System specification - Evolution Wireless Digital

SYSTEM SPECIFICATION (V1.2)
Evolution Wireless Digital
12/12
Sennheiser electronic GmbH & Co. KG · Am Labor 1 · 30900 Wedemark · Germany · www.sennheiser.com
ARCHITECT‘S SPECIFICATION
EW-D SK bodypack transmitter
The bodypack transmitter shall be for use with a compa-
nion receiver as part of a digital wireless RF transmission
system.
The bodypack transmitter shall operate within ten
UHF frequency ranges, with a switching bandwidth of
up to 56 MHz: 470.2 – 526 MHz, 520 – 576 MHz, 552
– 607.8 MHz, 606.2 – 662 MHz, 630 – 662 MHz, 662 –
693.8 MHz, 823.2 – 831.8 MHz, 863.2 – 846.8 MHz, 925.2
– 937.3 MHz, 1785.2 – 1799.8 MHz; selectable frequencies
shall be up to 2,240.
The audio frequency response shall be between 20 Hz and
20 kHz (-3 dB) @ 3 dBfs. Audio total harmonic distortion
(THD) shall be ≤ -60 dB for 1 kHz @ -3 dBfs input level.
Dynamic range shall be 134 dB.
A programmable mute switch shall be provided to mute or
unmute the audio signal.
The bodypack transmitter’s parameters shall be configu-
rable in the associated receiver’s menu and synchronized
with the bodypack transmitter via Bluetooth Low Energy
(BLE).
Power shall be supplied to the bodypack transmitter by
two 1.5 V AA size batteries or by one Sennheiser BA 70
rechargeable battery pack. Operating time shall be typical-
ly 12 hours with a battery pack and up to 8 hours with AA
batteries.
Occupied bandwidth shall be 200 kHz. Transmit power
(radiated) shall be 10 mW ERP (1785.2 – 1799.8 MHz Range:
12 mW ERP).
The bodypack transmitter shall have a rugged metal
housing; dimensions shall be approximately 63 x 80 x
20 mm (2.48“ x 3.15“ x 0.79“) without antenna. Weight
without the batteries shall be approximately 120 grams
(0.26 lbs). Operating temperature shall range from −10 °C
to +55 °C (+14 °F to +131 °F).
The bodypack transmitter shall be compatible with micro-
phones for every application: Sennheiser lavalier micro-
phones ME 2, ME 4, MKE 1, MKE 2 Gold and MKE Essential
Omni, Sennheiser headset microphones HS 2, HSP 2,
HSP Essential Omni, ME 3 and SL Headmic 1.
The bodypack transmitter shall be the Sennheiser
EW-D SK.