I would avoid 118.2, 179.9 and 241.8.
They are close to 60Hz harmonics.
I had a repeater on 118.2 and it would false everytime the A/C or Heat kicked on.
Changed to 88
5 and the problem was solved.
Randoloh Koehler
KI4EZU VE
ki4ezu@...?
360-633-0708
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-------- Original message --------
From: "wj9jrg via groups.io" <wj9jrg@...>
Date: 1/8/25 3:00 PM (GMT-08:00)
Subject: Re: [repeater-builder] CTCSS Tone Selection
I would avoid 118.8, as people with AC hum could trigger it.?? Other than that, try to avoid any interfering tones of co-channel repeaters (that's the whole purpose).
Andy
WJ9J
Are there any best practices or pitfalls to avoid when selecting a CTCSS tone for repeater input? Thanks in advance for your responses.
?
I can think of:
- Try to pick the same tone frequency as others in your area are using.
- Don’t pick one too high – a guy near me has 254 Hz on his EchoLInk node and it sure isn’t “sub-audible” LOL
?
?
--
Randolph C Koehler
KI4EZU AE VE?
KI4EZU {at} YAHOO {dot} COM
