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Link Budget Analysis
6-26
InterReach Fusion Wideband Installation, Operation, and Reference Manual
CONFIDENTIAL
D-620616-0-20 Rev F
Log-normal Fade
Margin
This margin adds an allowance for RF shadowing due to objects obstructing the direct path between
the mobile equipment and the RAU. In RF site surveys, the effects of shadowing are partially
accounted for since it is characterized by relatively slow changes in power level.
Body Loss
This accounts for RF attenuation caused by the user’s head and body.
Minimum Received
Signal Level
This is also referred to as the “design goal”. The link budget says that you can achieve adequate cov-
erage if the signal level is, on average, above this level over 95% of the area covered, for example.
Table 6-25
Link Budget Considerations for Narrowband Systems (continued)
Consideration
Description
Содержание InterReach Fusion ADCP-77-044
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