49
ADJUSTMENT
Measurement
Test-
equipment
Unit
Terminal
Adjustment
Unit
Parts
Method
Specifications/Remarks
Condition
Item
TK-980/981
9. MIC
1) Set test mode
Power meter Rear
ANT
Check
2.2~3.8kHz (TK-980)
sensitivity
CH : CH4 - Sig1
Deviation
panel
1.1~1.9kHz (TK-981)
check
AG : 1kHz/5mV
meter
PTT : ON
Oscilloscope
10. QT
1) Set test mode
0.75kHz (Tk-980)
±
50Hz
deviation
Select “FQT” in tuning mode. AF VTVM
Front
MIC
0.35kHz (TK-981)
“L FQT”
AG
panel
Deviation meter filter
LPF : 3kHz
HPF : OFF
PTT : ON
2) “C FQT”
PTT : ON
3) “H FQT”
PTT : ON
11. DQT
1) Set test mode
0.75kHz (TK-980)
±
50Hz
deviation
Select “F DQT” in tuning mode.
0.35kHz (TK-981)
“L FDQT”
Deviation meter filter
LPF : 3kHz
HPF : OFF
PTT : ON
2) “C FDQT”
PTT : ON
3) “H FDQT”
PTT : ON
12. Fine LTR
1) Set test mode
1.0kHz (TK-980)
±
50Hz
Select “FLTR” in tuning mode.
0.75kHz (TK-981)
“L FLTR”
deviation meter filter
LPF : 3kHz
HPF : OFF
PTT : ON
2) “C FLTR”
PTT : ON
3) “H FLTR”
PTT : ON
13. DTMF
1) Set test mode
3.0kHz (TK-980)
±
0.2kHz
deviation
Select “DTMF” in tuning mode.
1.5kHz (TK-981)
Deviation meter filter
LPF : 15kHz
HPF : OFF
PTT : ON
14. MSK
1) Set test mode
3.0kHz (TK-980)
±
0.1kHz
deviation
Select “FMSK” in tuning mode.
1.5kHz (TK-981)
Deviation meter filter
LPF : 15kHz
HPF : OFF
PTT : ON
15. TONE
1) Set test mode
3.0kHz (TK-980)
±
0.1kHz
deviation
Select “TONE” in tuning mode.
1.5kHz (TK-981)
Deviation meter filter
LPF : 15kHz
HPF : OFF
PTT : ON