Rock band

Nope! I don't mean a group of musicians. but Yes! the band the we received in Satellite TV (Free-to Air) rocks! I was wondering on the significant effect the difference the two band that satellite TV transmits.

A C band (3~4 GHz) low frequency and Ku band (11~12 GHz) high frequency. A simple analogy that I read for this is using a celphone, if you recall older celphones use to have an visible antenna attached to it (if you don't, they have!), the new ones don't (well they do but not visible). same as the band, C band are somewhat old (original for communication) but still remains and the dish requirement are much bigger since the coverage of area are much wider.Ku band requires much less dish size and designed primarily for SatelliteTV, the coverage area are smaller.

To sum it up, the higher the frequency the less Dish size is required (that's good)but oless area of coverage also. The next difference is the weather effect (ex. heavy rains/dense clouds) on both bands, Ku band might have fade or lost signal while C band can still have a good signal on heavy rains. The Explanation for this is the dispersion, since C band has a wider footprint (coverage) dispersion are wide but for ku band dispersion are smaller or concentrated which makes them susceptible to weather disruption.

That's their major differences, they still do have something in common - the Azimuth and Elevation angle is the same for both C and Ku band on how to set up of a satellite dish,(considering you're in the same spot and targeting a single satellite). Well I somehow got the idea. Not to worry since majority of receiver are C and Ku band integrated, also LNB are with C and Ku band set-up it thats the case you should be getting both. I think I only utilizes the Ku band.

The Signal

For me the signal is the most important factor in Satellite TV, what's the used if you can't get any. Shoot the dish plate and it'll probably bounce back to you (word of reminder: please don't try this at home. LOL!).

The signal I'm talking about is the one we get from the satellite. There are actually 2 significant band in this Satellite TV topic that always comes up when researching. Its the C and ku band, the explanation for this is very much technical, but there's always a way for us to understand it. Basically, the main difference is the range of frequency, C band (3~4 GHz) and Ku band (11~12 GHz), whoahh!!. I'll try get much info on this before my head spin.

Where does the signal came from? 100% sure not from aliens (or could it be from them - hidden messages, hhmmm?). In reality it not from space (i mean the signals), the origin of the signals are (yes my friend!) from Earth, to be more specific from a broadcast center. They are the ones responsible in transmitting or broadcasting a programming source signals to the satellite (they use a powerful type of satellite dish) and the receiving satellite then distributes or rebroadcast them to back to earth. This is where our satellite dish comes to work, it catches the signal then you watch your TV with your favorite program.