[HamWAN PSDR] Encryption on HamWAN
John D. Hays
john at hays.org
Sun Jul 28 22:05:49 PDT 2019
Yes, both were patented technologies.
Most every modern radio has a lot of licensed intellectual property, from
microprocessors to modulator circuits to displays ...
On Sun, Jul 28, 2019, 21:09 Nick Kartsioukas <nick at explodinglemur.org>
> As for FM and SSB, I may be missing something in their history, was there
> a time when an amateur radio operator was legally prohibited from
> developing their own SSB or FM modulator or demodulator without paying a
> licensing fee to some entity?
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the PSDR