[Elecraft] K2 Band Data

[W3FPR]

Jerry,

I also would encourage you to look at the KRC2 for your solution. It 
will provide BCD band output as well as individual outputs for each 
band.  Use whatever is compatible with you amp.
The K2 on its own does not provide external band data except by decoding 
the propriety AUXBUS data.  The KRC2 does that for you.

Your solution may depend on your programming skills and the amount of 
time you wish to dedicate to the task.  The KRC2 already has the decodes 
and yes, it does cost $$$, but you have to decide how much your time and 
effort is worth compared with the KRC2 cost.

73,
Don W3FPR

On 9/1/2023 7:42 PM, jerry wrote:
> On 2023-09-01 12:55, Michael Carter wrote:
>> Hi Jerry,
>>
>> There is no simple access to band data in
>> the K2 unless you want to reverse engineer
>> the AUXBUS protocol.
>
> *** Considering that it's probably a low-speed
> async protocol, that might not be that hard.
>
>   Depending on how
>> your homebrew amp selects its lowpass
>> filter options, you may be able to pick up
>> the relay control signals for the K2's bandpass
>> and lowpass filter banks and use those
>> to encode a band data word in the format
>> used by Yaesu.
>