I have resurrected an old motorised dish today which had been in a shed for years. It was abandoned because the arm that holds the LNB had disintegrated because of rust.
I needed a dish to test a cheapish LG TV which has one satellite tuner and can drive a motor with USALS. I am getting away from the point but I have seen both Sony and Philips TV which cost far more yet cannot drive a dish. Is this common with TV's now?
So I made a new arm with a pivot underneath the dish so I could adjust the LNB height/angle in relation to the dish. I have it working but probably only by good luck, and obviously I could buy a new dish but I am keen to understand the principles involved.
I would have thought that the LNB should be directed at the centre of the dish, however mine appears to give the best signal when pointing below the centre. Also the clamp has been left on the pole so the rotation is still the same but the elevation marks are completely rusted away so have to be set by guess work.
If the lnb is "pointing" to the wrong spot on the dish could this error be made good but also having the dish elevation incorrect and vice versa ?
The dish is around 80 cm perforated although I have no idea of the make and cant see any labels on it.
If anyone has made it to the end of this post many thanks for your time and I hope you can throw some light on the issue for me.