Handsets - HOLMCO

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4 Handsets Earpiece In our headsets and headphones we use exclusively dynamic transducers as earpiece capsules. These capsules contain a moving coil positioned in a static magnetic field generated by a permanent magnet. The coil is fixed to a diaphragm. The voltage signal applied to the earpiece causes the coil to vibrate, and these vibrations are transferred to the diaphragm. The vibrations in the diaphragm generate sound waves that are proportional to the applied signal voltage. Dynamic transducers can produce very high sound pressures and are also extremely durable and reliable, so are best suited for use in harsh environmental conditions. They provide good sound reproduction quality at an attractive price. Dynamic transducer Cradle For use in vehicles, the handset must be held securely in the cradle to prevent it falling out when the vehicle accelerates sharply. This is achieved by a handset retainer: a sturdy mechanism that holds the handset in place. Some handsets include a special cradle-release button. For stationary use, for instance in control centres, a special handset retainer is not required. The cradle often includes a cradle switch. This is a switching contact that actuates when the handset is removed or replaced, allowing detection of when the handset is resting in the cradle.
5 masterset Handsets Handsets Lightweight handset, available in various colours Features Housing Colour Weight excluding earpiece capsules and lead thermoplastic parts made of ABS copolymer handset depends on model, black PTT button approx. 120 g Model Handset excluding earpiece capsules, with PTT button (push-to-talk contact) 4-core coiled cable with connector casing to DIN 46336 Options Part no. fern green 88-16-11255 pebble grey 88-16-11254
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Page 3 and 4: 1 Handsets Content Basic principles
Page 5: 3 Handsets Directional pattern The
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Page 19 and 20: 17 N-40SR Units, handsets and cradl
Page 21 and 22: 19 N-40N Handsets and cradles Hands
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Handsets - HOLMCO

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