If you are using a Diseqc or USALS motor, remember that the dish will move at different speeds depending on the polarity of the signal you are looking for, either 13(V) or 17(H) volts will supplying the motor. The V signals will move the dish much slower. Iceberg's recommended 2 minutes should allow enough time for even the slowest motors to traverse the entire arc when trying to do a timed recording of a V polarity signal. If your dish doesn't travel from 30W to 129W like mine does, you may want to adjust the time accordingly.
I use a SG2100 motor with a 76CM Winegard and using a V signal, it takes just over a 75 seconds to move from 30W to 123W in very cold weather. If your dish is a 1.2m, it will take longer.