[Elecraft] [K3] [KRC2]

[Jack Brindle]

While the use of the AuxBus connection is preferred for K3-KRC2  
communications, it does not carry information needed by the KRC2ACC to  
announce radio status. For this the KRC2 needs to be connected to the  
radio using the serial port. To get full functionality from the  
KRC2ACC here, which include radio change CW announcements, band  
switching and ACC control from the radio, both serial port and AuxBus  
need to be connected. And don't forget that the serial port needs to  
be running at 4800 baud for all KRC2/KRC2ACC firmware versions prior  
to V1.5.

The V1.5 firmware adds recognition of 6 meters from the K3, and new  
microcontrollers from the factory have the bandmaps set to output the  
6m selection on the XV1 pins. Users upgrading from earlier firmware  
versions will need to use the configuration tool to remap their  
bandmaps to enable this selection. Unfortunately there appears to be a  
problem with the KRC2 configuration tool communicating with the KRC2  
which currently prohibits this. We are investigating the problem and  
potential fixes.

Anyone contemplating use of the KRC2 or KRC2ACC with their K3 should  
download and read the KRC2 manual, revision C from the Elecraft  
website, Manuals & Downloads page. It has a revised section on  
connecting the KRC2 with various radios including the K3.

Jack Brindle, W6FB
Elecraft KRC2 Engineering


On Jan 23, 2009, at 1:53 AM, AD6XY wrote:

>
>
>
> AD6XY wrote:
>>
>>
>> The KRC2 does not understand 6m, at least my version with the
>> accessibility firmware does not. 6m will appear as an undefined band,
>> which happens to correspond to 160m. I am sure Elecraft are working  
>> on new
>> KRC2 firmware.
>>
>> Mike
>>
>
> I have just noticed the new firmware is now available for download.  
> Version
> 1.5. The KRC2 can now map 6m to 60m or 10m. This effectively means  
> you have
> a choice of which HF band to work as 6m. To select this you need to  
> use an
> invisible feature in the menu for the KRC2 on the K3. Press Button 1  
> (A/B,
> 1, B.SET) on the K3 to toggle 6m being mapped to 10m or 60m.
>
> Note to Elecraft: Would it not have been lot more useful to equate  
> 6m to one
> of the ACC or XV lines?
> -- 
> View this message in context: http://n2.nabble.com/-KRC2--tp2201066p2202428.html
> Sent from the [K3] mailing list archive at Nabble.com.
>
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- Jack Brindle, W6FB
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