Types of Satellite TV Systems
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Types of satellite TV systems There are 2 types of satellite TV systems in
the United States namely, TVRO (TeleVision Receive Only) and the
other named DBS (Direct Broadcast Satellite).
Let's look at the two main types of satellite TV systems: TVRO (TeleVision Receive Only) TVRO
was the first satellite system available for home viewing of
satellite TV and required a relatively large dish of 3 to 6 feet in diameter and worked in C-Band. Frequencies of around 4 G Hertz
are called C-Band and require bigger dishes because the wave length of these frequencies is longer than in Ku-Band
(12 to 14 G Hertz) which requires a much smaller dish of about 18
inches.
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TVRO systems also require a movable dish because it needs to
receive all the channels of many satellites. C-Band satellites have much less channels available than Ku-Band satellites and therefore more satellites are needed to provide enough channels.
With TVRO
systems you can also receive free channels and independent feeds from
instant news companies, which include receiving the unedited
material that is broadcasted from a news crew somewhere in the coverage area of
the satellite.
They transmit their materials to their headquarters
using a C-Band satellite. Many of these types of feeds are not scrambled and are available to everyone with the proper equipment.
TVRO systems are often referred to as Big Dish TV, C-Band Satellite TV and BUD (Big Ugly Dish).
DBS (Direct Broadcast Satellite) Satellite TV via DBS is done in the Ku-Band. These satellites work on higher frequencies and can transmit higher power signals.
The upside of this is that it requires a much smaller dish that can be used to receive the signal. A small dish of 18 inches is already enough to receive all satellite TV. This makes it possible to have satellite TV from an apartment on the 12th floor, if you have a clear line of sight to the south.
The satellite dish is so small that it is not an obstacle like with for instance the TVRO dishes of 3 to 6 feet. Once installed the dish needs no maintenance since it is aimed at just one satellite. Some dishes actually have 2 or more feeds which makes it possible to receive the signals from more than 1 satellite.
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The only downside to this is that there are no free channels available on DBS satellites as these are often owned and used by the satellite TV provider it self, while TVRO satellites often are used by those who rent space on the satellite for a limited time.
The main uses for TVRO systems are to transport unedited materials between continents
as well as within one continent.
DBS is meant for everyone with a simple, low cost installation of
the system. Often the installation is for free as it really is very
easy to do. The only thing that is needed is a bit of knowledge of
where to find the satellite and the tools that make this even
easier. If you are unsure though, rather contact an accredited
installer to make the process hassle free.
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