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Clear-Com MB100 Portable Base Station

The MB100 is the portable base station for the Clear-Com DX100 digital wireless intercom, a 2.4 GHz license-free system you can set down on a road case and have talking in minutes. Four people can hold hands-free, full-duplex conversations at once, and the base supports up to 15 registered users in total, so a crew can share the channel on push-to-talk while the key positions stay latched. Digital frequency-hopping spread spectrum with 64-bit encryption and dual-slot diversity antennas keeps the audio clear and closed to anyone outside the system.

Its real advantage is how it takes power: six 1.5V AA cells, an optional rechargeable BAT850 pack, a 12V DC automotive adapter, or the 100/240V AC supply, which makes it as usable in a parking lot or on a crane as it is in a control room. Weather-proofed gaskets protect the electronics outdoors, front-panel controls handle registration and reset, and a remote unlatch function shuts down a beltpack someone left keyed. Beltpacks interchange with a DX200 base, so existing inventory carries over. The MB100 is the base station by itself; beltpacks, headsets, and batteries are separate.

Frequency Range2400-2483.5 MHz (2.4 GHz, license-free)
Wireless CapacityUp to 4 simultaneous full-duplex users; up to 15 users per base
RF TechnologyFrequency-hopping spread spectrum (FHSS), 64-bit encryption, dual-slot diversity
Frequency Response200 Hz to 3.5 kHz
AntennaExternal, dual diversity, 1/2-wave dipole (supplied)
PowerSix 1.5V AA batteries, rechargeable BAT850 battery, 12V DC automotive adapter, or 100/240V AC supply
Operating Temperature-4 to 131 F (-20 to 55 C), typical
Dimensions10.2 x 6.45 x 3.33 in (25.91 x 16.38 x 8.46 cm)
Weight2.35 lb (1.07 kg) with alkaline batteries