[Elecraft] Re: K3 & KRC2

[Jack Brindle]

Darrell;

Nice suggestions. The best way to see what triggers the KRC2 can  
handle is to view the KIO2 command set. Whenever one of the  
parameters changes, and is reported out the serial port, the KRC2  
picks it up, creating an internal event. The KRC2 personality will  
then determine whether that event does anything. The standard  
personality does just a few things (mostly just band changes), while  
the KRC2ACC personality makes use of most of the parameters. Note  
that for the KRC2 to see these events, it must be connected to the  
KRC2's serial IO and be set to use that data. See the KRC2 manual for  
jumper settings for serial mode.

There are some problems inherent with a couple of the items you list  
involving availability of the information. For example, if the K2  
control processor does not find a KAT-2 or KAT-100, it will not allow  
any further processing that requires those devices. Thus when you hit  
the ANT button on the front panel, it doesn't even try to communicate  
with the ATU, but simply puts up the LCD error message and goes on.  
Thus the KRC2 doesn't see anything that would tell it to do  
something. I believe the RXAnt selector behaves the same way,  
depending on the K160 module being present.

However, if the 160 meter module is present, the RxAnt selector is a  
trigger for the KRC2, and it can make decisions based on RxAnt being  
switched on or off. The use of this trigger is not included in the  
standard KRC2 personality.

As for the tune button, I don't believe it causes anything to be sent  
out on the serial port, which means the KRC2 cannot be triggered from  
it. This would be a great addition, but would require changes in the  
K2 program memory, something we probably won't be seeing for a while.  
It seems the engineer is a bit busy with other things at this  
time... ;-)

If you have other suggestions or requests, give me a shout directly  
and we can discuss them.

On Oct 24, 2007, at 1:37 PM, Darrell Bellerive wrote:

> Please list what other triggers there are.
>
> My wishlist for the KRC2 and K2:
>
> 1. Sense the Ant 1/2 switch on the K2, even when no Elecraft tuner is
> installed or connected, and sink or source outputs based on the  
> state of this
> switch.
>
> 2. Sense the receive antenna menu option, even without the K160  
> module, and
> sink or source outputs based on the state of this menu option.
>
> 3. Allow the tune button on the K2, to lower power and the KRC2 to  
> put out a
> tune signal to an external antenna tuner.
>
> 73,
> Darrell
>
>
> On Tuesday 23 October 2007 07:42, Jack Brindle wrote:
>> The outputs can be controlled
>> from a wide array of triggers, not just band selection.
> -- 
> Darrell Bellerive
> Amateur Radio Stations VA7TO and VE7CLA
> Grand Forks, British Columbia, Canada
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- Jack Brindle, W6FB
Elecraft Engineering
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