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Free-to-air
(FTA) television (TV) and radio broadcasts are sent
unencrypted and may be received via any suitable receiver.
Free-to-view (FTV) is, generally, available without subscription
but is encoded and may be restricted geographically. Neither of
these are pay-TV, which is an encrypted subscription (or
pay-per-view) service. FTA is usually delivered by satellite
television, but in various parts of the world with encrypted
digital terrestrial television channels it is broadcast on UHF
or VHF bands.
Although these channels are described as free, the viewer does
in fact pay for them. Some are paid directly by payment of a
license fee (as in the case of the BBC) or voluntary donation
(in the case of educational broadcasters like PBS), others
indirectly by paying for consumer products and services where
part of the cost goes toward television advertising and
sponsorship (in the case of Japanese television broadcasters
like TV Asahi and TV Tokyo which relies on sponsorship heavily).
Free-to-air is often used for international broadcasting. It is
television's equivalent to shortwave radio.
More on FTA
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Generally,
the signals from Cable TV can be received by the public antenna
in new estates or buildings. Also, most television can also be
tuned to the channels of Cable TV but the image colors are
inverted. (Yellow become blue, black become white etc.)
After
installing Cable TV, the antenna signal will pass through a
decoder before connecting to VCR and TV. The decoder will filter
out the frequency bands of Cable TV channels (in VHF) and decode
one of the channels (selected by the decoder) to a certain
frequency band in UHF. So, if you are a Cable TV subscriber,
your VCR and TV can tune to that frequency to watch Cable TV.
Therefore,
if you bypass the Cable TV decorder or you are not subscriber,
you can use your television or VCR to scan through the VHF band
and you can view most of the Cable TV channels with inverted
color. However, due to the capability of different tuner, the
sound may not be tuned properly. Fortunately, in our testing, we
can tune to many channels including the Paid Movie Channels
(HBO, Cineplex) and listen the sound of the channels.
In view of
these, the only thing we need to do is to implement the color
inverting to the video image in real time. DirectX 6.X can
exactly do the task. And all we need is a video capture card to
capture the video image into the computer and do the color
invertion by using a DirectDraw filter.
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1. I
programmed in a bouquet, but don't get any sound on some/all of
the channels?
Ensure you have the correct audio PID. If these are not
available, there is a possibility that the channel's are being
broadcast with AC-3 audio. As mentioned in "2.15 Can I get AC-3
sound on my current receiver? there is little chance that it
will be possible to decode the sound on these channels.
2. I get
sound, but no video. How do I fix this?
Ensure you have the correct video PID.
More on Troubleshooting
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A.
Pre-Installation Homework
Verify if
the dish size is indeed
adequate for your area and targeted satellite.
Obtain
Look Angles readings for
your city and targeted satellite. This includes: - the Azimuth
reading which the number of degree is clockwise away from the
north. (Use of compass) the Elevation reading which is the
vertical angle up from the horizon.
B. List of
Equipment and Accessories required
More on Install Guide
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