PSB said:It does not matter what the scale says, or if there is even a scale there , set the motor angle then peak the dish to your satellite and lock it down when you get the best signal! Use the signal quality meter.
...Which was my answer if you bought it off ebay.
Ignore the scale completely. Rumour has it that a big lot of the Fortec dishes were incorrectly marked.
Guess where they ended up?