[Elecraft] Poor CW note more testing and a question (rather long-ish...)

[Chuck Chandler]

My EXT ALC menu is set to the default of OFF t-40. The soft waveform is
displayed on the P3 apparently the same shape whether the amp is in use or
standby.

73,

Chuck, WS1L

On Sun, Apr 26, 2020 at 19:36 Dick Dievendorff <dick at elecraft.com> wrote:

> External ALC is enabled on the K3 and K3S with a menu entry that defaults
> to
> OFF.  See page 29 of the K3S owner's manual.
>
> 73 de Dick, K6KR
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net>
> On
> Behalf Of Andy Durbin
> Sent: Sunday, April 26, 2020 17:20
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Poor CW note more testing and a question (rather
> long-ish...)
>
> "In general, ALC between an amp and a rig is a recipe for clicks and
> splatter. Most authorities advise against using it. This is not new -- it's
> in the manual for Ten Tec legal limit amps from the late '70s and for every
> amp I've owned since."
>
> The OP has a KPA500 and K3S interconnect by an Elecraft AUX cable.  This
> means that ALC is connected (Aux cable pin 15) and opens the possibility
> that it is not configured correctly.  What I don't know is whether
> incorrectly configured ALC could cause the reported problem.  I suspect
> that
> would depend on the time constant(s) of the ALC loop.
>
> 73,
> Andy, k3wyc
>
>
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Sent from Gmail Mobile Chuck Chandler chandlerusm at gmail.com