TK-880/H (UHF) mobile service manual - The Repeater Builder's ...
TK-880/H (UHF) mobile service manual - The Repeater Builder's ...
TK-880/H (UHF) mobile service manual - The Repeater Builder's ...
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ADJUSTMENT<br />
<strong>TK</strong>-<strong>880</strong>/H<br />
Item<br />
Condition<br />
Measurement<br />
Testequipment<br />
Unit Terminal<br />
Adjustment<br />
Unit Parts Method<br />
Specifications/Remarks<br />
11. Fine LTR 1) Set test mode Power meter Rear ANT 1.0kHz (Wide) ± 50Hz (Wide/Narrow)<br />
Select “FLTR” in tuning mode. Deviation panel 0.75kHz (Narrow)<br />
“L FLTR” meter<br />
deviation meter filter<br />
Oscilloscope<br />
LPF : 3kHz<br />
HPF : OFF AF VTVM Front MIC<br />
PTT : ON AG panel<br />
2) “C FLTR”<br />
PTT : ON<br />
3) “H FLTR”<br />
PTT : ON<br />
12. DTMF 1) Set test mode 3.0kHz (Wide) ± 0.2kHz (Wide)<br />
deviation Select “DTMF” in tuning mode. 1.5kHz (Narrow) ± 0.1kHz (Narrow)<br />
Deviation meter filter<br />
LPF : 15kHz<br />
HPF : OFF<br />
PTT : ON<br />
13. MSK 1) Set test mode 3.0kHz (Wide) ± 0.1kHz (Wide/Narrow)<br />
deviation Select “FMSK” in tuning mode. 1.5kHz (Narrow)<br />
Deviation meter filter<br />
LPF : 15kHz<br />
HPF : OFF<br />
PTT : ON<br />
14. TONE 1) Set test mode 3.0kHz (Wide) ± 0.1kHz (Wide/Narrow)<br />
deviation Select “TONE” in tuning mode. 1.5kHz (Narrow)<br />
Deviation meter filter<br />
LPF : 15kHz<br />
HPF : OFF<br />
PTT : ON<br />
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