TC-610P Service Manual
78
VOX
Rotate the
Channel
Selector Knob
to
CH12 and select VOX
Level 4. Press
SK1
or
SK2
to enable this
function.
Communication
Test Set
BPF:
<20Hz-15kHz
AF: 1kHz
3.5mV
Antenna
Earpiece
Jack
SK1
SK2
Apply
SK1
or
SK2
to
perform adjustment,
and rotate the
Channel
Selector Knob
to save
it after one-point
adjustment.
Rotate the
Channel
Selector
knob to CH13
and select VOX Level
5. Press
SK1
or
SK2
to
enable this function.
Communication
Test Set
BPF:
<20Hz-15kHz
AF: 1kHz
2mV
Apply
SK1
or
SK2
to
perform adjustment,
and rotate the
Channel
Selector Knob
to save
it after one-point
adjustment.
TX Low
Voltage
Threshold
Digital
Voltmeter
Power
Supply
Port
Power
Supply
Adjust the output
voltage and check the
emergency level.
5.97V-6.92V
(when
≤
6.92V, the
LED flashes;
and when
≤
5.97V, the
alert tone
sounds to
indicate
transmission
inhibition.)
RX Sensitivity
(Bandpass)
Rotate the
Channel
Selector Knob
to CH8
and select the low
frequency.
Communication
Test Set
SSG: -119dBm
MOD: 1KHz
DEV: 3.0KHz
Filter: 0.3-3KHz
Antenna
Earpiece
Jack
SK1
SK2
Check the bandpass
waveform. Apply
SK1
or
SK2
to perform
adjustment, and rotate
the
Channel Selector
Knob
to save it after
five -point adjustment.
Rotate the
Volume
Control
Knob
to a
proper level
until the
output
amplitude is
not limited.
SINAD:
≥
12dB
Short press
PTT
to
switch among
frequencies.
Squelch
On
W
id
e
Rotate the
Channel
Selecto
r Knob to CH1,
and set it to SQL 1 On.
Press
SK1
or
SK2
to
enable this function.
Channel spacing:
Wide;
Frequency: Low. Short
press
PTT
to switch
among frequencies.
Communication
Test Set
SSG: -122dBm
MOD: 1KHz
DEV: 3KHz
Filter: 0.3-3KHz
Antenna
Earpiece
Jack
SK1
SK2
Adjust the output
signals of SSG to the
squelch level. Rotate
the
Channel
Selector Knob
to
save the value after
five-point adjustment.
Squelch
level (1):
-122±1dB
