[Elecraft] K3 - Bug in firmware found?

[Vernon Mauery]

On Tue, Apr 5, 2011 at 4:11 AM, Bill W4ZV <btippett at alum.mit.edu> wrote:
>
> Gary Hinson wrote:
>>
>> ... While you're at it, the VFO "Lock" function doesn't block QSYs using
>> the
>> band button, or sent from the logging program, or using the XIT, and
>> perhaps
>> other ways too.  It would be nice if it actually locked the VFO frequency,
>> please Wayne.  This *may* account for the occasional small TX frequency
>> jumps of some K3 DXpeditioners.  [Some might be deliberately moving escape
>>
>
> When using one receiver and REV to scan a split pileup while VFOA is LOCKed
> on the DX frequency, it's possible for VFOA to change slightly if the Main
> knob is still spinning when you release REV.

Just tested this race condition and found it to be real.  Using either
REV or A/B you can change the 'locked' VFO if the right knob is
spinning when you are switching VFO places.

Another way to get around the lock is to use a memory recall.  Not
sure if that would be classified as a bug or not, since memories are
for both VFOs and it would be weird to change only one VFO.  I suppose
that could be a setting.  That would classify it as a feature.

Honestly neither of these is terribly important to me.  But being a
software engineer for my day job, whenever the firmware is discussed,
it piques my interest.

I was about to report that the LOCK button didn't LOCK all the
controls on my radio (like the lock button on most any other device).
But then I read in the manual, that it was just a VFO lock.  It really
surprised me when I had the LOCK engaged and I bumped the PWR knob and
my power setting changed.  But that was by design.  I did find the
concept counter-intuitive.  (and by intuition, I really mean
experience.)

--Vernon N7OH

>  Since I added the KRX3 and use
> dual RXs in split pileups I haven't noticed this as much.
>
> 73,  Bill
>
>
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