Sennheiser EVOLUTION WIRELESS G2 100, Руководство по обслуживанию

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SK 100 G2, SK 300 G2, SK 500 G2
02/2005
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2.3 RF characteristics
Modulation __________________________ Wideband FM, F8W
Number of transmission frequencies
(tunable in steps of 25kHz)______________ 1440
Frequency ranges in MHz _______________ 518-554
626-662
740-776
774-810 (Japan)
786-822
834-870
Number of frequency banks with
preset channels (presets)
SK 100 G2 ______________________ 8 banks with 4 channels each
SK 300 G2 ______________________ 8 banks with 8 channels each
SK 500 G2 ______________________ 8 banks with max. 20 channels
Freely adjustable frequency bank
(tunable in steps of 25kHz)
SK 100 G2 ______________________ 1 bank, 4 tunable channels
SK 300 G2 ______________________ 1 bank, 8 tunable channels
SK 500 G2 ______________________ 1 bank, 20 tunable channels
Switching bandwidth __________________
≤
36MHz
Harmonic emissions ___________________
≤
1µW
Spurious wave emissions
in the range from 47MHz to 862MHz__
≤
4nW
all other frequencies < 1GHz ________
≤
250nW
Channel grid _________________________ n x 25kHz
Frequency stability within temperature range
≤
±10kHz
Intermodulation distance (±400 kHz)
at antenna distance ³10cm ______________
≥
36dB
Nominal deviation _____________________ ±24kHz
Peak deviation (at 1kHz) ±48kHz / Japan: <±40kHz
RF transmitting power max. at 50W _______ 30mW, +0.8dB/-3dB
Japan: 10mW, +0.8dB/-3dB
Covered bandwidth according to ETSI
at -20dBc _______________________ 140kHz
at -60dBc _______________________ 200kHz
Pilot tone
Frequency ______________________ 32.766kHz ±7.6Hz
Deviation _______________________ 2kHz ± 0.5kHz
Carrier signal-to-noise ratio referring to
peak deviation within switching
bandwidth___________________________ 75dB(A)
eff