ASC (Canada) Ltd.
1545 The Queensway,
Toronto, Ontario, Canada
M8Z 1T8

Phone (local): 416-251-5409
Toll Free: 1-877-251-5140
Fax: 416-251-7438

LMa Transmitter

		Digital Hybrid Wireless® UHF Belt Pack Transmitter The LMa combines an excellent feature set with superb performance in a classic Lectrosonics wireless belt-pack transmitter at a modest cost. 24-bit digital audio is combined with optimized FM to create unprecedented audio quality and RF performance. The RF transmission is an aggressively optimized FM system with +/-75kHz wide deviation for a high audio signal to noise ratio and wide dynamic range. When matched with a Lectrosonics digital hybrid receiver, the system will deliver a full bandwidth, flat audio frequency response up to 20kHz with extremely low distortion.

The innovative servo bias input and standard 5-pin connector provides a programmable, regulated voltage to accommodate a wide variety of electret microphones. It is no longer necessary to install resistive pads for some mics to prevent overload of the input stage, divide the bias voltage down for some low voltage mics, or reduce the limiter range at minimum gain settings. To simplify wiring connectors, a single configuration, optimized for the LMa, is now available for all microphones. An alternate wiring configuration is also available that works well with the 5-pin inputs on the LMa and earlier Lectrosonics transmitters.

The LMa is powered by a single 9V battery and provides 50mW of RF output for extended operating range. The battery door rotates to open and close and remains attached to the transmitter housing. Alkaline, rechargeable LiPolymer and lithium battery types may be used. The housing is machined aluminum, powder coated and laser engraved for ruggedness and legibility. The battery door and control panel are also constructed of machined aluminum, with a rugged anodized finish. The antenna is a super rugged flexible whip made of flexible galvanized steel. A detachable spring wire belt clip is supplied with the unit.

Digital Hybrid Wireless® is a revolutionary new design that combines digital audio with an analog FM radio link to provide outstanding audio quality and the exemplary RF performance of the finest analog wireless systems. This overcomes channel noise in a dramatically new way, digitally encoding the audio in the transmitter and decoding it in the receiver, yet still sending the encoded information via an analog FM wireless link. This proprietary algorithm is not a digital implementation of an analog compandor. Instead, it is a technique which can be accomplished only in the digital domain. The process eliminates compandor artifacts, expanding the applications to include test and measurement of acoustic spaces and musical instruments.