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K3 Firmware Download Problems. Hopefully solved.

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Mike-531

K3 Firmware Download Problems. Hopefully solved.

Some readers may recall my ongoing problems loading new firmware to K3
#0215.

I *may* have solved this problem.........During problems with the
01.78/01.58 download, I changed the physical config of my K3 & PC. -
They had been plugged into 2 different wall sockets in the shack. I
moved the Ks & its power supply into the same socket as my PC & the
01.78/01.58 download then worked well. Yesterday I downloaded
01.87/01.69, using this same config, & all went well.

It may not be a cure-all for everyone's problems, but could be classed
as 'one more thing to check' & has been reported to K3Support.

73 de Mike, zl1mh.
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w7aqk

Re: K3 Firmware Download Problems. Hopefully solved.

Gads! I never would have thought of trying that! I can't wait for someone
to give a logical explanation of what the problem could have been. I'm
afraid all that tells me is that the wall socket you were using initially
may have a problem. Have you checked it?

Dave W7AQK

----- Original Message -----
From: "Mike" <[hidden email]>
To: <[hidden email]>
Sent: Sunday, May 04, 2008 6:22 PM
Subject: [Elecraft] K3 Firmware Download Problems. Hopefully solved.

> Some readers may recall my ongoing problems loading new firmware to K3
> #0215.
>
> I *may* have solved this problem.........During problems with the
> 01.78/01.58 download, I changed the physical config of my K3 & PC. - They
> had been plugged into 2 different wall sockets in the shack. I moved the
> Ks & its power supply into the same socket as my PC & the 01.78/01.58
> download then worked well. Yesterday I downloaded 01.87/01.69, using
> this same config, & all went well.
>
> It may not be a cure-all for everyone's problems, but could be classed as
> 'one more thing to check' & has been reported to K3Support.
>
> 73 de Mike, zl1mh.
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>

Bob Cunnings NW8L

Re: K3 Firmware Download Problems. Hopefully solved.

Could be a ground loop problem. At the factory we have had trouble
with ground loops upsetting RS232 communication between the device
under test and the test controller PC... and are careful about our AC
mains power arrangements. We try to keep all AC power cords for test
gear, PC, etc. on the station plugged into a common power strip.
Sometimes optical isolation of RS232 paths is needed for really
complicated configurations, where RS232 and USB paths exist both
between the controller PC and the test fixture (which has embedded
microcontroller) and between the test fixture and the DUT.

Bob NW8L

On Mon, May 5, 2008 at 9:18 AM, David Yarnes <[hidden email]> wrote:

> Gads! I never would have thought of trying that! I can't wait for someone
> to give a logical explanation of what the problem could have been. I'm
> afraid all that tells me is that the wall socket you were using initially
> may have a problem. Have you checked it?
>
> Dave W7AQK
>
> ----- Original Message ----- From: "Mike" <[hidden email]>
> To: <[hidden email]>
> Sent: Sunday, May 04, 2008 6:22 PM
> Subject: [Elecraft] K3 Firmware Download Problems. Hopefully solved.
>
>
>
> > Some readers may recall my ongoing problems loading new firmware to K3
> #0215.
> >
> > I *may* have solved this problem.........During problems with the
> 01.78/01.58 download, I changed the physical config of my K3 & PC. - They
> had been plugged into 2 different wall sockets in the shack. I moved the Ks
> & its power supply into the same socket as my PC & the 01.78/01.58 download
> then worked well. Yesterday I downloaded 01.87/01.69, using this same
> config, & all went well.
> >
> > It may not be a cure-all for everyone's problems, but could be classed as
> 'one more thing to check' & has been reported to K3Support.
> >
> > 73 de Mike, zl1mh.
> > _______________________________________________
> > Elecraft mailing list
> > Post to: [hidden email]
> > You must be a subscriber to post to the list.
> > Subscriber Info (Addr. Change, sub, unsub etc.):
> > http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/subscribers.htm
> > Elecraft web page: http://www.elecraft.com
> >
> >
>
> _______________________________________________
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> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
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>

Dick Dievendorff

RE: K3 Firmware Download Problems. Hopefully solved.

In reply to this post by w7aqk

I put a note based on Mike's experience into the USB troubleshooting page of
K3 Utility Help, but maybe it was an RS-232 cable rather than USB to Serial
Dapter. Mike which was it?

Thanks,
Dick, K6KR

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of David Yarnes
Sent: Monday, May 05, 2008 9:18 AM
To: Mike; [hidden email]
Subject: Re: [Elecraft] K3 Firmware Download Problems. Hopefully solved.

Gads! I never would have thought of trying that! I can't wait for someone
to give a logical explanation of what the problem could have been. I'm
afraid all that tells me is that the wall socket you were using initially
may have a problem. Have you checked it?

Dave W7AQK

----- Original Message -----
From: "Mike" <[hidden email]>
To: <[hidden email]>
Sent: Sunday, May 04, 2008 6:22 PM
Subject: [Elecraft] K3 Firmware Download Problems. Hopefully solved.

> Some readers may recall my ongoing problems loading new firmware to K3
> #0215.
>
> I *may* have solved this problem.........During problems with the
> 01.78/01.58 download, I changed the physical config of my K3 & PC. - They

> had been plugged into 2 different wall sockets in the shack. I moved the
> Ks & its power supply into the same socket as my PC & the 01.78/01.58
> download then worked well. Yesterday I downloaded 01.87/01.69, using
> this same config, & all went well.
>
> It may not be a cure-all for everyone's problems, but could be classed as
> 'one more thing to check' & has been reported to K3Support.
>
> 73 de Mike, zl1mh.
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>

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