Thanks, Iain. This is the project I remembered, but as sometimes happens as I age, some of the details were wrong.
A similar project might be used to decode the serial data stream from any number of transceivers, perhaps with the addition of an RS-232 level shifter. And of course a small microcontroller with two serial ports might be used to read frequency information from most any CAT-enabled transceiver (using RS-232 or CI-V messages) and send KAT500 serial messages to perform "memory tune" operations to the bin boundary without requiring transmission. It's amazing what a $5 microcontroller or $30-35 Arduino, Chip-Kit, Raspberry Pi or a $13 "Stellaris Launchpad" evaluation board can do these days! 73 de Dick, K6KR -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of iain macdonnell - N6ML Sent: Monday, December 31, 2012 1:03 PM To: Dick Dievendorff Cc: [email protected] Subject: Re: [Elecraft] [KAT500] Looking for a microcontroller project that reads transceiver serial frequency messages and outputs BCD bands You may be thinking of this: http://www.geekshed.co.uk/icom-ci-v-or-band-data-to-yaesu-bcd-band-data-conv erter/ but it doesn't solve the Kenwood problem. I think the KRC2 *may* be able to output BCD representing band data gleaned from Kenwood serial traffic, but I'm not sure. W6FB would know, of course..... 73, ~iain / N6ML On Mon, Dec 31, 2012 at 12:41 PM, Dick Dievendorff <[email protected]> wrote: > I vaguely recall seeing an e-mail over the last few months describing > a small microcontroller project that reads Kenwood RS-232 frequency > messages and outputs the four Elecraft / Unified Microsystems / Yaesu > TTL level band lines (sometimes described as a "BCD" encoding) > described as BAND0 thru > BAND3 in the K3 Owner's manual description of the ACC connector. > > > > We have a query from a Kenwood transceiver owner that would like to > supply band information to his KAT500 from his Kenwood radio so that > the ATU tracks band changes without requiring transmission. > > > > I believe that a commercial band decoder (very likely one of > microHAM's > units) might do this as well. > > > > Can someone help me find the URL of that project description? I > recall it was a UK ham, but my memory is a bit fuzzy. > > > > 73 de Dick, K6KR > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
