[Elecraft] K3 with subrx - intermittent main RX problem and pwr out

[Guy Olinger K2AV]

Must underscore what Don said. Busted BNC connector/coax wiring is so
very common. If they were hand-done with soldering iron and NOT RG400
coax (teflon, won't melt) or were not crimped with specific tool
required for the specific connector and specific coax, they are more
likely to go bad over time. This is because BNC connections get moved
and moved and moved....

The basic rule is never open up the Elecraft case until braine phartes
and *all* external connections are *ruled out*, and in extreme cases
the manual is read.  Save yourself tons of time in the long run.

73, Guy K2AV

On Thu, May 4, 2017 at 9:46 AM, Don Wilhelm <donwilh at embarqmail.com> wrote:
> Olaf,
>
> The relays used by Elecraft are quite reliable, so I suspect that is not a
> reasonable source of the problem.  In more than 12 years of repairing the
> Elecraft legacy gear (more than 1200 repairs), I have had to replace only a
> small handful of relays due to failure.  I have replaced several where the
> builder has distorted the case with a soldering iron.
>
> I would double and triple check the SUBIN and SUBOUT connectors.  A
> connector failure is much more likely than a relay failure.
>
> You might contact K3support to see if they have encountered a situation like
> yours before.
>
> 73,
> Don W3FPR
>
> On 5/4/2017 3:31 AM, la3rk wrote:
>>
>> I have a K3 approx 8 years old. Fully equipped with subrx, 100W PA,
>> antenna
>> tuner and in/out module.
>>
>> When I connect the subrx, the main rx sometimes loses signal and at the
>> same
>> time power out goes to zero.
>>
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