[Elecraft] KX3 reboot only on JT modes?

[rich hurd WC3T]

But only on JT modes?   And this is a 7XXX serial number KX3.

I do not think this has anything to do with the physical power connections,
but I did inspect them and they were all tight.
Going to pay more attention to see what might be going on during these Tx
cycles.

On Tue, Mar 21, 2017 at 3:17 PM, Don Wilhelm <donwilh at embarqmail.com> wrote:

> Rich,
>
> First check your power cables carefully for any sign of looseness.
> If none found, try wiggling the KX3 2.1mm power plug to see if that
> induces the failure.  You may have a failed power jack.
> Early KX3s did not have the power jack glued to the board and could fail
> (even with the right angle power plug).  The failure would be intermittent.
>
> I don't think it has anything to do with your operating mode.
>
> 73,
> Don W3FPR
>
>
> On 3/21/2017 2:47 PM, rich hurd WC3T wrote:
>
>> Okay, here's an odd one and I couldn't find any suggestions in the
>> archives
>> or using Google-fu.
>>
>> I can run any mode with my KX3/PX3/KXPA100 station with no incident except
>> for JT modes; using WSJT-X, I will complete a Tx cycle and randomly the
>> KX3
>> will bounce (power off/power on.)
>> 9 times out of 10, I'm operating at 3W.   I'll sometimes bump to 5.  To
>> test this, I have also bumped it to 11 watts to kick the amp in and I get
>> the same reaction; that is, sometimes (but not always) the station just
>> decides it's had enough and the power bounces.   Power supply is a Samlex
>> SEC-1223.
>>
>


-- 
73 (or 72 for the QRP folks),
Rich Hurd / WC3T
Northampton County RACES
EPA-ARRL Public Information Officer for Scouting
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