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

[Dick Dievendorff]

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: dseven at dseven.org [mailto:dseven at dseven.org] On Behalf Of iain
macdonnell - N6ML
Sent: Monday, December 31, 2012 1:03 PM
To: Dick Dievendorff
Cc: Elecraft at mailman.qth.net
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 <dieven at comcast.net>
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
>
>
>
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