MM400C Water-Resistant Digital Hybrid Wireless™ Miniature Transmitter
Waterproof Power/Mute switch
Water resistant, rugged, machined aluminum housing with noncorrosive, superhard finish
Digital Hybrid Wireless™ system
256 synthesized UHF frequencies
100 mW output power
Dual bicolor LEDs indicate four different levels for accurate gain adjustment
DSP based pilot-tone signal eliminates squelch problems
Backward compatible to earlier technologies
The rugged, water resistant MM400C is based on Digital Hybrid Wireless™ technology, a revolutionary
new design that combines 24-bit digital audio with an analog FM radio link. The result is outstanding audio quality plus
the extended operating range of the best analog wireless systems in a package that can withstand the most extreme moisture
and temperature environments.
The MM400C is conveniently powered by a single AA battery, with internal switching power supplies providing constant
voltages to the transmitter circuits from the beginning (1.5 volts) to the end (0.85 volts) of battery life. The 100 mW
output with an RF circulator/isolator in the output stage provides excellent operating range while virtually eliminating
intermodulation problems common in multichannel environments. The 4.5 hour battery life (lithium) is comparable to
standard transmitter models operating on 9 V batteries.
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