ND SatCom SKYWAN IDU 7000, Manual

Page: 91 / 154

2010-10-26 Network Design and Engineering Guide 87
Outdoor Unit and Satellite Link Design
SkyWAN
®
Link Budget Calculation Tool
3.5.2 Antenna Data Worksheets (Ku- and C-Band)
The tool contains antenna data sheets for antennas in C-Band and Ku-Band.
Figure 3-12 Link Budget Tool - Antenna Data Worksheet(s)
For both antenna types, antenna parameters like Tx/Rx gain, Tx insertion loss, Noise temper-
ature for LNA and antenna at elevation angles 0-90° have to be inserted , refer to figure 3-12.
The antenna name for each data set has to be unique. This name is used to link earth station
properties to the antenna data.
In the case of C-Band antenna, data sets for linear and circular polarization may be specified.
Here the link from earth stations to antennas is done via a common antenna name for both po-
larization types which is specified at the top of the antenna sheet, refer tofigure 3-13.
Figure 3-13 Link Budget Tool - C-Band Antenna Data
Depending on the transponder parameter ’polarization’ the antenna data for linear, circular or
unknown polarization will be used.