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68
Specifications
RF characteristics
Modulation
wideband FM
Frequency ranges
518–554, 626–662, 740–776, 786–822, 830–866 MHz
Receiving frequencies
8 channel banks with up to 20 factory-preset channels each
1 channel bank with up to 20 freely selectable channels
(1,440 frequencies, tunable in steps of 25 kHz)
Switching bandwidth
36 MHz
Nominal/peak deviation
±
24 kHz /
±
48 kHz
Frequency stability
≤ ±
15 ppm
Receiver principle
true diversity
Sensitivity (with
HDX
, peak deviation)
typ. 1.5 µV at 52 dBA
rms
S/N ratio
Adjacent channel rejection
≥
70 dB
Intermodulation attenuation
≥
70 dB
Blocking
≥
80 dB
Squelch
4 steps:
Off
Low: 5 dBµV
Mid: 15 dBµV
High: 25 dBµV
Pilot tone squelch
can be switched off
Antenna inputs
2 BNC sockets (50
Ω)
Cascading outputs
2 BNC sockets (50
Ω)
gain: 0 dB ±2 dB (related to antenna inputs)
AF characteristics
Noise reduction system
Sennheiser
HDX
EQ presets (switchable, effect the line and
monitor outputs):
Preset 1: “Flat“
AF frequency response
40–18,000 Hz
Preset 2: “Low Cut“
Cut
approx. -3 dB at 200 Hz
Preset 3: “HiBoost“
Boost
approx. +6 dB at 10,000 Hz
Preset 4: “Low Cut & Hi Boost“
Cut
Boost
approx. -3 dB at 200 Hz
6 dB at 10,000 Hz
S/N ratio (at 1 mV and peak deviation)
≥
115 dB(A) (AF OUT)
THD (at nominal deviation and 1 kHz)
≤
0.9 %
AF output voltage
(at peak deviation 1 kHz
AF
)
+18 dB
u
to –22 dB
u
, adjustable in steps of 2 dB
(transformer balanced)
AF outputs
2 XLR-3M sockets
Overall unit
Temperature range
–10 °C to
+
55 °C
Power supply
90–264 V AC
Mains connector
3-pin; protection class I
Booster supply voltage
11 V DC, cannot be switched off
Max. booster current
≤
150 mA (limited per antenna socket)
Power consumption
40 VA
Dimensions [mm]
436 x 215 x 43
Weight
approx. 3,500 g