Sennheiser EK 500 - Manual (Page 27)

27
Specifications
RF characteristics
Modulation wideband FM
Frequency ranges 518–554, 626–662,
740–776, 786–822,
830–866 MHz
Transmission frequencies 8 channel banks with up
to 20 factory-preset
channels each
1 channel bank with up to
20 freely selectable
channels (1440
frequencies, tunable in
steps of 25 kHz)
Switching bandwidth 36 MHz
Nominal/peak deviation ± 24 kHz / ± 48 kHz
Frequency stability
≤ ± 15 ppm
RF output power at 50 Ω typ. 30 mW
AF characteristics
Noise reduction system Sennheiser HDX
AF frequency response 40–18,000 Hz
S/N ratio (at 1 mV and peak
deviation)
≥ 110 dB(A)
THD (at nominal deviation
and 1 kHz)
≤ 0.9 %
Max. input voltage
(at peak deviation)
Microphone 1.8 V
rms,
unbalanced
Line 2.9 V
rmsf
Input impedance
Microphone 10 kΩ, unbalanced
Line 1 MΩ
Overall unit
Temperature range – 10 °C to + 55 °C
Power supply 2 AA size batteries, 1.5 V
or BA 2015 accupack
Nominal voltage 2.4 V
Max. power consumption at
nominal voltage
≤ 170 mA
Power consumption with
switched-off transmitter
≤ 250 μA
Operating time (with batteries)
≥
8 h
Operating time (with BA 2015
accupack)
≥
8 h
Dimensions [mm] 82 x 64 x 24
Weight (incl. batteries) approx. 158 g