See this on the FT-5100 http://www.radiomods.co.nz/yaesu/yaesuft5100.html about half way down the page under CAT/Remote Control Mic
Jamey Wright Systems Analyst Morgan County EMCD 911 Decatur, AL 256-552-0911 _____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of DCFluX Sent: Thursday, November 16, 2006 1:18 PM To: [email protected] Subject: Re: [Repeater-Builder] Re: Has anyone interfaced a Yaesu FT-8500 to be a remote base on a repeater? * I would say that depends on when the radio was made. Older Yaesu's, such as the FT-757 and even the FT-727 had a "CAT" interface which allows data from a computer to set the operating parameters of the radio. Other radios in the Yaseu line, Such as the FT-5100 have a few lines for the buttons, like band sellect and channel up and down. Which can allow 'poor mans remote base'. Others take a serial data stream down the mic jack to do control of the radio. You would have to get a logic analyzer or digital storage scope to disect the protocol though.
