Hi folks,
I'm updating a small Predict client that I wrote. It's part of my station's automation for driving my Yaesu FT-736R under Linux. There's a table in the 736's manual for the various CTCSS tones, and I see there are 9 codes that are labeled "High Q". Some of the tones match others in the base table, some are unique.
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.
Thanks,
Greg KO6TH
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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
Hi Gordon,
Ok, that makes two of us with the same guess. If so, then it only affects the Receive side of the rig, so for turning on the Transmit side 67hz tone for getting into AO-51, it shouldn't matter which one I use. Easier to program if I can just use the first one I find in the table...
Thanks,
Greg KO6TH
From: [email protected] To: [email protected] Date: Mon, 3 May 2010 10:33:06 +0100 Subject: [amsat-bb] Re: "High Q" CTCSS tones?
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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Gordon JC Pearce -
Greg D.