Kenwood NX-300S Service Manual

Also see for NEXEDGE NX-300: Brochure Instruction manual Instruction manual Instruction manual Instruction manual

NX-300(S)36PC Test ModeUsed to check the transceiver using the PC.This feature is included in the FPU.■ Frequency and SignalingThe transceiver has been adjusted for the frequenciesshown in the following table. When required, readjust themfollowing the adjustment procedure to obtain the frequenciesyou want in actual operation.• Test frequencyCH RX (MHz) TX (MHz)1 435.05000 435.100002 400.05000 400.100003 469.95000 469.900004 435.00000 435.000005 435.20000 435.200006 435.40000 435.400007~16 - -• Analog mode signalingNo. RX TX1 None None2 None 100Hz Square Wave3LTR Data:AREA=0, GOTO=12HOME=12ID=47, FREE=25LTR Data:AREA=0, GOTO=12HOME=12ID=47, FREE=254 QT: 67.0Hz QT: 67.0Hz5 QT: 151.4Hz QT: 151.4Hz6 QT: 210.7Hz QT: 210.7Hz7 QT: 254.1Hz QT: 254.1Hz8 DQT: D023N DQT: D023N9 DQT: D754I DQT: D754I10 DTMF: 159D DTMF: 159D11 None DTMF Code 9122-tone:A: 304.7HzB: 3106.0Hz2-tone:A: 304.7HzB: 3106.0Hz13 Single Tone: 979.9Hz Single Tone: 979.9Hz14 None Single Tone: 1000Hz15 None MSK16 MSK MSK• NXDN mode signalingNo. RX TX1 RAN1 RAN12 None PN93 RAN1 Maximum deviation pattern7 None FSW+PN9RAN: Radio Access NumberPN9: Pseudo-Random Pattern (for production only)PC Tuning Mode■ Preparations for tuning the transceiverBefore attempting to tune the transceiver, connect theunit to a suitable power supply.Whenever the transmitter is turned, the unit must be con-nected to a suitable dummy load (i.e. power meter).The speaker output connector must be terminated with a8 dummy load and connected to an AC voltmeter and anaudio distortion meter or a SINAD measurement meter at alltimes during tuning.■ 5 reference level adjustments frequencyTuning point RX (MHz) TX (MHz)Low 400.05000 400.10000Low’ 417.55000 417.60000Center 435.05000 435.10000High’ 452.55000 452.60000High 469.95000 469.90000ADJUSTMENT