KENWOOD–TS-850-维修用说明书手册-4

TS-850SADJUSTMENTRequired Test Equipment1.DC Voltmeter (DC V.M)11.Noise Generator1)Input resistance More than 1MMust generate ignition noise containing harmonics2)Voltage range:1.5 to 1000V AC/DCbeyond 30MHzNote A high-precision multimeter may be used.12.RF Dummy LoadHowever,accurate readings can not be obtained for1)Impedance 1500 and 502high-impedance circuits.2)Dissipation:150W or greater2.DC Ammeter13.Linear Detector1)Current range:100mA,1.5A,15A,High-precision1)Frequency range 30MHzammeter may be used.14.Power Meter3.RF VTVM(RF V.M)1)Impedance:5021)Input impedance:1MR and less than 3pF,min.2)Dissipation:300W continuous or greater2)Voltage range:10mV to 300V3)Frequency limits:60MHz or greater3)Frequency range 10kHz to 500MHz15.Spectrum Analyzer4.AF Voltmeter (AF V.M)1)Frequency range:100kHz to 110MHz or greater1)Frequency range 50Hz to 10kHz2)Bandwidth 1kHz to 3MHz2)Input resistance 1M or greater16.Detector3)Voltage range:10mV to 30V1)For adjustment of BPF5.AF Generator(AG)1)Frequency range:200Hz to 5kHzINPUTOOOUTPUT2)Output:1mV or less to 1V,low distortionTo AF unit1N60To oscilloscope6.AF Dummy Load5611N60OGNO1)Impedance:8GNDO2)Dissipation 3W or greater7.Oscilloscope2)For adjustment of PLL/CO BPFRequires high sensitivity,and external synchroniza-tion capability (150MHz or greater).INPUT OOOUTPUT8.Sweep Generator1)Center frequency 50kHz to 90MHzTo oscilloscope1N602)Frequency deviation:Maximum 35MHzGNDOOGNO3)Output voltage 0.1V or greater4)Sweep rate:At least 0.5 sec/cm17.Directional Coupler9.Standard Signal Generator (SSG)18.Monitor Receiver1)Frequency range:50kHz to 50MHzR-1000 class2)Output:-20dB/0.1uV to 120dB/1V19.Microphone3)Output impedance 50MC-43S or MC-60/60S84)AM and FM modulation can be possible.20.Tracking GeneratorNote:Generator must be frequency stable.10.Frequency Counter(f.counter)1)Minimum input voltage:50mV2)Frequency range:150MHz or greaterPreferenceJapanese "SG"American "SG"-6dB.…0.25μW0B0.5μV6dB…luv12dB2uV24dB.…8μV30dB.…15.8V40dB…50uV50dB…158uV60dB500μV70d81.58mW80dB.5mV90dB15.8mw100dB50mV120dB0.5V96