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The Curious Bag
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<h4 class="dechead">On One Hand: C Band Facts
C Band was the original bandwidth used in communication satellites. It downloads between 3.7 and 4.2 GHz and uploads at 5.925 to 6.452 GHz. This relatively low frequency means that C Band functions well in adverse conditions such as rain or snow but requires a larger dish to acquire a good signal.
On the Other: Ku and Ka Bands
Ku and Ka bands transmit at a much higher frequency. Ku functions between 11.7 GHz and 14.5 GHz for uploads and downloads, while Ka functions in the 20 GHz to 60 GHz range. These frequencies imply more power so you can have a smaller dish. These bands are easily disrupted by climatic conditions such as rain.
Bottom Line
Electronics people call the C band dish a "BUD;" standing for Big Ugly Dish. C Band dishes range in size from 3 to 9 feet across. The size you need depends on your location in relation to the satellite. You gain some quality and immunity to weather conditions with the C Band dish, but need a large installation to manage it.
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