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KX3 reboot only on JT modes?

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rich hurd WC3T

KX3 reboot only on JT modes?

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.

ALC is within tolerance, MIC BTN is off, it's operating in DATA A and VOX
is set on.

I'm kind of running out of things to try. Any thoughts?

BTW, I am getting out there; PSKReporter shows activity so I'm putting the
fire in the wire. It's just this power thing is flakey.

--
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
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Brian Hunt

Re: KX3 reboot only on JT modes?

If you are using TX/RX control from the WSJT-X software, try turning it off and using VOX. Sounds like it may be something funny coming across the rig control interface.
GL&73,
Brian, K0DTJ

> On Mar 21, 2017, at 11:47, rich hurd WC3T <[hidden email]> wrote:

> 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.

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Don Wilhelm

Re: KX3 reboot only on JT modes?

In reply to this post by rich hurd WC3T

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.

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Brian Hunt

Re: KX3 reboot only on JT modes?

In reply to this post by rich hurd WC3T

Oops, sorry I didn't read your post carefully enough. No other ideas. Brian
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rich hurd WC3T

Re: KX3 reboot only on JT modes?

In reply to this post by Don Wilhelm

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 <[hidden email]> 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.
>>
>

ve3ibw

Re: KX3 reboot only on JT modes?

I can run JT modes for hours with my KX3/PX3. I don't have a KXPA100.
From a gross component perspective, try removing the kxpa100 from the chain
and see if that results in a different behaviour.

I do monitor my osc temp and have the pro audio heat sink. After hours of
operation calling cq and responding to QSOs at 5w, I see temps in the high
40Cs. But all is ok with the kx3 at this temp. I also performed the
extended temp compensation; a must for JT modes. I am serious about the
last comment. You must do the extended temp compensation.

What is your heat sink situation and what is your osc temp during operation?

Regards
Brian
VE3IBW

On Mar 21, 2017 7:48 PM, "rich hurd WC3T" <[hidden email]> 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 <[hidden email]> 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
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Regards,
Brian
VE3IBW

rich hurd WC3T

Re: KX3 reboot only on JT modes?

Heat sink is the stock factory heat sink (wraparound.) Haven't measured
the osc temp. Looked at the procedure and it seems easier at this point
to just stay away from JT modes. Hi hi.

On Tue, Mar 21, 2017 at 4:15 PM, Brian Waterworth <
[hidden email]> wrote:

> I can run JT modes for hours with my KX3/PX3. I don't have a KXPA100.
> From a gross component perspective, try removing the kxpa100 from the chain
> and see if that results in a different behaviour.
>
> I do monitor my osc temp and have the pro audio heat sink. After hours of
> operation calling cq and responding to QSOs at 5w, I see temps in the high
> 40Cs. But all is ok with the kx3 at this temp. I also performed the
> extended temp compensation; a must for JT modes. I am serious about the
> last comment. You must do the extended temp compensation.
>
> What is your heat sink situation and what is your osc temp during
> operation?
>
> Regards
> Brian
> VE3IBW
>
>
> On Mar 21, 2017 7:48 PM, "rich hurd WC3T" <[hidden email]> 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 <[hidden email]>
> 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:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
>
>

kevino z

Re: KX3 reboot only on JT modes?

In reply to this post by rich hurd WC3T

I think when you switch from the KX3 to the KXPA100 during transmit (by crossing the - I believe - 12w threshold) it also reboots the kx3

-----
The problem with the world is that the intelligent people are full of doubts, while the stupid ones are full of confidence.

On Mar 21, 2017, at 14:49, rich hurd WC3T <[hidden email]<mailto:[hidden email]>> 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.

ALC is within tolerance, MIC BTN is off, it's operating in DATA A and VOX
is set on.

I'm kind of running out of things to try. Any thoughts?

BTW, I am getting out there; PSKReporter shows activity so I'm putting the
fire in the wire. It's just this power thing is flakey.

--
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:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]<mailto:[hidden email]>
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rich hurd WC3T

Re: KX3 reboot only on JT modes?

I'd think that was the case, except it also does it at the lower power
output levels (3W, 5W.) A real mystery. I will be taking the PA out
of the circuit, however, and will report out.

On Tue, Mar 21, 2017 at 5:21 PM, kevino z <[hidden email]> wrote:

> I think when you switch from the KX3 to the KXPA100 during transmit (by
> crossing the - I believe - 12w threshold) it also reboots the kx3
>
> -----
> The problem with the world is that the intelligent people are full of
> doubts, while the stupid ones are full of confidence.
>
> On Mar 21, 2017, at 14:49, rich hurd WC3T <[hidden email]> 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.
>
> ALC is within tolerance, MIC BTN is off, it's operating in DATA A and VOX
> is set on.
>
> I'm kind of running out of things to try. Any thoughts?
>
> BTW, I am getting out there; PSKReporter shows activity so I'm putting the
> fire in the wire. It's just this power thing is flakey.
>
> --
> 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:[hidden email] <[hidden email]>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
>

Nr4c

Re: KX3 reboot only on JT modes?

In reply to this post by rich hurd WC3T

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 <[hidden email]> 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 <[hidden email]> 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:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email] 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 <[hidden email]> 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:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

rich hurd WC3T

Re: KX3 reboot only on JT modes?

I will check the temperature while operating next time.

I would like an opinion, however, on whether PSK31 is also defined as a
"high duty cycle" mode because I can and often do camp out on PSK31 all day
(and that means either in a QSO or calling CQ with the repeat function in
DM780 set to every 30 seconds) and it doesn't make the KX3 flinch.

By the way, a subjective assessment of the heat sink temp is that in all
digital modes the heat sink is warm to the touch, but only warm like "phone
in your pocket" warm. It doesn't approach an uncomfortable level at ALL.

On Tue, Mar 21, 2017 at 10:29 PM, Nr4c <[hidden email]> wrote:

> 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 <[hidden email]> 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 <[hidden email]>
> 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:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to [hidden email] 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 <[hidden email]>
> 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:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to [hidden email]
>
>

ve3ibw

Re: KX3 reboot only on JT modes?

Technically, psk31 is a high duty cycle mode. But, you may not transmit
as long as you would with JT modes. Depends on how chatty :-) you are.

Regards
Brian
VE3IBW

On Mar 22, 2017 2:49 PM, "rich hurd WC3T" <[hidden email]> wrote:

I will check the temperature while operating next time.

I would like an opinion, however, on whether PSK31 is also defined as a
"high duty cycle" mode because I can and often do camp out on PSK31 all day
(and that means either in a QSO or calling CQ with the repeat function in
DM780 set to every 30 seconds) and it doesn't make the KX3 flinch.

By the way, a subjective assessment of the heat sink temp is that in all
digital modes the heat sink is warm to the touch, but only warm like "phone
in your pocket" warm. It doesn't approach an uncomfortable level at ALL.

On Tue, Mar 21, 2017 at 10:29 PM, Nr4c <[hidden email]> wrote:

> > cycles.
> >
> >> On Tue, Mar 21, 2017 at 3:17 PM, Don Wilhelm <[hidden email]>
> 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:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to [hidden email] 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

fail

Regards,
Brian
VE3IBW

rich hurd WC3T

Re: KX3 reboot only on JT modes?

I figure I'll wrap this issue up and give it a decent burial. I
reconfigured WSJT-X and JT-Alert to NOT use the HRD interface, but natively
communicate with the KX3. I then fired up the rig and began calling CQ
with the power down to 3 watts.

The bands being as "wonderful" as they are, I didn't expect much on 20M
during the middle of the day with the noise floor here at S9 but
PSKreporter had me going into Europe the way I used to within a few
minutes, and I did actually make a QSO after about 10 minutes (that's about
twice as long as it lasted previously before a reboot). I believe the
problem is fixed. The KX3 didn't even get above ambient temperature.

Now to figure out how to append this ADIF file into my HRD Logger logfile.
But that's just computer stuff. Easy peasy.

Thanks for the great suggestions from everyone. This list rocks.

On Wed, Mar 22, 2017 at 10:57 AM, Brian Waterworth <
[hidden email]> wrote:

> Technically, psk31 is a high duty cycle mode. But, you may not transmit
> as long as you would with JT modes. Depends on how chatty :-) you are.
>
> Regards
> Brian
> VE3IBW
>
> On Mar 22, 2017 2:49 PM, "rich hurd WC3T" <[hidden email]> wrote:
>
> I will check the temperature while operating next time.
>
> I would like an opinion, however, on whether PSK31 is also defined as a
> "high duty cycle" mode because I can and often do camp out on PSK31 all day
> (and that means either in a QSO or calling CQ with the repeat function in
> DM780 set to every 30 seconds) and it doesn't make the KX3 flinch.
>
> By the way, a subjective assessment of the heat sink temp is that in all
> digital modes the heat sink is warm to the touch, but only warm like "phone
> in your pocket" warm. It doesn't approach an uncomfortable level at ALL.
>
> On Tue, Mar 21, 2017 at 10:29 PM, Nr4c <[hidden email]> wrote:
>
> > 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 <[hidden email]> 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 <[hidden email]>
> > 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:[hidden email]
> > >
> > > This list hosted by: http://www.qsl.net
> > > Please help support this email list: http://www.qsl.net/donate.html
> > > Message delivered to [hidden email] 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 <[hidden email]>
> > 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:[hidden email]
> > >
> > > This list hosted by: http://www.qsl.net
> > > Please help support this email list: http://www.qsl.net/donate.html
> > > Message delivered to [hidden email]
> >
> >
>
>
> --
> 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:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
>
>