in a dass B mixer,
followed by a double tuned filte r, Class A B I buffers, and a highly e fficie n t
collector-modulated class C driver and power output stage, coupled by séries
and pi-matching filte rs to the antenna jack.
The modulator consists of an input audio filte r, ALC am plifier integrated pre-
and power am plifier and modulation transformer. This gives you the lowest
possible modulation distortion and up to 100% modulation.
The input is designed for 500 ohm dynamie microphone or 32 ohm speaker/
microphone combination with a 1K ohm resistor in sériés.
RECEIVE/TRANSM IT SWITCHING
The re ce ive /tra n sm it switching is done by a single pole, single throw switch
in the microphone and a combination of NPN and PNP switching transistors.
METER
The combination meter provides you with the following functions:
During receive mode..............it indicates the incoming signal strength.
During transm it mode.......... it indicates the output power.
MOBILE INSTALLATION
Mounting bracket and screws are supplied for mounting the transceiver under-
neath the dashboard. Microphone hanger and screws are also supplied. For
electrica! connection, fir s t make sure that the transceiver is turned off.
Connect the red wire to the ACC terminal of the ignition switch or + terminal
of battery and ground the black wire to the chassis of the rehicle. The black
wire should be grounded as short as possible to minimize noise interférence.
This transceiver is designed for use with the negative ground system.
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