Sennheiser ew 100 Instructions for Use - Page 45

2 Short description With the evolution wireless series ew 100, Sennheiser offers musicians, video and sound amateurs high-quality state-of-the-art RF transmission systems with a high level of operational reliability and ease of use. Transmitters and receivers permit wireless transmission with studio-quality sound. Due to further optimised PLL and microprocessor technology, the HDX noise reduction system and true diversity technology (not pocket receivers), these transmission systems ensure interference-free transmission and minimise dropouts in the RF link. The systems can be supplied in five frequency ranges within the UHF band. Please note: Frequency usage is different for each country. Your Sennheiser agent will have all the necessary details on the available legal frequencies for your area. Range A: Range B: Range C: Range D: Range E: 518 - 550 MHz, 630 - 662 MHz, 740 - 772 MHz, 790 - 822 MHz, 838 - 870 MHz. ew 100 transmitters and receivers are 4-channel switchable. Each transmitter and receiver has 4 frequency memories to store up to 4 transmission/receiving frequencies. The frequencies are selectable in 25-kHz steps, giving a selection of 1280 frequencies within the preset 32 MHz frequency range. Each system has 4 factory-preprogrammed frequencies, so that - the systems are ready for immediate use after switch-on, - several systems can be operated simultaneously on the factory-preset transmission and receiving frequencies without causing intermodulation interference. However, all frequency settings can be changed to your individual needs, if required. Each system consists of - a receiver (mains or pocket), - a hand-held/pocket/plug-on transmitter and - comes complete with all necessary accessories. 3 Important notes Never open electronic devices! This must only be done by authorised personnel and is all the more important for units connected to AC outlets. If devices are opened by customers in breach of this instruction, the warranty is voided. Always disconnect the devices from the mains by removing the plug when you wish to change connections or move the devices to a different place. Keep the devices away from central heating radiators and electric heaters. Never expose them to direct sunlight. Use the devices in dry rooms only. Use a damp cloth for cleaning the devices. Do not use any cleansing agents or solvents. Varnish or furniture polish may degrade the rubber feet of the transmitter. Place the transmitter on a nonslip pad to avoid potential staining of furniture. 47