description of a fuction***

1.-What element performs the function on and off the unit?
button on/off
2.-What indicator lights when the power is connected to the unit?
LED
3.-What is the function of channel indicator LED?
indicates the channel number
4.-Is used to change the polarization from vertical to horizontal?
polaryti button
5.-What is the trackingcontrol button?
is used to help locate the satellite and
6.-Is that allows fine-tuning of the bias?
motion control
7.-What is the function of the control of good video?
allows the proper setting of the video image