I believe that at least one of the reasons is that they were chosen to avoid musical notes.
Chuck WB2EDV ----- Original Message ----- From: "DCFluX" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, April 24, 2006 7:55 PM Subject: Re: [Repeater-Builder] telco and ctcss tones > Here is an age old question that has yet to be answered satisfactorly. > > What are the CTCSS frequencies derived from? Meaning why are they what > they are? Like 123.0, 127.3, Why not 120, 125, 130 ETC? > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
