Actually it is more than likely there is no "Pin #1" issue here!
The scope is just giving you an accurate representative of what it is 
actually picking up from the antenna feeding a very high input impedance 
over the full bandpass of the input amp.

BTW - For those of us who have a living in professional audio, video and RF, 
the proper term for what you call the "Pin #1" problem is a Ground Loop - or 
at least that is the term we have used for the 50 years I was in radio & TV 
broadcasting & video production.

George
AI4VZ
- - - - - - - - - - - - - - -

If you see a lot of 60Hz and its harmonics on a scope as you have
described here, I would STRONGLY suspect a "pin 1 problem" in the scope. 

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