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OPINION
EXPERT
+
–
RECOMMENDED
PRODUCT BY
Jacek Pawlowski
Test Center
Poland
GI FibreIRS O2E
Optical to Electrical Converter
51
TELE-audiovision.com—
03-04/2015 —
TELE-audiovision International —
全球发行量最大的数字电视杂志
● Very strong and regulated output signal
● Signal quality is even improved due to error correction during
regeneration
● The number of available outputs is multiplied by at least 32
times
● none
and connected it to our test
setup. Finally, we measured
the very last output of the
Quad GTU. Because this was
the same signal as from a
regular universal LNB we
were able to compare the
output of a whole GlobalIn-
vacom distribution system
with the output of a regular
good quality universal Ku-
Band LNB – our reference.
The results shown in the
graphs are breathtaking. Not
only the channel power of
all transponders was much
stronger and regulated at 80
dBμV throughout the whole
Ku-Band but also signal
quality, expressed here as
Modulation Error Ratio, im-
proved!
This is something impos-
sible with regular amplifiers.
Signal quality will always de-
grade when measured along
a long distribution system
using analog amplifiers. But
the combination of the GI
FibreIRS O2E and the GI Fi-
breIRS ODU is not just an
amplifier. The original signal
is regenerated and during
this process digital errors
are detected and fixed in a
similar way a diital tv receiv-
er is doing it when process-
ing a transport stream. Am-
plified, regulated and with
removed errors, the signal is
then ready to be split again
by an optical splitter and
sent hundreds of meters fur-
ther through fibre optical ca-
bles. And when you convert
it back to the electrical form
at the end of a fibre optical
cable, its strength and qual-
ity is better than that meas-
ured directly a regular LNB
output.
What previously has been
seen impossible to achieve:
to re-create the original
source signal after many
splits - has not turned on its
head: the re-created signals
turns out to even be better
than at the source! GlobalIn-
vacom has transformed the
way of distributing (not only)
satellite signals by using the
fibre optic technology. With
the new GI FibreIRS O2E it
is now possible to expand
hugely the number of out-
puts and each of these even
with a better quality than
what the comes out of the
original source LNB.