Jim, The Mobility industry has been using pre-distortion. It has finally been implemented in the Hermes and Apache Labs Transceivers by Warren C. Pratt. He has won the ARRL Technical Innovation award and justly deserves it:
From http://www.arrl.org/news/arrl-board-lauds-unforgettable-milestone-formalizes -lotw-policy-honors-award-recipients * The 2014 ARRL Technical Innovation Award went to Warren C. Pratt, NR0V, of Santa Cruz, California. Pratt was cited for his research leading to the development of PureSignal, "an adaptive baseband pre-distortion algorithm used to improve the linearity of amplifiers and reduce intermodulation distortion products emitted by software-defined transmitters." Mike N2MS -----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of Jim Brown Sent: Tuesday, July 29, 2014 1:01 AM To: 'TopBand' Subject: Topband: Rig Comparisons Online chatter about what rigs were used at WRTC and why got me to pursuing something that's been bugging me for a long time -- the band pollution produced by many of today's transmitters. K6XX tackled it in talk to NCCC last fall, and over the weekend, when IOTA was slow (which was a lot of the time in W6) moved on it. <snip> _________________ Topband Reflector Archives - http://www.contesting.com/_topband
