SENNHEISER EM 3031 Récepteur HF

Technical data EM 3031 / EM 3032

RF characteristics
Frequency range 430–960 MHz
Receiver frequencies max. 32 in 4 groups,
pre-programmedto customer specifications
Switching bandwidth 24 MHz
Frequency stability ± 10 ppm (-10°C to +55°C)
Sensitivity (with HiDyn plus®) typ: 5 µV for 90 dBAeff SNR
Squelch treshold 0 to 100 µV, adjustable
Image rejection ≥ 50 dB, typ. 65 dB
Adjacent channel rejection ≥ 75 dB
Intermodulation attenuation typ. 66 dB (400 kHz/800 kHz)
Free field interference radiation 30 – 2000 MHz > -57 dBm (2nW)
Antenna input 2 BNC sockets
Antenna input impedance 50 Ω
AF characteristics
Modulation wideband FM
Compander system Sennheiser HiDyn plus®
De-emphasis 50 µs
Nominal/peak deviation ±40 kHz/±56 kHz
AF frequency response 45–20,000 Hz
AF outputs LINE 3-pin XLR, transformer balanced
MONITOR 1/4 “ (6.3 mm) ø jack plug
(mono signal on stereo socket
Signal to L- and R-ring, sleeve earthed)
AF output voltage at peak deviation LINE: 0–5.6 V adjustable, ≥ 2 kΩ
MONITOR: 0–2.8 V adjustable, ≥ 600 Ω
Amplification on monitor output 30 dB
Source impedance of AF output ≤ 50 Ω (LINE at max. level)
Signal-to-noise ratio 120 dBA eff
at 1 mVRF and peak deviation 116 dB external eff
106 dB CCIR peak
THD at 1 kHz and nominal deviation ≤ 0.5%, typ. 0.25%