[Elecraft] KX3 reboot only on JT modes?

[Nr4c]

Turn on the display of Temperature. Watch it while transmitting. 

Sent from my iPhone
...nr4c. bill


> On Mar 21, 2017, at 3:45 PM, rich hurd WC3T <rich at wc3t.us> wrote:
> 
> 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
> Latitude: 40.761621 Longitude: -75.288988  Grid: *FN20is*
> 40°45.68' N 75°17.33' W
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to nr4c at widomaker.comBut 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
> Latitude: 40.761621 Longitude: -75.288988  Grid: *FN20is*
> 40°45.68' N 75°17.33' W
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to nr4c at widomaker.com