[Elecraft] K3 Extreme sig mod

[Brett Howard]

It would give mod installers without means to test a way to assure
themselves that they have properly carried out the task.

On 8/30/09, Ken Wagner K3IU <kenk3iu at cox.net> wrote:
>
> I believe that the boot up detection is only to determine whether the
> jumper is installed, not whether it has been activated by a strong
> signal. I really don't see a need to report that the jumper is installed
> on the display since one would surely remember if the jumper has been
> installed.
>
> It does work, by the way. I put my K2 on a nearby antenna and keyed it
> with power at about 1 watt while the K3 was listening on a nearby
> frequency with the preamp ON.  With a couple of dits, the preamp turned
> OFF and with a continuous carrier, it turned the attenuator ON. No
> measurements made.
>
> 73,
> Ken K3IU
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`
> Brett Howard wrote:
>> Where I think it should be reported is in the kxxx area of the menu.
>> So in the area where you turn on the krx3 and knb3 and what not you
>> could have a non editable entry for kesp3 or some other creative part
>> number.
>>
>> On 8/30/09, Brian Alsop <alsopb at nc.rr.com> wrote:
>>
>>> I wonder since this is a "software detected" mod at setup if the
>>> firmware program could report it is there. (alternatively, maybe the K3
>>> can report it like it does key err)  I'm not keen on zapping the front
>>> end with a high signal level from an uncalibrated source to find out if
>>> it is working.
>>>
>>> There perhaps may be other mods that could be detected in software and
>>> reported as well.
>>>
>>> 73 de Brian/K3KO
>>>
>>> Brian Alsop wrote:
>>>
>>>
>>>> How does one test this without a calibrated signal source?
>>>>
>>>> Why was 80M chosen for the test frequency?  Most ops have preamp off and
>>>> many have attenuation in.
>>>>
>>>> It appears one needs something like an 80db over S9 sig for it to cut
>>>> in.
>>>>
>>>> 73 de Brian/K3KO
>>>>
>>>>
>>>>
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>