Let's assume that the Link Margin threshold is specified in the receiver properties as 2.9 dB.
As part of the Link Information Data Provider, you can add Link Margin and Link Margin Value to the Link Budget report.
Link Margin Value is a constant = 2.9 dB based on user setting.
Link Margin (dB) = Eb/No (dB) - Link Margin Value (dB).
Using Analysis Workbench, the following scalar calculations are created:
- Bandwidth – a Data Element taken from the Link Information Data Provider.
- Bandwidth – result of a function that converts the receiver bandwidth to dB-Hz.
- Link Margin - a Data Element taken from the Link Information Data Provider.
- Adjusted Bandwidth (dB-Hz) – output of dual variable function that computes Bandwidth (dB-Hz) adjusted by Link Margin factor (dB).
- Adjusted Bandwidth (kHz) – output of function that converts from dB-Hz to kHz.
- Bandwidth Ratio – constant value dependent on modulation type. See http://help.agi.com/stk/Content/comm/CommRadar04-05.htm#ModStrd.
- Adjusted Data Rate – output of function that computes the Data Rate by applying the Bandwidth Ratio to the Adjusted Bandwidth.
