Yes, each companies dish is made to work only with their electronics (box).
For DISH Network, the receiver can be about 200 ft away from the dish to operate optimally.
Satellite TV is delivered by the means of communication satellite and received by a satellite dish and set-top box connected to the television set.
The Dish Network programming you receive will determine what Dish you need.
I guess that it is for if you have a second dish
No, it is made for use with cable only.
A sky hd box is installed in the same way as a regular sky box. You need a sky satellite dish attached to your house, and a cable running to the sky hd box.
In order to have satellite internet you do need to have a satellite installed.
No. You must have a satellite receiver connected to the satellite dish that will decode the satellite transmissions and present it for display on your TV set.
Free to air satellite is a great way to get programming. You should get at least a 3 foot dish installed.
It depends on what kind of motorhome and when you want to watch Dish TV. If you will be mobile and wanting television, you will need a self adjusting satellite dish; there are also stationary satellite dishes available. As far as a satellite system, I prefer Dish TV because of the price, channel selection and technology. Dish Network also has a affordable portable satellite dish that does not attach to your motor-home called the Dish Tailgater.
Yes, the receiver will still work.
To receive a Satellite signal, you need a LNB which is attached to your satellite dish--The LNB and dish is determined by which satellite TV service you have--either Dish Network or DirecTV. The satellite dish is pointed in a particular direction to pick up the correct satellite orbiting the sky. You will also need a satellite receiver, which is "wired" to the LNB and also is attached to your television.