Did you know?
There are many satellites with free
TV channels in several languages, that can be watched for
anyone with the proper dish and receiver. They are called Free-To-Air
(FTA), Digital Video Broadcasting (DVB) or sometimes, MPEG2.
What about C and Ku band?
These two terms mainly represent the way and
frecuencies used to transmit the signals. C-band means big dishes (at
least 6' or 180 cm of diameter in North America) and Ku-band uses
smaller dishes (30" or 75 cm of diameter) to catch TV channels.
Ku-band is also used by commercial satellite TV
companies as DirecTV, Bell ExpressVu, DishNetwork and Starchoice to
transmit their signals.
Big dishes are expensive and dificult to install for
instance, in an apartment balcony. Instead, Ku band dishes are very
easy to install in small spaces.
What do you need to have FTA channels?
Because the satellites are located on the equator
line, of course you need clear and perfect sight to South if you are in
North America. It doesn't represent a problem if you are in a house,
but if you live in an apartment the balcony has to see the south.
Besides, you need the dish, the lnb for FTA (the
device on the focal point of the dish) and a FTA receiver. Commercial
lnb and receivers (DirecTV, etc) are not designed to get FTA signals.
For Ku band, 75 cm dishes are enough to have signals
from most of the satellites with beam on North America. It is possible
to find a satellite which needs bigger dishes (90, 100 or 120 cm)
To know more...
Please check the links below to find out more of Free
To Air: