Audio frequency frequency response 80~10000Hz dynamirange ≥60dB system degree of distortion ≤1% signal-to-noise ratio ≥60dB service range Appr.25M operating temperature scope 5℃~45℃ carrier frequency scope 110~130MHz . launcher frequency stability ±0.005% carrier output ≤10mW the stray radiation suppresses >40dB modulation system FM most major system ±75KHz acoustic pickup way Electret electric capacity type pre-emphasis 50μS use power source 9V Bat.power source consumption <40mA volume 90×59×24mm weight Appr.60g (No Bat.) . receiver receiving sensitivity <2μV the mirror image suppresses >40dB aggravates 50μS audio frequency output impedance 600Ω±30% audio frequency power output 0~0.3V use power source AA 1.5V Bat.power source consumption ≤40mA volume 10×40×16mm weight Appr.37g
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