[Elecraft] K4 model v. K3S for strong nearby signal rejection.
Grant Youngman
ghyoungman at gmail.com
Fri Nov 1 16:36:54 EDT 2019
The way it has been described, you only need to turn it on when you need it … so you can run the radio as a straight SDR or a hybrid SDR, switchable on the fly.
Whether or not doing so changes the volume … ??? The bandwidth (and audio levels) is set by the SDR processes in both cases, so it would be a reasonable assumption that it wouldn’t change, and the hybrid module would switch in the appropriate roofing filter automatically.
Wild guesses, of course. But not unreasonable :-)
Grant NQ5T
> On Nov 1, 2019, at 4:09 PM, <ebasilier at cox.net> <ebasilier at cox.net> wrote:
>
> I believe that using a roofing filter that is about as narrow as the overall
> receive bandwidth can have a detrimental effect on ssb voice quality as well
> as on digital mode reception. Will the K4HD have a single button way to
> remove the superhet part so that receive quality can be easily compared
> without change of overall bandwidth and volume?
>
> 7
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