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TELE-satellite International — The World‘s Largest Digital TV Trade Magazine
— 12-01/2012
— www.TELE-satellite.com
Optical Installation –
the Easy Way
In 2008 TELE-satellite ran
an exclusive report on fibre
optic LNBs made by Glo-
balInvacom (TELE-satellite
04-05/2008). In the mean-
time this new technology has
turned into a serious alterna-
tive to traditional satellite re-
ception systems using coax
cables. Even more, fibre op-
tic distribution technology
will eventually become the
new standard, once the first
receivers with an optical sig-
nal input will come to mar-
ket. Until then, a converter
will have to be used to trans-
form optical signals back to
electrical signals for com-
patibility with conventional
receivers.
Yet, the benefits of fibre
optic technology are too
huge to ignore even today,
so that many professional
installers are already mak-
ing use of GlobalInvacom
technology.
In order to assist those –
and also less experienced
amateur users – GlobalIn-
vacom has launched some
very useful installation ac-
cessories that will add even
more shine to its optical
product line-up. After all,
most installers and private
all that is required for coax
cables, optical signal distri-
bution places much higher
demands on installers. But
before we go into greater
detail let’s first look at the
technical background of an
optical LNB and its advan-
tages: A conventional LNB
receives satellite signals
which are reflected from the
antenna’s focal point, then
converts those signals into
a lower frequency range and
transmits the converted sig-
nal right to the receiver via
a coax cable. Since the fre-
quency range a coax cable
can carry is quite limited
in bandwidth (ranging only
from 950 MHz to 2150 MHz),
two ‘tricks’ have to be used
in order to transmit the en-
tire frequency spectrum of a
satellite over a single signal
line. One of those ‘tricks’ is
signal polarization, which
can be either horizontal or
vertical. Based on the con-
trol voltage sent from the re-
ceiver via the coax cable to
the LNB, either vertical (13 V
users lack appropriate tools
to professionally work with
optical technology. While a
few F-plugs and some in-
sulation aids (a sharpened
knife will do just as nicely) is
The FibreROD consist of
6 flexible rods (of varying
flex), 2 x FC/PC adaptor
and 1 x wire pulling sock.
They are designed to assist
the installer with pre and
un-terminated fibre cable
routing.
TEST REPORT
Fibre Optic Installation Materials