Dave,
Not sure how to answer your questions.? The final output of the ?BITX is a very nice sinewave.? I do have a good ground through the cold water line as I am in my basement.
The issue that Jerry is helping me with is the lower output on 40meters when using CW.? I had noticed that this is common on all 4 of the ?BITX that I have as well as others have reported.? Personally, I have seen this on 6 radios.? The scope traces are the first that I have seen that could possibly explain the issue.? We are now trying to work out the root cause and possible solution.? Everything is pointing to the mixer, with the next step of removing any connection to the BiDi amps to see if it is a termination issue with the mixer.
It is evident that I really need to start another thread.? The problem with that is there are a number of posts with pictures that are important to the issue that would also need to be copied.
73
Evan
AC9TU
