[TenTec] O II RF distortion in SSB audio

[George]

I also experience somewhat distorted audio in the headphones when 
transmitting SSB. This happens when I have the beam pointed over my house. 
The tower is 100 feet in back of the house.
The distortion gets worse if I talk while holding the TT 706 mic.
I tried all the normal grounding arrangements.
This never happened with my Icom ProII.
It is what it is!
I live with it.
George  W2YJ