[amsat-bb] Re: "High Q" CTCSS tones?

Gordon JC Pearce gordonjcp at gjcp.net
Mon May 3 02:33:06 PDT 2010

On Sun, 2010-05-02 at 00:27 -0700, Greg D. wrote:

> What are these "high Q" tones, and why would I want to use one or the
> other when there are duplicates?  The manual tells me basically
> nothing, and a quick scan of the Web turned up the same.

I'm guessing that this means they have a narrower passband within which
they will accept the tone as being "right".  If you look at the tone
spacing for CTCSS, some of them are only 3Hz apart.

Gordon MM0YEQ

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