[Elecraft] K3: Firmware 4.48 release - stable, in use?

[Joe Subich, W4TV]

> While tinkering with the HRD settings (in terms of poll rate) helped
> reduce the problem, it never entirely went away until the K3
> firmware update fixed it once and for all.

HRD's rig control component was very poorly written.  I gave Rick and
other involved persons specific documentation of HRD sending the same
command multiple times less than 1 msec apart as well as serial logs
showing continuous serial transmission even when the polling rate was
set longer than 500 msec.

I have not had time to evaluate the 5.1 "fixes" but I suspect Rick will
need to do a nearly complete rewrite of the serial port/CAT controls if
the problems are to be fixed.

73,

    ... Joe, W4TV


On 3/29/2012 1:23 PM, Bob wrote:
> The latest firmware beta fixed my AGC issue with HRD.  According to the
> notes, Elecraft made it more difficult for a "bad" command to accidentally
> disable the AGC.  It appears that HRD was hammering the serial port quite a
> bit and that was sometimes resulting in a defective message that tripped
> the AGC.
>
> While tinkering with the HRD settings (in terms of poll rate) helped reduce
> the problem, it never entirely went away until the K3 firmware update fixed
> it once and for all.
>
> I highly recommend updating to 4.48 before you blow you your
> speaker/headphones/ears.
>
> 73, Bob, WB4SON
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