[NLRS] More on sequencers (L O N G)

Chris Elmquist chrise at pobox.com
Tue Mar 28 10:43:25 EST 2006


On Tuesday (03/28/2006 at 09:05AM -0600), Dr. Gerald N. Johnson wrote:
> The rub is that unless you go into the radio and disable the front panel
> call and CW KOX and SSB/FM VOX circuits this scheme of sending mic and
> key through the sequencer fail to protect if the front panel call button
> is pushed. I gave up running an ARR preamp on 2m because I got tired of
> replacing the GaAsFETs when I forgot to take it out of the circuit
> before going to FM or CW because with the FT-726 RF appears BEFORE the
> control signal.

Right... and newer rigs have other features such as automatic antenna
tuning which will initiate RF without ever hitting the mic PTT input.

And so this was my concern-- looking for a good solution that covers
all of these cases so that I can protect my stuff from me!  :-)

I guess my fundamental complaint is that few rigs are built with these
external interfaces in mind.  This is really no surprise to me but again,
I was looking for the methods folks are using to work around some of
these limitations without setting ourselves up for going broke buying
replacement FETs.

Chris NØJCF

-- 
Chris Elmquist
mailto:chrise at pobox.com


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