Specifications

page 30
[
StarServe Installers Guide
]
Masthead Amplifiers
In weak signal areas, it is often necessary to amplify the
signal before the distribution amplifier. This will ensure a signal
of sufficient strength and acceptable quality. This is achieved
using a Masterhead Amplifier.
It is important to choose a Masterhead Amplifier with a low
noise figure. The noise figure of the Masterhead Amplifier
establishes the noise figure of the entire system, therefore
the amplifier should always increase the signal more than it
increases the noise.
The MATV Distribution System
A well-designed distribution system is necessary to guarantee
an adequate signal at every receiver connected to the system.
The distribution of MATV is the role of the StarServe Video
Distribution Unit.
The StarServe VDU simplifies the design and hardware
requirements of the distribution end. VDUs are combiner/
splitter amplifiers in which a single outlet connects to a single
receiver. In this way the system provides a predetermined
signal level and maintains the correct impedance to each of
the outputs. Complex calculation of losses associated with
splitters, drop taps and cable are not required.
Each outlet has a defined amount of gain and there is a
recommendation for the maximum cable run. The VDU will,
in effect, provide the same signal quality to each outlet, as
long as the cable recommendations are adhered to.
If there is a poor signal received from the antenna, this same
poor signal will be output at each of the VDU outlets.To
guarantee a good signal at each of the VDU outlets, as good
quality signal needs to be received at the antenna.