ND SatCom SKYWAN IDU 7000, Manual

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2010-10-26 Network Design and Engineering Guide 97
Outdoor Unit and Satellite Link Design
SkyWAN
®
Link Budget Calculation Tool
Hub Stations
The master and backup master station must be defined with 2 demodulator boards with the
home channels carrier 1 and 2:
Figure 3-26 MRB DUB Network - Hub Stations
UpLink Area 1 (ULA1)
The slave stations of ULA1 use carrier 1 for the primary demodulator. Any ULA1 station which
should be able to communicate directly with a station in ULA2 must have a second demodulator
using carrier 2 as its home channel. In this example the stations in Rome and Johannesburg
have no direct link to the stations in America, whereas Casablanca has a direct link via its sec-
ond reception channel:
Figure 3-27 MRB DUB Network - ULA1 Stations