[TenTec] Corsair II sidetone revisited

[Adam N.]

My Corsair II's crapy sounding sidetone bugged me until I got an Idiom 
Press SCAF-1 filter.  Works great on RX, but had the unexpected side 
effect of smoothing out the sidetone on TX.

Still, I'm very interested in a Corsair II mod to improve the sidetone.


73,

Adam N.
N4EKV
Oakland, CA
www.n4ekv.com


k7gt at charter.net wrote:
> I just did a thorough search of the TT archives re a 
> solid fix to the buzz saw Corsair II sidetone. G3JXS 
> had suggested and implemented an active filter solution
> with which he was pleased. Others said that such would
> lead to enough delay to affect QSK. It would seem that
> a simple one- or two-stage passive filter might have less
> delay and thus suffice as the 2nd harmonic is at about
> 1300-1500Hz (my sidetone is set at about 700 Hz, I was
> trying to match the 750 Hz CW offset but couldn't go
> quite that high). Before I dive into the books in an
> attempt to design such, has anyone on the reflector already
> done so? 
> 
> BTW: I used one of my Corsair IIs in SS this past weekend.
> (I am not quite through with the permanent station
> setup with the OmniVIs after our recent move and am using
> the C-II in a temp setup). I had a ball. The biggest 
> problem I had in a contest setting was quickly and
> accurately zero-beating the CQing station. The SPOT
> button give a fairly soft and deep (!!) pitch to center
> on 0 Hz and the sidetone, as mentioned above, is neither
> matched to the offset nor harmonic free for a pitch
> matching method of zeroing ala OmniV and OmniVI.
> 
> 73  K7GT
> 
> 
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