HD question
In a gentle way, please explain why on a portable satellite you can receive HD on Dish but not Direct from the same sat dish just by slipping a few switches? Can they not make a portable sat to do th...
Forum Discussion
tarnold wrote:
In a gentle way, please explain why on a portable satellite you can receive HD on Dish but not Direct from the same sat dish just by slipping a few switches? Can they not make a portable sat to do this?
Simple. To a radio antenna FREQUENCY is very important. For example in the old days a VHF Television antenna,, a Dipole, was around 9 feet across, (for channel 2) with sorter arms for higher frequencies Channel 7 for example is only about a yard across for the same type of antenna. Note that's seriously rounded.
Dish uses 3 satellites, all broadcast in the same band, so the same antenna can (if properly pointed) see all 3 satellites.. All the portable "DOME" has to do is move a bit to see any one of the three.
DirecTV however, uses three satellites as well, but in two DIFFERENT bands, one for SD one for HD.. So watching HD on a dome is kind of like trying to listen to your favorite FM radio station.... On an AM RADIO.. Out of band, won't work, can't work.
Of course if you use the proper Multi-LNB Dish,,, that works.
