Several people have shown/described how and what they use to align their dishes. I have chosen to take everything to the source (the dish). I bought a sealed lead acid 12V battery, put it in a lunch bag with the wiring, then took my little 7" TV w/ AV input and my MicroHD to the dish. I watch the monitor while listening to the tone to maximize the signal, using the remote as necessary. This battery lasts several hours, even when setting up a motor.