Hytera TC-700, Руководство по обслуживанию

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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 (16
Ω
),
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)