Service Manual

31
Wide
Rotate to CH5
and SQL is set
to level 5 OFF.
Press SK1 or
SK2 to enable
the function.
The channel
spacing is wide
band.
Low frequency
Short press
PTT to switch
frequencies.
Radio
communication
test set
SSG:-121dBm
Antenna
Remote
speaker MIC
jack
SK1
SK2
Adjust the output
signals of SSG to the
squelch level. Rotate
the channel selector
knob to save after the
five-point adjustment
is completed.
SQL level:
-121±1dB
SQL
OFF
Narrow
Long press
PTT (≥1.5s) to
enter narrow
band. Press
SK1 or SK2 to
enable this
function. Short
press PTT to
switch
frequencies.
Radio
communication
test set
SSG:-120dBm
Antenna
Remote
speaker MIC
jack
SK1
SK2
Adjust the output
signals of SSG to the
squelch level. Rotate
the channel selector
knob to save after the
five-point adjustment
is completed.
SQL level:
-120±1dB
Rx Low Voltage
Threshold
Adjust the output
voltage of the power
supply and check the
alarm level (LED
flashes red and the
alarm tone sounds)
≤6.50V
Low Voltage
Power-Off Level
Digital voltmeter
Power supply
port
Power
supply
Adjust the output
voltage of the power
supply and check the
power-off level.
<5.80V