Why can't multiple homes share one satellite dish?
February 11, 2012 8:44 PM Subscribe
Why can't one building, consisting of multiple housing units, share one modern satellite dish?
posted by denverco to Technology (9 answers total)
I ask because I see these housing units every day as I drive to work with 4-5 satellite dishes right next to each other.
When I grew up, my family had a large rotating satellite dish. I know that this allowed us to access multiple satellites with multiple stations. The rotating nature of this dish wouldn't allow for multiple families to use the same dish.
However, modern satellite dishes (e.g. Dish Network, Direct TV) use stationary satellite dishes and digital signals to allow houses to view many channels.
So here comes the question...why can't one satellite dish feed multiple boxes? It seems that he boxes decrypt the signal and allow the viewers to see what is being sent from the satellite. Each satellite sends a signal that truly consists of every channel at the same time. In other words, anywhere you are standing, you can potentially watch every single channel that is being transmitted from a satellite simultaneously.
Why do these buildings, consisting of 4 townhomes, need 4 satellite dishes side by side instead of just 1 satellite dish with 4 cables running to boxes?