TELE-audiovision - The World’s Leading Digital TV Industry Publication

TELE-audiovision International — The World‘s Leading Digital TV Industry Publication

— 03-04/2015

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in almost exactly 0 dB con-

version gain/loss. In a real

life installation, however, it

makes more sense to use

the 1:16 splitter first and

the 1:32 splitter second, as

this allows for poorer input

signals.

Please note that for our

test we used quite long fi-

bres cables: 350 meters in

total and despite of this the

signal strength was practi-

cally unaffected.

So our test set up revealed

that the signal strength was

great but what about signal

quality? Before installing the

test setup as in Figure 1 we

put a regular universal Ku-

Band LNB on a 85 cm dish

and took reference meas-

urements. The dish was

aimed at HOTBIRD on 13°

East. Then, we installed the

optical LNB (GI FibreMDU)

1. Testing GlobalInvacom's new GlobalInvacom GI FibreIRS O2E.

3 rolls of 100m fibre optic cables provide a virtual distribution

system.

2. This is GlobalInvacom's GI FibreIRS LNB mounted on a small

satellite dish at TELE-audiovision's Test Center. Up to 32 of

the new GI FibreIRS O2E could be connected to it, all of them

replicating this one LNB, thus enabling a theoretical endless loop

of all identical signal sources - all fed by one single LNB.