HED Audio WMS A4
RF Carrier Frequency Range: 460.00MHz to 970.00 MHz (Available frequencies depend on the applicable regulations in the country where the system is used).
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(Available frequencies depend on the applicable regulations in the country where the system is used).
Effective Range: 100m(300ft.) Under optimal conditions
Audio Frequency Response: 25Hz to 15,000Hz, ±2 dB
Receiver Audio Output Level : 25 KHz deviation, 400Hz tone
XLR connector: into 600 ohm load : 24mV
1/4 inch connector: into 3000 ohm load : 360mV
Modulation: FM; ±25KHz
RF Power Output: 10 mW
Dynamic Range: >100 dB
RF Sensitivity:-105dBm (S/N-12dB)
Image Rejection: 80 dB typical
Spurious Rejection: 60 dB typical
Ultimate Quieting: reference 25KHz deviation : -105dBm, A-weighted System Distortion: 1% total harmonic distortion, typical
A4 Transmitters: 2 x AA 1.5V Alkaline batteries
A4 Receiver: 12 -18 V DC(negative ground), 500mA
Battery Life: Approximately 9 hours (varies with battery type)
Operating Temperature Range: -20 to 49°C (-4 to 120°F)