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• MICROPHONE • freq stable range : <30ppm • output power : <30mW pre-emphasis : 75us • RFI suppression : >40dB • radio freq type : FM • freq range : 50kHz • microphone type : dynamic • power requirements : 3V battery • de-emphasis : 75us • power consumption : 45mA • dimensions 53 x 250mm • weight : 235g • RECEIVER • sensitivity : 2 micro V • output impedance : 60 ohms • output level : 300mV • power requirements : 17V DC • power consumption : 170 mV • dimensions : 215 x 205 x 53mm • weight : 2.3 kg • freq response 40Hz-15kHz • dynamic range : 10dB • distortion : <0.5% s/n ratio : >100 dB • service range : 100 meters • operating temp : 5 to 45 degrees • carrier freq range : HF 500-960MHz