Kenwood TK-790 Service Manual

Also see for FleetSync TK-790: Specifications Instruction manual Specifications Instruction manual

69ADJUSTMENTMeasurementTest-equipment Unit TerminalAdjustmentUnit Parts Method Specifications/RemarksConditionItemTK-790/(B)/H(B)Common Section1. Frequency • Frequency range (MHz)list K : 148~174 (TK-790/(B), 790H(B))K2 : 136~156 (TK-790(B))• Adjustment frequency (MHz) • Signalling2. Setting • Receiver section • Transmitter sectionThe indicated SSG output level are for maximum output.Whenever there is no modulation desingnation,standard modulation (MOD : 1kHz, DEV : 3kHz (Wide),DEV : 1.5kHz (Narrow)) is indicated.Connect the front panel (KCH-10) to the transceiver’s body.3. PLL lock 1) CH-SIG : 3-1 K DC VM TX-RX CV TX-RX A (TC301) 1.5V ± 0.1Vvoltage CH-SIG : 7-1 K2 Power meter (A/3) (A/3)2) CH-SIG : 3-1 K C (TC302)CH-SIG : 7-1 K2PTT : ON3) CH-SIG : 2-1 Check 8.0V or less4) CH-SIG : 2-1PTT : ON4. Transmit 1) CH-SIG : 1-1 Power meter Rear ANT Panel PF3 key CH-1 frequency ± 70Hzfrequency Select FREQ_XXX f. counter PF4 keyin tune modePTT : ON4Ω dummy loadAF VTVMOscilloscopeDistortion meterSSGACC(SP)ANTAG AF VTVMMICPTTPower meterCouplerDeviationmeterFrequencycounterANT– +– ++–AmmeterPowersupplyDC INK K2CH TX RX TX RX1 161.000 161.100 146.000 146.1002 148.000 148.100 136.000 136.1003 174.000 173.900 156.000 155.9004 161.000 161.000 146.000 146.0005 161.200 161.200 146.200 146.2006 161.400 161.400 146.400 146.4007 – – 162.000 161.900CH No. Encode tone Decode tone1 None None2 100Hz square wave None3 QT 67.0Hz QT 67.0Hz4 QT 151.4Hz QT 151.4Hz5 QT 250.3Hz QT 250.3Hz6 DQT 023N DQT 023N7 Single tone 1633Hz 2 tone 321.7/928.1Hz8 DTMF [9] DTMF [159]9 MSK None