"I've been at V1.75 firmware for quite some time but random lockups of the
KAT500 started recently. It might be helpful knowing what command caused the
problem."
Please establish a repeatable test method and report to Elecraft. As I have
said more than once, the issue I experienced does NOT
I've been at V1.75 firmware for quite some time but random lockups of the
KAT500 started recently.
It might be helpful knowing what command caused the problem.
Jim/KK1W
w4sc-2 wrote
> Andy reported.
>
> “Several have asked for more detail. All I can share is that the command
> that
>
Andy reported.
“Several have asked for more detail. All I can share is that the command that
repeatably caused my KAT500 to lockup does not cause a lockup when KAT firmware
version 1.75 (current released version) is in use.”
The possible paths to take are obvious:
1) UPDATE your firmware if
Is there a reason to keep this a secret?
On Fri, Apr 9, 2021, 09:13 Andy Durbin wrote:
> "My controller sent a valid command that the KAT500 firmware took
> exception to. I'll withhold the details but other KAT500 users will not
> experience this problem."
>
> Several have asked for more
"My controller sent a valid command that the KAT500 firmware took exception to.
I'll withhold the details but other KAT500 users will not experience this
problem."
Several have asked for more detail. All I can share is that the command that
repeatably caused my KAT500 to lockup does not
ANDY DURBIN wrote
> "It's still working over 30 minutes after the fridge cold soak."
>
> I was tricked by confirmation bias. The cold soak was not what fixed the
> problem.
>
> My controller sent a valid command that the KAT500 firmware took exception
> to. I'll withhold the details but other
Would you be willing to share it? I'm morbidly curious at this point.
On Thu, Apr 8, 2021, 23:02 Andy Durbin wrote:
> "It's still working over 30 minutes after the fridge cold soak."
>
> I was tricked by confirmation bias. The cold soak was not what fixed the
> problem.
>
> My controller sent
"It's still working over 30 minutes after the fridge cold soak."
I was tricked by confirmation bias. The cold soak was not what fixed the
problem.
My controller sent a valid command that the KAT500 firmware took exception to.
I'll withhold the details but other KAT500 users will not
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"I guess that the 10uF electric capacitor connected to LM7805 output is a
possible cause."
All the front panel LED seem to be on that same 5V rail and they stay normal
brightness in the fault condition. I suspect something, other than low
voltage is killing the MCU.
It's still working over
I guess that the 10uF electric capacitor connected to LM7805 output is a
possible cause.
73 de JH3SIF, Keith
> 2021/04/09 7:35、Andy Durbin のメール:
>
> "I'm suspecting the KAT500 has a thermal problem. Does anyone recognize
> these symptoms and know a probable cause?"
>
> I put it in the
"I'm suspecting the KAT500 has a thermal problem. Does anyone recognize these
symptoms and know a probable cause?"
I put it in the fridge for 30 minutes and now it powers up normally, connects
to KAT Utility and responds to utility commands. It's clear it's a thermal
problem but which
My KAT500 has stopped communicating with my controller and does not power up
normally. With PC data cable removed, when I pull and replace the power plug
the KAT500 powers up with a relay clunk and with MAN and ANT 1 LED lit. All
front panel buttons are unresponsive. The same thing happened a
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