I had an MFJ DSP unit and sorry I ever sold it. Yes it does clean up those
sidetones but so will any sharp audio filter, even non DSP such as the
famous Autek QF1. The MFJ DSP seems to be the only one with no discernable
delay which almost makes me wonder if it's really DSP when operating in the
CW peaking filter mode. The other units I tried all had such a huge delay
that using the sidetone through the DSP was not possible.
Another idea is to incorporate the internal audio filter in the Omni,
Argosy, Triton and just run the sidetone through it. Wonder why TT didn't
think of that?
I think the original designers liked the sawtooth sound for some reason.
Steve
N4LQ
----- Original Message -----
From: "Ronald Hands" <ronald.hands@sympatico.ca>
To: "Steve Ellington" <n4lq@iglou.com>; <tentec@contesting.com>
Sent: Monday, April 15, 2002 12:11 AM
Subject: Re: [TenTec] Sidetone revisited
> Steve Ellington wrote:
>
> > Ever since our discussion about sidetones, I've been wondering
> something
> > about them.
>
> When I bought my Corsair II, used of course, a few years ago, I was
> disconcerted by the rough sound of the sidetone -- particularly after
> hearing so much about Ten Tec's smooth QSK.
> But then I had a chance to add a MFJ 784b DSP unit. It does a
> wonderful job of taking all the fuzz off the sidetone and just leaving a
> nice, clean sine wave.
> I gather from reading the reflectors that some DSPs inject some delay
> but I haven't noticed any with the MFJ. Maybe my synapses are not what
> they once were, but to me it seems there's no delay between the time I
> hit the key and the time I hear the sidetone.
> Even the simple Radio Shack DSP will, I believe, do the same job of
> cleaning up the sidetone signal without digging into the radio.
> For what it's worth, YMMV, caveat emptor, etc.
>
> -- Ron VE3SP
>
>
>
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