[Elecraft] K2 filter optimisation

[Ian Maude]

 Thankyou to everyone for ideas.  In the end, I found a version of
Spectrogram16 which worked first time under Windows 10 running with
Parallels on the Mac.  I had forgotten how much of a joy it was to use when
setting up the filters.

73 Ian

On 22 Feb 2021 at 01:52:44, Jon <jhpike at cox.net> wrote:

> Hi all...
>
> Another choice might be something called REW (Room EQ Wizard) which is
> an AMAZING, free program that is Java based, so it should work across
> different platforms.  There is a Mac dedicated version,  but I know
> little about Macs,  whether yours might be compatable or not.
>
> It is a very capable and complex program,  originally designed for
> EQ'ing speakers and subwoofers with your room, for good, balanced bass.
>
> It of course, has a very capable audio measurement and spectral display
> capability,  with a whole lot more.  The designer has been adding things
> as he's been working on it for a long time now, it has a pretty amazing
> list of features, especially for a free SW. Beautiful and flexible
> graphing, I might add.
>
> Check it out,  help files are pretty good.  Might be a little daunting,
> but you won't be needing to deal with some other things that would be
> part of a usual setup.   You don't have to do any mic setup and cal, of
> course,  since you're not measuring room responses,  and it's pretty
> basic to just get your rig speaker output into a computer line input,
> to measure response like with Spectrogram.  Of course, you could use the
> built in signal generator to put pink noise into your mic input to
> measure your TX response, as a more advanced usage, later perhaps....
>
> https://www.roomeqwizard.com/  is the site.  There is a pretty active
> forum on a site called AV Nirvana, used to be you had to make an account
> there to download REW,  but he now has the stand alone site.  Worth the
> signup to get on the forum if you need to post a question,  they've
> never bothered or mailbombed me.
>
> Jon, KA6MOK  K2 1251
>
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