Re: K2 KPA100 SWR Bridge Readings Way Too High

Posted by Don Wilhelm on Oct 04, 2017; 1:54am
URL: http://elecraft.85.s1.nabble.com/K2-KPA100-SWR-Bridge-Readings-Way-Too-High-tp7634849p7634871.html

Dick,

With that corrected, do you have some semblance of power control?
You should, but there are other pieces of the KPA100 wattmeter sending
the VRFDET signal back to the base K2 MCU that could be producing a
problem with the power output.

73,
Don W3FPR

On 10/3/2017 9:49 PM, Dick Lamb wrote:

> Don,
>
> I found the problem:  the short wire that connects the ungrounded side
> of C1 to the SO259 jack had a poor solder connection.
>
> I figured that since C1 wouldn't tune, there had to be a problem in
> that bridge circuit prior to U5.   I started tracing each component's
> connections with my Ohmmeter, and I finally discovered that the
> ungrounded solder pad for C1 didn't connect.
>
> Thanks for your help, Don.  You're a terrific resource and your
> extraordinary efforts and patience in helping bewildered folks like me
> are really appreciated.
>
>

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