[Elecraft] Sudden K3 AGC pop-off after adding P3

[Stephen Prior]

That's a pretty fair analysis Knut I think.  I listened to a lecture by
Simon of HRD fame yesterday morning (at the RSGB Convention) and it's very
clear that Simon, by his own admission, much prefers the computer controlled
big screen route and abhors multifunction buttons on transceivers such as
the K3.  Incidentally, although Simon's lecture was principally concerned
with his work with RFSpace (which was very interesting indeed if you are
into 'pure' SDR), he remains very complimentary about the K3's receive
performance.  It's beginning to look as if the more advanced RFSpace
offerings will give the K3 a good run for its money in receive performance
terms, but from my perspective, I'm afraid it's got to have knobs on!

73 Stephen G4SJP

On 9 October 2011 20:35, ab2tc <ab2tc at arrl.net> wrote:

> Hi,
>
> I think part of the problem is that HRD's author purchased an early K3,
> soured rather quickly on it and sold it again before many early firmware
> shortcomings in the serial communications area were ironed out. Hopefully
> the new owners of HRD will add full support for the current state of the K3
> firmware.
>
> AB2TC - Knut
>
>
>
> Joe Subich, W4TV-4 wrote:
> >
> >> Why should polling the AGC randomly turn it off on the K3?
> >
> > Because HRD uses the *K22* mode.  If HRD would use the K3 commands
> > and not enable the K2 extended command set, the GT command would
> > require an explicit off command.
> >
> > What appears to happen is a data clash between HRD and the P3 ...
> > P3 data or an echo gets appended to the the GT; poll to the K3.
> > The the corrupted data is "just right" AGC is turned off.
> >
> > Why does HRD use an old command set and why does it poll for AGC
> > status *THREE TIMES*?  Polling for the same data three times in
> > 31 milliseconds is stupid, sloppy, and increases the chance of
> > false triggering exponentially.
> >
> > 73,
> >
> >     ... Joe, W4TV
> >
> > <snip>
> >
>
>
> --
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