User's Manual

TC-700 Adjustment Description
24
Receiver
Item Condition
Test
Instrument
Method Purpose
1. RX
sensitivity
Enter the adjust mode. Turn to
CH1.
Adjust at 5 point (wideband).
PTT key
SK1 key
Adjust level to
119dBm.
SINAD≥12dB
2. AK2346 RX
volume
Enter the adjust mode. Turn to
CH2. Adjust 1 point at
wideband, medium band and
narrowband respectively.
PTT key
(Increase)
SK1 key
(Decrease
When Max. volume
is set, adjust AC
level to 1W (16Ω),
single input 2.5V,
dual input 5V
3. Squelch
Level 3
(OPEN)
Enter the adjust mode. Turn to
CH3. Adjust at 5 point
(wideband), 1 point (medium
band) and 1 point
(narrowband) respectively.
Save
Adjust level to
-123dBm，press
PTT to save
4. Squelch
Level 3
(SQUELCH)
Enter the adjust mode. Turn to
CH4. Adjust at 5 point
(wideband), 1 point (medium
band) and 1 point
(narrowband) respectively.
Save
Adjust level to
-125dBm，press
PTT to save
5. Squelch
Level 9
(OPEN)
Enter the adjust mode. Turn to
CH5. Adjust at 5 point
(wideband), 1 point (medium
band) and 1 point
(narrowband) respectively.
Save
Adjust level to
-117dBm，press
PTT to save
6. Squelch
Level 9
(SQUELCH)
Enter the adjust mode. Turn to
CH6. Adjust at 5 point
(wideband), 1 point (medium
band) and 1 point
(narrowband) respectively.
Save
Adjust level to
-119dBm，press
PTT to save
Group 2
7. RX voltage
Low
Enter the adjust mode. Turn to
CH7. Adjust at 1 point
(wideband).
Radio
Communication
Test Set
RX TEST
HPF：300HZ
LPF：3KHZ
Save
Adjust power
supply voltage to
6.3V, press PTT to
save
Note: AF deviation of the receiver is 3KHz (wideband)，2.5KHz(medium band) and 1.5KHz (narrowband)