[Elecraft] K3 Stops Transmitting

[George Thornton]

I had something somewhat similar happen and the best I could tell it was related to power supply issues.   Now I use thicker wire direct from the power supply to the K3 and it so far seems to be working better.

An advertised way to fix it is to re-load the firmware and recalibrate the transmit power.

From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dennis
Sent: Thursday, March 9, 2017 6:41 AM
To: Jim Stahl <jimk8mr at aol.com>
Cc: Reflector Elecraft <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] K3 Stops Transmitting

I did try the "drop" test- hold up the front of the radio a little bit,
and then drop it so that it contacts the table.
Kinda shake things up a bit. No luck. When I also brought it home, I
put it in the case, drove it 72 miles
back to my house, brought it in, and set it up 2 days later. So it was
jostled fairly good. As I say, when I got
it home it worked, and has worked, fine.

Dennis W1UE

On 3/9/2017 9:10 AM, Jim Stahl wrote:
> I had a similar event last October in the New York QSO Party with my K3, s/n67xx. After the first QSO (from a beautiful overlook in Fort Tryon Park in Manhattan) it simply stopped putting out RF. It went into transmit, just no RF. I tried power cycling, jiggling external connectors, etc. After about 10 minutes, and about one minute before giving up for the contest, while moving things around I unintentionally snapped the front bail, and things snapped back to life.
>
> It has worked fine ever since.
>
>
> 73 - Jim K8MR
>
>
>> On Mar 9, 2017, at 8:54 AM, Dennis <egan.dennis88 at gmail.com><mailto:egan.dennis88 at gmail.com%3e> wrote:
>>
>> In the middle of ARRL DX CW, my K3 stopped transmitting. It did not shut off, it
>> would go into transmit and there were small flickers in ALC when the meter was in
>> that position, but no power out. Pushing the TUNE button resulted in the display
>> saying "0 watts". I played with it for several minutes, was unsuccessful in restoring
>> any transmit capability, so subbed in the replacement rig and kept going.
>>
>> I brought my K3 home, plugged it in, connected a key and a dummy load, and it
>> transmitted perfectly. No problems. I've used it about 3 hours since, and there
>> have been no problems.
>>
>> First question, what could have happened to result in the no transmit state?
>> I will be using my K3 again this weekend in a contest. If the problem
>> happens again, what possible problems should I be looking for? Loose/
>> intermittent cable attached to the synthesizer?
>>
>> Dennis W1UE
>>

______________________________________________________________
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 gthornton at thorntonmostullaw.com<mailto:gthornton at thorntonmostullaw.com>

________________________________