Great, Bow! Here's a case where the test equipment was causing the problem
Been there done that.
In any event that RF tap is a seat of the pants design, don't take it as gospel. There are other ones out there that are probably better. You could even slightly modify some old CB SWR meter and get good results - those things bypass the detected audio to ground, just reduce the bypass cap to .001 or so, and put in a series dc blocking cap to the audio.
Hey, cool idea...
\Now that I have an MFJ-259B, I have an old, well abused SWR meter that needs a new lease on life!
Thanks again John...
