Topband: Rig Comparisons

[Richard (Rick) Karlquist]

>      * 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

 From the little I can glean from this description, it sounds like what
Agilent has been doing in test equipment since the 1990's.  At Agilent, 
it is only good for a 10 dB improvement and assumes a "memoryless"
amplifier.  I don't see how pre-distortion is going to work on
a high power linear that has a significant temperature and
load impedance fluctuations.

Again, this is based on the summary given, so maybe there is more
to it.

Rick N6RK