Hytera TC-700, Service Manual, Page: 22 / 50

TC-700 Adjustment Description
21
3. Adjustment Method
Turn the power on by holding down TK and SK2 key simultaneously for 2 seconds, the radio enters
manual adjust mode with red LED flashes twice. Refer to Manual Adjust Mode in TC-700 Software
Specification for more details.
(1) Transmitter
Item Condition Test Instrument Method Purpose
Adjust a channel
Enter the adjust mode;
Turn to CH1;
TX mode.
Radio
Communication
Test Set;
TX Test
Adjust
VR1
Frequency Error
≤
100Hz
1. TX power Low
Enter the adjust mode.
Turn to CH1.
Adjust at 5 point
(wideband).
PTT key
(increase)
SK1 key
(decrease)
Adjust power to:
1W±0.1W
2. CDCSS balance
Enter the adjust mode.
Turn to CH3. Adjust at
3 point (wideband), 1 point
(medium band) and
1 point (narrowband)
respectively.
PTT key
(increase)
SK1 key
(decrease)
No adjustment
3. CDCSS
deviation
Enter the adjust mode.
Turn to CH3. Adjust at
3 point (wideband), 1 point
(medium band) and
1 point (narrowband)
respectively.
PTT key
(increase)
SK1 key
(decrease)
4. CTCSS (67.0Hz)
deviation Low
Enter the adjust mode.
Turn to CH4. Adjust at
3 point (wideband), 1 point
(medium band) and
1 point (narrowband)
respectively.
PTT key
(increase)
SK1 key
(decrease)
Group 1
5. CTCSS
(136.5Hz) deviation
Center
Enter the adjust mode.
Turn to CH5. Adjust at 3
point (wideband), 1 point
(medium band) and
1 point (narrowband)
respectively.
Radio
Communication
Test Set
TX TEST
HPF ： 20HZ
LPF
：
300HZ
PTT key
(increase)
SK1 key
(decrease)
Adjust deviation to
750Hz (wideband),
600Hz (medium
band) and 400Hz
(narrowband)
respectively.