Re: Narrow filter for CW #ubitxcw


WOW! that Wolfwave filter cost upwards of $300 USD!!! My digital filter does everything it does and more (including a color display)... and was less than $50...

-----Original Message-----
From: [] On Behalf Of Richard Spohn
Sent: Thursday, August 15, 2019 1:56 PM
Subject: Re: [BITX20] Narrow filter for CW #ubitxcw

I believe this is where the Wolfwave comes in. It is a complete enclosure and GUI with the sotabeams DSP board at its core. A tad pricey but it does everything - including regenerating clean CW from a less-than-ideal signal. I fould it rather intriquing. - Rich WB2GXM

On 8/14/19, MadRadioModder <@MadRadioModder> wrote:
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
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.
works great. Far better than I had hoped. They are worth the investment.

David Posthuma


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From: <> on behalf of Tom,
wb6b <wb6b@... <mailto:wb6b@...> >
Sent: Wednesday, August 14, 2019 7:37 PM
To: <>
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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