Service Manual

28
Rotate to CH2.
Press PTT to
enable the
function.
Low frequency
Low
Short press
PTT to switch
frequencies
periodically
(refer to the
adjustment list)
Press SK1/SK2 to
increase/decrease the
output power and
rotate the channel
selector knob to save.
2W±0.3W
I≤1.2A
Rotate to CH5.
Press PTT to
enable the
function.
Low frequency
Adjust VR260 with a
ceramic alignment
screwdriver to
enable the
waveform
approximate to the
rectangular wave.
CDCSS Waveform
Short press
PTT to switch
frequencies
periodically
and long press
PTT to switch
between wide
band and
narrow band.
VR260
Check
Rotate to CH5.
Press PTT to
enable the
function.
Wide band
Low frequency
Wide
Press PTT to
switch other
frequencies
(medium-low,
medium,
medium-high
and high)
Adjust VR601 with a
ceramic alignment
screwdriver check
each frequency.
Adjust finely with SK1
and SK2 to limit the
CDCSS deviation to
the required range if
necessary.
500-800Hz
CDCSS
Deviation
Narrow
Long press
PTT (≥1.5s) to
enter narrow
band.
Radio
communication test
set
LPF:0.3KHz
Antenna
VR601
SK1
SK2
Check 300-500Hz