Sennheiser SK 250 User manual

SK 250
RF Wireless Systems | 5000 Series Bodypack Transmitters
Features
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Bodypack transmitter for demanding broadcast and musical applications
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Battery status transmitted to suitable receivers
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Extremely reliable special sockets, metal housing
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Quick change accupack or battery box
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1 switchable carrier frequencies per frequency window, PLL-controlled
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HiDyn plus™ noise reduction system
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RF output power max. 250 mW
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Delivery includes: 1 SK 250 bodypack transmitter, 1 channel switcher,
1 set of colour-coded identification markers, 1 antenna
General Description
The SK 250 bodypack transmitter fulfils the most stringent demands on operation
and mechanical stability. Compared to the SK 50, it has a higher output power,
making it the ideal choice for broadcast applications.
Technical Data SK 250 UHF-a
RF output power ............................max. 250 mW (–1 dB)
Transmission frequencies ................................................1
Frequency range...........................................450–9 0 MHz
Switching bandwidth.............................................. 24 MHz
Modulation...................................................... wideband FM
Nominal/peak deviation ................ ± 40 kHz / ± 5 kHz
Noise reduction system ................................. HiDyn plus™
Input sensitivity for ..................................... 13 mV–1.55 V
peak deviation ................................ switchable in 8 steps
AF frequency response...............................45–20,000 Hz
Signal-to-noise ratio ................................... >117 dB(A)rms
THD (at nom. deviation).............................................. <1 %
Connectors
- AF .............................................special 3-pin audio socket
- RF ...................................................................... co-ax socket
Operating time with
B 250-1/BA 250-1 ............................ > 2.5 hrs / > 4.5 hrs
Dimensions with
B 250-1/BA 250-1 .................................11 x 0 x 17 mm
Weight incl. B 250-1/BA 250-1 ................approx. 230 g
Technical Data SK 250 VHF
RF output power ............................max. 250 mW (–1 dB)
Transmission frequencies ................................................1
Frequency range...........................................138–250 MHz
Switching bandwidth.................................................7 MHz
Modulation...................................................... wideband FM
Nominal/peak deviation ................ ± 40 kHz / ± 5 kHz
Noise reduction system ................................. HiDyn plus™
Input sensitivity for ..................................... 13 mV–1.55 V
peak deviation ................................ switchable in 8 steps
AF frequency response...............................45–20,000 Hz
Signal-to-noise ratio ................................... >117 dB(A)rms
THD (at nom. deviation).............................................. <1 %
Connectors
- AF .............................................special 3-pin audio socket
- RF ...................................................................... co-ax socket
Operating time with
B 250-1/BA 250-1 ............................ > 2.5 hrs / > 4.5 hrs
Dimensions with
B 250-1/BA 250-1 .................................11 x 0 x 17 mm
Weight incl. B 250-1/BA 250-1 ................approx. 230 g
Product Variants
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SK 250-UHF-A: 450–580 MHz Cat. No. 005525
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SK 250-UHF-B: 540–730 MHz Cat. No. 00552
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SK 250-UHF-C: 80–8 0 MHz Cat. No. 005527
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SK 250-UHF-D: 800–9 0 MHz Cat. No. 005377
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SK 250-VHF-A: 138–170 MHz Cat. No. 005528
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SK 250-VHF-B: 170–225 MHz Cat. No. 005529
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SK 250-VHF-C: 210–2 0 MHz Cat. No. 005530

Recommended Accessories for SK 50 / SK 250
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B 50-1 battery box for 2 AA size batteries only for SK 50) Cat. No. 005269
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B 250-1 battery box for 3 AA size batteries Cat. No. 005271
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BA 50-1 accupack with 2 NiMH cells only for SK 50) Cat. No. 005270
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BA 250-1 accupack with 3 NiMH cells Cat. No. 005272
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L 50 charger for 2 accupacks Cat. No. 003554
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DCA 50 power adaptor Cat. No. 003839
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NT 50 plug-in mains unit for 4 chargers* Cat. No. 003594
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SK 50 T protection bag, beige Cat. No. 003972
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MKE 2-4 Gold-C clip-on microphone, omni, black Cat. No. 004736
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MKE 2-4-3 Gold-C clip-on microphone, omni, beige Cat. No. 004739
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MKE platinum-4-C clip-on microphone, omni, black Cat. No. 005276
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MKE platinum-4-3-C clip-on microphone, omni, beige Cat. No. 005277
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MZ 2-1 Gold accessory kit Cat. No. 004741
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MZ 2-2 Gold accessory kit Cat. No. 004742
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MZ 2-3 Gold accessory kit Cat. No. 004743
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ME 102 ant mini mic head, omni anthracite)** Cat. No. 003876
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ME 102 nickel mini mic head, omni nickel)** Cat. No. 003838
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ME 104 ant mini mic head, cardioid anthracite)** Cat. No. 004227
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ME 104 nickel mini mic head, cardioid nickel)** Cat. No. 004228
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KA 100 S-4 ant steel cable, straight plug ant) Cat. No. 004235
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KA 100 S-4 beige steel cable, straight plug beige) Cat. No. 004236
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KA 100-4 ant copper cable, rt.-angled plug ant) Cat. No. 004233
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KA 100-4 gr copper cable, rt.-angled plug grey) Cat. No. 004234
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MZ 100 accessory kit Cat. No. 004226
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MZM 2 / MZM 10 magnetic mount set Cat. No. 001866
*For US and UK versions see ”Accessories“
**Delivery includes windshield
SK 50/SK 250
RF Wireless Systems | 5000 Series Bodypack Transmitters
94 mm (B 50 / BA 50) 116 mm (B 250 / BA 250)
60 mm
17 mm
Dimensions of the SK 50 / SK 250