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Technical specifications*
System: Radio Frequency (RF)
Carrier Frequency: SBC HD1500U/00 &/05
(Transmitter HD1502) Channel 1: 863.3 MHz
Channel 2: 863.7 MHz
Channel 3: 864.1 MHz
Channel 4: 864.5 MHz
Carrier frequency SBC HD1500U/00 &/05
(auto tuning) 863.3 to 864.5 MHz
Modulation: GFSK
Radiated Output Power: <10m Watt
Effective Transmission Range: up to 100 meters,
omni directional (360º)**
Input sensitivity: 500 mVrms (1 kHz sine wave)
Power supply – base station: SBC HD1500U/00 & /05
230 VAC 50Hz
Power supply – headphone: 1 rechargeable battery pack
(SBC EH2412/00) containing 2 pieces of
R06/AA NiMH (1200 mAh)
Frequency range
(Headphone): 40 – 24,000 Hz
Signal/Noise ratio: 85 dB typical
(1 kHz sine wave, A-weighted)
Distortion: 0.8% THD typical
Channel separation: 40 dB typical
*) All specifications are subject to change without prior notice.
**) Depending on the specific version of HD1500U and depending on the
ambient conditions.