[Elecraft] K3 shuts off

[Mike]

RR Ron.

73, Mike

Ron D'Eau Claire wrote:
> Make sure he's transmitting into a good dummy load for those tests. 
>
> The overvoltage protection on some supplies is easily tripped by RF getting
> into it. Even if the antenna is some distance away, a voltage loop near the
> transmitter can induce plenty of RF in the mains lines or through the rig
> and supply cable. 
>
> If it doesn't happen driving a good dummy load, it's time to revisit
> grounding, etc., at the rig and supply. 
>
> Ron AC7AC
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mike
> Sent: Sunday, December 13, 2009 4:45 AM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 shuts off
>
> Thanks gents. Good tips all. I'll pass them along.
>
> 73, Mike NF4L
>
> Mike wrote:
>   
>> I was at a friends today, looking at his K3. It's in the 1000 range of 
>> serial numbers, not a kit.
>>
>> If power is set above 95-96 watts, the rig shuts down instantly when you 
>> transmit (at least in CW and if you press the TUNE button. Didn't try it 
>> on any other modes).
>>
>> His power supply reads 14.6V, it's a 20A supply, but we didn't read it 
>> under load. Does the K3 have the ability to display voltage and current 
>> draw?
>>
>> I downloaded and installed 3.68 firmware, but the problem was there
>>     
> before.
>   
>> Clues and hints, please?
>>
>> 73, Mike NF4L
>>
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>
>
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