TK-280
48
ADJUSTMENT
Item
Condition
Measurement
Adjustment
Specifications/
Test equipment
Unit
Terminal
Unit
Parts
Method
Remark
Transmitter Section [Panel Tuning Mode except when Panel TEST Mode is specified.]
11.DQT
1) Adj item [n DQT]
Power meter
Panel
ANT
Panel
Encoder
0.35kHz
±
50kHz
Devition
Adjust [
∗∗∗
]
Dev meter
universal
knob
Adjust
LPF:3kHz
Oscilloscope
connector
HPF:OFF
AG
[Narrow]
2) Adj item
AF VTVM
[nL DQT]
➞
[nC DQT]
➞
[nH DQT]
Adjust [
∗∗∗
]
PTT:ON
[Semi wide] 3) Adj item [s DQT]
0.60kHz
±
50kHz
Adjust [
∗∗∗
]
PTT:ON
[Wide]
4) Adj item [DQT]
0.75kHz
±
50kHz
Adjust [
∗∗∗
]
PTT:ON
12.DTMF
1) Adj item [n DTMF]
1.4kHz
±
0.1kHz
Deviation
Adjust [
∗∗∗
]
Adjust
LPF:15kHz
[Narrow]
HPF:OFF
PTT:ON
[Semi wide] 2) Adj item [s DTMF]
2.4kHz
±
0.1kHz
Adjust [
∗∗∗
]
PTT:ON
[Wide]
3) Adj item [w DTMF]
3.0kHz
±
0.1kHz
Adjust [
∗∗∗
]
PTT:ON
13.MSK
1) Adj item [n FFSK]
1.4kHz
±
0.1kHz
Deviation
Adjust [
∗∗∗
]
Adjust
LPF:15kHz
[Narrow]
HPF:OFF
PTT:ON
[Semi wide] 2) Adj item [s FFSK]
2.4kHz
±
0.1kHz
Adjust [
∗∗∗
]
PTT:ON
[Wide]
3) Adj item [FFSK]
3.0kHz
±
0.1kHz
Adjust [
∗∗∗
]
PTT:ON
14.TONE
1) Adj item [n TONE]
1.4kHz
±
0.1kHz
Deviation
Adjust [
∗∗∗
]
Adjust
LPF:15kHz
[Narrow]
HPF:OFF
PTT:ON
[Semi wide] 2) Adj item [s TONE]
2.4kHz
±
0.1kHz
Adjust [
∗∗∗
]
PTT:ON
[Wide]
3) Adj item [w TONE]
3.0kHz
±
0.1kHz
Adjust [
∗∗∗
]
PTT:ON