SATELLITE

COMMUNICATIONS

John Arredondo

Jorge Lozano

Juan Carlos Caicedo

Frecuencies used

Satellite communications using the range

between 3 GHz and 30 GHz.

This range is known as SHF (Super high

Frecuency)

C Band, Ku Band, K Band and Ka Band

Characteristics of antennas

They have form of parable, because of it they are

parabolic calls.

There are two classes, that of primary area where the

sign bounces towards the center and the Offset (the

common mas in the homes) where the sign bounces

down of the center.

There is a call Cassegrain antenna where the signal

bounces both ways much better reception

The antennas consist of a parabolic reflector and a LNB

(Low Noise Block)

Key Applications

Television

TelephonyInternet

Conclusions

Satellite communications have made the world

get narrow, brings us to places and events

where a few years ago it was impossible to

think in just see them.

Thanks to satellite communications we can

bring education, telephony, telemedicine and

receive any kind of information immediately.