TK-880/880H10Item ConditionMeasurement AdjustmentSpecifications/RemarksTest-equipment Unit Terminal PartsUnit MethodADJUSTMENT10. DQT 1) Set test mode Power meter Rear ANT 0.75kHz (Wide) ± 50Hz (Wide/Narrow)deviation Select “F DQT” in tuning mode. Deviation panel 0.35kHz (Narrow)“L FDQT” meterDeviation meter filter OscilloscopeLPF : 3kHzHPF : OFF AF VTVM Front MICPTT : ON AG panel2) “C FDQT”PTT : ON3) “H FDQT”PTT : ON11. Fine LTR 1) Set test mode 1.0kHz (Wide) ± 50Hz (Wide/Narrow)Select “FLTR” in tuning mode. 0.75kHz (Narrow)“L FLTR”deviation meter filterLPF : 3kHzHPF : OFFPTT : ON2) “C FLTR”PTT : ON3) “H FLTR”PTT : ON12. DTMF 1) Set test mode 3.0kHz (Wide) ± 0.2kHz (Wide)deviation Select “DTMF” in tuning mode. 1.5kHz (Narrow) ± 0.1kHz (Narrow)Deviation meter filterLPF : 15kHzHPF : OFFPTT : ON13. MSK 1) Set test mode 3.0kHz (Wide) ± 0.1kHz (Wide/Narrow)deviation Select “FMSK” in tuning mode. 1.5kHz (Narrow)Deviation meter filterLPF : 15kHzHPF : OFFPTT : ON14. TONE 1) Set test mode 3.0kHz (Wide) ± 0.1kHz (Wide/Narrow)deviation Select “TONE” in tuning mode. 1.5kHz (Narrow)Deviation meter filterLPF : 15kHzHPF : OFFPTT : ON