K3 Power Output Dropoff

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K3 Power Output Dropoff

Pete Smith N4ZR
Well, it happened again. My K3 is now only putting out 35 watts on 80,
30 watts on 40, 49 watts on 20, 84 on 15 and 100 on 10M, although the
power control reads 100 watts on all bands and the SWR is very low, so
it is not a question of foldback due to mismatch.  Once before, when it
did this, powering the radio off and back on restored proper operation,
but not now.  Any suggestions?

--

73, Pete N4ZR
Download the new N1MM Logger+ at
<http://N1MM.hamdocs.com>. Check
out the Reverse Beacon Network at
<http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

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Re: K3 Power Output Dropoff

Pete Smith N4ZR
Thanks for this, Jim.  My radio is Serial # 4275.  I don't know if it
had the gold-plated contacts.  Will call Elecraft and ask.

73, Pete N4ZR
Download the new N1MM Logger+ at
<http://N1MM.hamdocs.com>. Check
out the Reverse Beacon Network at
<http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

On 11/29/2015 2:55 PM, Jim Miller wrote:

> Do you have the mod in that installs the gold plated contacts on the KPA
> module?  My sn is 14xx so I had my K3 several years before I started
> experiencing the problem. It started with unexplained problems and called
> Support.  The fellow listened to my whole story and then told me that was
> classic for the contact problem and he would send me the kit.  He also told
> me that he knew the problem as soon as I started with my description of the
> problem.  I don't think there was a charge but if so, it was insignificant.
>
> 73, Jim KG0KP
>
> -----Original Message-----
> From: Elecraft [mailto:[hidden email]] On Behalf Of Pete
> Smith N4ZR
> Sent: Sunday, November 29, 2015 11:24 AM
> To: Elecraft List
> Subject: [Elecraft] K3 Power Output Dropoff
>
> Well, it happened again. My K3 is now only putting out 35 watts on 80,
> 30 watts on 40, 49 watts on 20, 84 on 15 and 100 on 10M, although the power
> control reads 100 watts on all bands and the SWR is very low, so it is not a
> question of foldback due to mismatch.  Once before, when it did this,
> powering the radio off and back on restored proper operation, but not now.
> Any suggestions?
>

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