Sennheiser EW-D SKM-S System specification - Page 11

SYSTEM SPECIFICATION (V1.2) 11/12 Evolution Wireless Digital ARCHITECT'S SPECIFICATION EW-D EM rack receiver The stationary receiver with switching diversity technology shall be for use with a companion transmitter as part of a digital wireless RF transmission system. The receiver 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 receiver shall feature Bluetooth® Low Energy (BLE) at a frequency range between 2402 and 2480 MHz for remote controlling the devices via a control App for iOS and Android. 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. The receiver shall be menu-driven with a backlit LC display showing the current frequency, channel number, metering of RF level, metering of AF level, lock status, muting function, mute lock status, antenna switching diversity, app connection, gain, audio output level, menu and battery status of the associated transmitter. An auto-lock feature shall be provided to prevent settings from being accidentally altered. The receiver shall feature a balanced XLR-3M audio output with a maximum output of +18 dBu along with an unbalanced ¼" (6.3 mm) audio output with a maximum output of +12 dBu. Two BNC-type input sockets shall be provided for connecting the antennas. The receiver shall operate on 12 V power supplied from the power supply unit or from a Sennheiser EW-D ASA antenna splitter. Power consumption shall be ≤ 300 mA. The receiver shall have a rugged metal housing; dimensions shall be approximately 212 x 44 x 189 mm (8.35" x 1.73" x 7.44"). Weight shall be approximately 1000 grams (2.2 lbs) without antennas and power supply. Operating temperature shall range from −10 °C to +55 °C (+14 °F to +131 °F). The receiver shall be the Sennheiser EW-D EM. EW-D SKM-S handheld transmitter The handheld transmitter shall be for use with a companion receiver as part of a digital wireless RF transmission system. The handheld 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 handheld transmitter's parameters shall be configurable in the associated receiver's menu and synchronized with the handheld transmitter via Bluetooth Low Energy (BLE). Power shall be supplied to the handheld transmitter by two 1.5 V AA size batteries or by one Sennheiser BA 70 rechargeable battery pack. Operating time shall be typically 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 handheld transmitter shall have a rugged metal housing; dimensions shall be approximately 50 mm (1.97") in diameter and 268 mm (10.55") in length including a Sennheiser MMD 835 microphone module. Weight including MMD 835 microphone module shall be approximately 304 grams (0.67 lbs). Operating temperature shall range from −10 °C to +55 °C (+14 °F to +131 °F). A range of different microphone heads shall be available for the handheld transmitter. The handheld transmitter shall be the Sennheiser EW-D SKM-S.