The feature that controls the arm is called a POSITIONER and virtually all
C band receivers have this built in since the whole idea of C band was to move the dish to bring in many satellites.
The Fortec receiver - and most other FTA receivers - do not control the arm because most folks use a minidish and an HH motor - the Fortec WILL control
HH motors. Its just that most people don't have C band dishes anymore and the circuitry to move the dish is fairly expensive to build in, it takes a big power supply to move the
actuator arm -- that's why the old C band receivers were so heavy!!
So if you find an old C band receiver (with positioner built in) and buy an actuator arm you should be all set to surf the KU band. Then later you can add a C band LNB and dual feedhorn and surf the C band as well.
kat