[bobsgarage]

Well, Thanks Tripelo for the suggestions, I figured some testing was in order to isolate the reception issue.

First, I decided to square up every thing, I readjusted the cross bar and readjusted the antennas for a nice 90 degree boom to crossbar angle. I then readjusted the boom angle to make the two antenna perfectly the same. I then measured the booms and adjusted them to be perfectly parallel. After all was square I tweaked the boom cables a bit. The rear reflectors are parallel also. Ready for baseline test:



Next test.

East antenna only:



West antenna only:




Now, swap dipoles/balun east antenna w west antenna balun:



West antenna w east balun:



Now both antenna with swapped baluns:



For the final test, I decided to try the Winegard CC-7870 coupler. No real change I think...








I can do more tests tomorrow. Good exercise climbing that ladder!