Operation - Kenwood TM-201B Instruction Manual

4. OPERATION
@ RECEPTION
© SQUELCH control
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When power and antenna connections are complete, set the controls and swit-
ches as follows:
'am FM TRANSCEIVER
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® O® ® Connect microphone
After verifing the initial setup of controls and switches, proceed as follows:
(1) Turn the POWER/VOL control clockwise to turn on power. The indicators
on the display light to show the transceiver is operating
As the POWER/VOL control is turned clockwise, either noise or a QSO is
heard.
To eliminate the no-signal noise, use the SQUELCH control. For SQUELCH
control operation, refer to next explanation.
Tune to the desired frequency using the MAIN DIAL.
(2
(3
(4)
To eliminate receiver noise during no-signal periods, slowly adjust the squelch
clockwise until the noise just disappears, and the BUSY indicator goes off
(threshold point).
When a signal is received, the squelch will open, the BUSY indicator will light
and the speaker will operate.
The SQUELCH control is also used for scan operation control. If the signal is
weak or fades during mobile operation, readjust the squelch for constant
reception.
@ TRANSMISSION
© Transmitter precautions
° HI/LOW power switch
m= _Hi
-— Low
To transmit, first select the desired frequency to be used and see whether it is
busy or not. If it is not busy, simply depress the mic PTT switch for transmis-
sion. The ON AIR indicator lights.
1) The TM-201B antenna impedance is 50 ohms. Be sure to use only an
antenna of 50 ohms impedance.
2) Check the intended transmit frequency before operating to prevent in-
terterence with other stations.
3) Pressing the microphone PTT switch places the transceiver in transmit
mode; the ON AIR indicator will light and the LED bar meter shows
transmitter power. Recommended talk distance to the microphone is ap-
proximately 5 cm.
In local QSO's can be enjoyed with less interference to others and with less
power consumption by reducing the RF output power. This is accomplished by
depressing the HI/LOW switch, which reduces power from 45 W to approx.
5 W. The power indication will drop to approximately ''2~4'' on the meter.