Europe
In Europe the frequencies used by DBS services are 10.7–12.75 GHz on two polarisations H (Horizontal) and V (Vertical). This range is divided into a "low band" with 10.7–11.7 GHz, and a "high band" with 11.7–12.75 GHz. This results in two frequency bands, each with a bandwidth of about 1 GHz, each with two possible polarizations. In the LNB they become down converted to 950–2150 MHz, which is the frequency range allocated for the satellite service on the coaxial cable between LNBF and receiver. Lower frequencies are allocated to cable and terrestrial TV, FM radio, etc. Only one of these frequency bands fits on the coaxial cable, so each of these bands needs a separate cable from the LNBF to a switching matrix or the receiver needs to select one of the 4 possibilities at a time.
Read more about this topic: Satellite Dish
Famous quotes containing the word europe:
“In Europe the object is to make the most of their land, labour being abundant: here it is to make the most of our labour, land being abundant.”
—Thomas Jefferson (1743–1826)
“In America the cohesion was a matter of choice and will. But in Europe it was organic.”
—D.H. (David Herbert)
“The confrontation between America and Europe reveals not so much a rapprochement as a distortion, an unbridgeable rift. There isn’t just a gap between us, but a whole chasm of modernity.”
—Jean Baudrillard (b. 1929)