ND SatCom SKYWAN IDU 7000, Manual

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94 Network Design and Engineering Guide 2010-10-26
Outdoor Unit and Satellite Link Design
SkyWAN
®
Link Budget Calculation Tool
in the TxAmp sheet. At the end of the general output field the ’Commercial Aspects for
SkyWAN’ output represents the power requirement on the satellite transponder caused by the
downlink to a specific station. Results for operation with and without UPC are stated in terms
of a power equivalent bandwidth and are compared to the carrier bandwidth of the station’s
home channel. If the PEB with UPC is higher than the carrier bandwidth, an indication “Power
Limited” will appear in the output field.
For informational purposes the results for the individual links are also displayed on the Sum-
mary sheet. This can be used to identify links with a disproportionate power requirement and
helps with ODU and link optimization.
Figure 3-21 Link Budget Tool - Summary Worksheet Up- and Downlinks