QUANTUN QP650U Plus, Service Manual

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QP-650U Plus Software Specification
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4. Manual Adjust Mode
(1) Enter the manual adjust mode
Turn channel knob to Channel1, Turn on the power while holding down PTT and Side key simultaneously for 2
seconds, orange LED will flashing two times., release the PTT and SK1 key , then press PTT button for 2 seconds,
the red led flashes and release the two keys again, the radio enters manual adjust mode.
(2) Select adjusting item
In manual adjust mode, select the adjusting item by turning the channel selector knob to CH2-CH16 while holding
down PTT and side key, the item are defined as follows:
Channel NO. Adjust item
2 TX Low Power
3 TX High Power
4 TX CDC Deviation
5 TX CTC(67Hz) Deviation
6 TX CTC(151.8Hz) Deviation
7 TX CTC(254.1Hz) Deviation
8 TX DTMF Deviation
9 VOX Level 1
10 VOX Level 5
11 TX Low battery threshold
12 RX sensitivity
13 Squelch open level 1
14 Squelch open level 9
15 Squelch shut level 1
16 Squelch shut level 9
(3) Adjusting Operation
When the radio enter a adjusting item, the channel selector is used to choose the frequency point and bandwidth,
the PTT and SK1 is pressed to upward/downward the adjusting value. The details is as following:
PTT/SK1
PTT → Increase
SK1 → Decrease