Table 6-20 Link Budget Considerations For Narrowband Systems - ADC InterReach Fusion Installation, Operation And Reference Manual

Consideration
Log-normal Fade
Margin
Body Loss
Minimum Received
Signal Level
D-620610-0-20 Rev D
Link Budget Considerations for Narrowband Systems (continued)
Table 6-20
Description
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.
This accounts for RF attenuation caused by the user's head and body.
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.
Help Hot Line (U.S. only): 1-800-530-9960
Link Budget Analysis
6-27
CONFIDENTIAL