收音机电气性能测试方法

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1、RADIO產品電氣性能測試方法AM測量一.TuningRangeLow/High頻率.....................................................................................................................3二.IFFrequency中頻........................................................................................

2、................................................4三.TrackingError統調誤差.............................................................................................................................4四.Maxsensitivity最大靈敏度................................................

3、........................................................................4五.NoisedLimitedsensitivity(S/N=20dB)實用靈敏度寬度..........................................................................4六.-6dBBandwidth頻帶寬度.....................................................

4、....................................................................4七.ImageRejectionRatio鏡象幹擾...............................................................................................................5八.SpuriousRejection假波抑制..................................

5、...................................................................................5九.I.FRejection中頻抑制...............................................................................................................................5十.AMWhistle(2IF/3IF)二倍中頻/三倍中頻嘯叫..

6、...................................................................................5十一.SelectivityACA選擇性..................................................................................................................5十二.Selectivity2倍ACA選擇性......................

7、.............................................................................5十三.AutomaticGainControl(100mV/m,10dB)自動增益控制.........................................................6十四.AudioResponse-6dB頻響..............................................................

8、............................................6十五.SignalToNoiseRatio(Unweighed)..................................................................................