Hytera HYT TC-500, Руководство по обслуживанию

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TC-500 Service Manual
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RECEIVER: (Enter the manual adjust mode)
Measurement Adjustment
Item Condition
Test Instrument Terminal Part Method
Specification
/Remarks
4. Band
Pass Filter
1.RX Center. Turn to
CH13 in manual adjust
mode.
Scanner ANT . TP2
TC3
TC4
TC5
Adjust the waveform to the
top, and the top is flat, the
bandwidth is about 20MHz,
the sign of RX central
frequency is at the middle
of the waveform.
1.RX Center. Turn to
CH13 in manual adjust
mode (long press MONI
key to switch N/W).
2. RX Low. Turn to
CH14 in manual adjust
mode (long press MONI
key to switch N/W).
5.sensitivity
3.RX High. Turn to
CH15 in manual adjust
mode (long press MONI
key to switch N/W).
Radio
Communication
Test Set
-118dBm
MOD:1KHz
DEV:±3kHz
(Wide)
±1.5kHz
(Narrow)
FILER:
0.3-3.4kHz
ANT
Speaker
Jack
Check
SINAD: 12dB or
higher
1.RX Center. Turn to
CH2 in manual adjust
mode. Adjust by
pressing PTT or MONI.
Radio
Communication
Test Set
SSG output:
-117dBm
Level 9
Adjust to just close the
squelch.
Adjust squelch
level 9
6.Squelch
2.RX Center. Turn to
CH3 in manual adjust
mode. Adjust by
pressing PTT or MONI.
Radio
Communication
Test Set
SSG output:
-125dBm
ANT
Speaker
Jack
Level 3
Adjust to just close the
squelch.
Adjust squelch
level 3