[Elecraft] K2 filter optimisation

[Jon]

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