Kenwood NXR-800 Service Manual

Also see for NEXEDGE NXR-800: Brochure Instruction manual Instruction manual Instruction manual Instruction manual

Contents

NXR-80042ADJUSTMENTItem ConditionMeasurement AdjustmentSpecifications / RemarksTest-equipment Unit Terminal Unit Parts Method33. Discriminator 1) NarrowFrequency: Desired frequencySSG output: –53dBm (501μV)SSG MOD: 1kHzSSG DEV: 1.5kHzAF output: 2V/4ΩSSGAF V.MRear RX ANTTEST/SPKRjack SPO(pin 12)4Ω loadRX L128 Adjust AF outputmax.34. RD Level 1) Wide/Narrow: Analog WideConnect the SSG to the RXANT.SSG settingFrequency: Desired frequencyOutput: –53dBm (501μV)MOD: 1kHzDEV: ±3.0kHzSSGAF V.MRear RX ANTCONTROLI/O jackRD (pin 10)PCADJ80mV ±5mV2) Wide/Narrow: Analog NarrowSSG settingDEV: ±1.5kHz35. RA Level 1) Wide/Narrow: Analog WideConnect the SSG to the RXANT.SSG settingFrequency: Desired frequencyOutput: –53dBm (501μV)MOD: 1kHzDEV: ±3.0kHzSSGAF V.MRear RX ANTCONTROLI/O jackRA (pin 11)PCADJ400mV ±20mV2) Wide/Narrow: Analog NarrowSSG settingDEV: ±1.5kHz36. ReceiverSensitivityCheck1) Wide/Narrow: Analog WideConnect the SSG to the RXANT.SSG settingFrequency: Desired frequencyMOD: 1kHzDEV: ±3.0kHzAF: 0.45V/4ΩSSGDistortionmeterRear RX ANTTEST/SPKRjack SPO(pin 12)4Ω loadCheck –115dBm (0.4μV) or less2) Wide/Narrow: Analog NarrowSSG settingDEV: ±1.5kHz37. TightSquelch1) Wide/Narrow: Analog WideConnect the SSG to the RXANT.SSG settingFrequency: Desired frequencyOutput: 12dB SINAD level +7dBMOD: 1kHzDEV: ±3.0kHzSSGOscilloscopeAudioanalyzerRear RX ANTTEST/SPKRjack SPO(pin 12)4Ω loadPCADJAdjust it to the levelto open the squelch.2) SSG output: OFF Check The squelch shall be closed.3) Wide/Narrow: Analog NarrowSSG settingDEV: ±1.5kHzPCADJAdjust it to the levelto open the squelch.4) SSG output: OFF Check The squelch shall be closed.