Fred Jensen wrote:
I have the circuit from the Elecraft web site. Unfortunately, my SB-220
won't really do QSK. Any ideas on how to modify the little perf board
interface to put some (hopefully adjustable) delay in the release to
simulate semi-QSK with VOX for the amp?
The perf-board circuit also uses 8r, and if you have '8r hold' enabled in the
menu (the default in recent firmware), the delay will follow the t-r setting.
The problem you may have will be with the attack, not the release. The stock
SB220 relay is quite slow and bouncy, so it might hot-switch when you start to
talk or send.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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