Skipp, I suspect that you were the exception rather than the rule, then. To me there are better ways to do it than a 567. I remember playing with various 567 circuits back in the 70's. Never could get reliable performance. Used them for paging frequencies. Gave up and started using commercial encoders and decoders and never looked back. Maybe you can give the guy some guidance to get some stability and choke down the bandwidth so that adjacent tones don't false the thing.
Chuck WB2EDV ----- Original Message ----- From: "skipp025" <[email protected]> To: <[email protected]> Sent: Thursday, May 06, 2010 6:37 PM Subject: [Repeater-Builder] Re: CTCSS Encoder/Decoder > >> Waste of time and effort. Very old technology that >> never worked well. > > I guess I'll have to pull the 567 ctcss decoder I built > way back when... even though it still works just fine... > > I copied a Yaesu 567 CTCSS Encoder/Decoder circuit and > it works well to this day. Still have the diagram around > here somewhere but you can also reference the TD-3 circuit > I provided a link to in an earlier post. > > s. > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2858 - Release Date: 05/06/10 14:26:00
