Tracking issue

[coinmaster32]

got my orbitron tracking the arc, well kinda.

From the extreme west sat (139) to about 85 west, it tracks fine i can move the dish up and down my hand and there is no change in the signal, that means its tracking the arc.

Well part of it, beyond 85 west, I parked the dish on 79 west, and I have to lift up on the dish to bring in a better signal.
What could be wrong?

 

[FaT Air]

I'd try adjusting the azimuth on 79 and see what it does to 139. If that degrades 139, could be the declination/elevation. The actuator moves the dish more up/dn on the extreme end of arc, so don't adjust elevation or dec. there, just azimuth.