Re: Narrow filter for CW #ubitxcw


The sotabeams filters are exceedingly good technically.  It’s the flexibility and user interface that’s stinks.  And, of course, it can’t be modified, even though the processor has plenty of resource for additional computational things like a nice display to graphically show you the filter contour.



From: [] On Behalf Of David Posthuma
Sent: Wednesday, August 14, 2019 7:33 PM
Subject: Re: [BITX20] Narrow filter for CW #ubitxcw


The sofa beams Audio DPS boards...there are several models...are stand alone boards, no coach needed. Simply insert in your audio chain and add power. It works great. Far better than I had hoped. They are worth the investment.


David Posthuma




From: on behalf of Tom, wb6b <wb6b@...>
Sent: Wednesday, August 14, 2019 7:37 PM
Subject: Re: [BITX20] Narrow filter for CW #ubitxcw


On Tue, Aug 13, 2019 at 07:42 AM, MadRadioModder wrote:

I use my own coded version of this thing

That looks like a cool implementation. Is your audio bandpass filter stand alone or is it an add-on to the Sotabeams filter board?

It sounds like it is a stand alone DSP filter and display.

Is the code on GitHub or somewhere?

Tom, wb6b



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