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1 - programming source transmits signal to a DBS provider broadcast center (Satellite TV Providers)

2 - these satellite tv providers automatically assigns received signal from the programming source to their respective bands and transmits to the satellite dish.

3 - when a user requests for a band/channel, by using a receiver it will then requests the band from the satellite to a satellite dish connected to the receiver.

By looking at a satellite image.

If the cloud bands spiral inwards and counterclockwise it is in the northern hemisphere. If they spiral inwards and clockwise it is in the southern hemisphere.

The spiral bands of a hurricane strongly indicate rotation. Also, stringing together multiple satellite images taken one after another can produce a sort of animation that shows how a storm moces and chances. These show obvious rotation in hurricanes.

We encourage you to click around, comparing weighting functions from high altitudes to low altitudes; from cloudy scenes to clear scenes; dry scenes to wet scenes; etc. Pay attention to where the different bands peak during these situations - this may tell you a lot about the amount of water vapor in the atmosphere or where vertically it appears. But this page is also here to debunk some myths about satellite bands, namely that certain bands peak at certain heights in the atmosphere. Where a band peaks is really dependent on the vertical profile and the satellite view angle!