The Lectrosonics TM400 wireless system was
designed to provide the ideal link between calibrated test microphones
and measurement equipment such as SIM®, SIA SMAART Live®, TEF®
or other systems. By using a radio link, long cables can be eliminated
thus saving time and providing opportunities for additional measurements
to increase accuracy. The microphone can even be moved around in the venue
while the audience is present – something that is impossible with
a cabled measurement microphone.
The Lectrosonics Digital Hybrid Wireless™ (U.S. Patent Pending)
uses a proprietary algorithm to encode the digital audio information into
an analog format which can be transmitted in a robust manner over an analog
FM wireless link. This combination offers the superb audio quality of
a pure digital system and the outstanding operating range of the finest
FM wireless systems. The digital audio chain eliminates compandor artifacts,
and provides audio frequency response flat to 20 kHz. The RF link takes
advantage of the spectral efficiency characteristics of an aggressively
optimized FM radio system.
This digital/analog hybrid technique has some very beneficial properties.
Because the information being transmitted is digitally encoded, useable
dynamic range is much higher than a compandor can offer and there is no
compandor in the audio signal to interfere with your measurements.