Lectrosonics UCR411a - Manual (Page 3)

UHF Digital Hybrid Wireless™ Receiver
Rio Rancho, NM 3
Digital Hybrid Wireless ®
The Lectrosonics Digital Hybrid Wireless TM uses innova-
tive technology to combine the new advantages of digital
audio with the classic advantages of analog RF transmis-
sion, thus delivering the superior sound quality of a digi-
tal system and the excellent range of an analog system.
A proprietary algorithm encodes the digital audio infor-
mation into an analog format which can be transmitted
in a robust manner over an analog FM wireless link. The
receiver employs state-of-the-art filters, RF amplifiers,
mixers and detector to capture the encoded signal and a
DSP recovers the original digital audio.
This digital/analog hybrid technique has some very bene-
ficial properties. Because the information being transmit-
ted is digitally encoded, immunity to noise is much higher
than a compandor can offer. Because the encoded audio
is sent in analog format, spectral and power efficiency
and operating range are not compromised.
Unlike traditional analog compandor systems, no arti-
facts are introduced under strong RF conditions.
Under weak RF conditions, the received signal de-
grades gracefully, like an analog system, delivering
as much usable audio as possible at maximum range.
Since the audio is free of compandor artifacts, pumping
and breathing problems are also greatly reduced.
(*US Patent 7,225,135)