[Elecraft] Audio Thump

[Jimmy Lee]

Lyle and all others,
I have done a poor job of explaining my problem.  There is a low frequency sound just as the key is closed on ever single sound that is keyed.  Does
not seem to be related to QSK.
Thanks,
Jimmy

Lyle Johnson wrote:

> Hello Doc!
>
> > Is this an issue with earlier versions of the KDSP2? I hear
> > no thump with either the KDSP2 or KAF2.....or with out either
> > installed....
>
> With some K2s operating QSK there have been reports of a pop or click at the
> switchover to receive.  It is related to the different delay through the DSP
> versus no DSP.  Mods have been worked out an published.
>
> Note that this is not present on all K2s; it depends somewhat on the
> individual characteristics of the FETs used in the K2 audio muting circuit.
> See
>
>   http://www.qsl.net/la3za/K2/modAny.html#KDSP2
>
> 73,
>
> Lyle KK7P
>
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft    Help:  http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com