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Products
RE-AV1
Composite video signal amplifier
RE-DV1
Distributor and amplifier for composite video signal 1 input - 4
outputs
RE-DV2
Distributor and amplifier for composite video signal 1 input - 2 outputs
Further information
technical info
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Price list
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RE-AV1
technical info
selective frequency
RE-DV1
RE-DV2
technical info
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Video
signal amplifier
RE-AV1
This video signal amplifier can be used when very long cables have to
be fitted, using RG59 coaxial cable. The attenuation of the signal as it
travels along the cable means that there is a limit to the maximum length of
cable that can be used for a wired camera. In general a good quality RG59
coaxial cable can be up to 200-300 meters long (see
tutorial
on video signal attenuation).
The amplifier is fitted onto the cable where the signal starts to weaken. It
amplifies the signal, restoring the original camera output quality, and
thereby making it possible to double the length of the cable.
It is not advisable to fit more than one amplifier onto the same line, in
order to avoid introducing too much noise caused by repeated amplifications.
The amplifier naturally has a video input and output (BNC), as well as two
gain controllers
to
adapt amplification to the actual needs of the field. The first regulator
acts in a uniform way on the entire signal while the second acts only on the
high frequencies, those most affected by cable transmission
(see
tutorial
on video signal
transmission).
The
amplifier connects directly to a 220V power supply.
Video
signal amplifiers/distributors
RE-DV1
One of the limitations of wired cameras is
not being able to split the signal from the camera into various different
directions. T-splitter BNC connectors can only be used on cables up to a few
metres long, but on longer cables there is an excessive loss of signal.
Our RE-DV1 video distributor is designed to resolve this very problem,
splitting the input signal without affecting quality.
From a single video cable you can now have up to four identical outputs
leading to monitors or recording devices.
It also acts as an amplifier, restoring 1V peak-to-peak quality on all four
outputs even if the incoming signal is damaged.
The RE-DV1 distributor connects up to a 220V power supply and has one input
and 4 outputs, all with female BNC connectors.
RE-DV2
This is a miniature version of the
previous model, with 1 video signal input and 2 outputs.
It uses a 12VDC power supply, and comes with its own 220VAC/12VDC converter.
In view of its size (only 49x42x50 mm), the RE-DV2 distributor/amplifier is
ideal for use in junction boxes.
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