TracPhone V7 User’s Guide
11
Chapter 2 - Operation
Satellite Communication Basics
Ku-band communications satellites are located in fixed positions
above the Earth’s equator and relay data to/from the earth within the
regions that they serve. Therefore, to communicate via a given
satellite, you must be located within that satellite’s unique coverage
area, also known as its “footprint.”
TIP: To view the latest mini-VSAT Broadband satellite coverage map, visit
our website at
.
Figure 2-1 Example of a Satellite Footprint
In addition, since satellites are located 22,300 miles (35,900 km) above
the equator, the TracPhone antenna must have a clear view of the sky
to transmit and receive signals. Anything that stands between the
antenna and the satellite can block signals, resulting in lost data.
Common causes of blockage include trees, buildings, and bridges.
Heavy rain, ice, or snow may also temporarily interrupt reception.
Figure 2-2 Example of Satellite Blockage
Equator
Blocked!
