[Elecraft] [KAT500] Looking for a microcontroller project that reads transceiver serial frequency messages and outputs BCD bands

[Dick Dievendorff]

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