On 3/23/2018 11:33 AM, Don Wilhelm wrote:
I think there will be more information to come about its function. For the time being, it is safe to assume it is not a calibrated output, but simply a tap to observe the output waveform, rather than an amplitude measuring device.
The most obvious use is as a sampling point to feed NR0V's excellent Pure Signal software. Warren received a Technical Excellence award for developing it. The software modifies the driving signal by "pre-distorting" it so that pre-distortion elements cancel distortion within the feedback loop.
This is a fairly old technique -- it was, for example, implemented more than 50 years ago in a few professional and consumer power amplifiers, and also within "powered" loudspeakers (that is, those with built-in power amps) using motional feedback from the transducers.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
