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Home Network Design Link Planning Tables for Calculating Link Budget
See also: Calculating the Link Budget 
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Tables for Calculating Link Budget

To calculate the link budget, simply approximate your link distance, then fill in the following tables:

Free Space Path Loss at 2.4GHz

Distance (m) Loss (dB)
100 80
500 94
1,000 100
3,000 110
5,000 113
10,000 120

 

Antenna Gain:

Radio 1
Antenna [dBi]		 + Radio 2
Antenna [dBi]		 = Total
Antenna Gain
     

 

Losses:

Radio 1 +
Cable Loss [dB]		 Radio 2 +
Cable Loss [dB]		 Free Space
Loss [dB]		 = Total Loss
[dB]
       

 

Link Budget for Radio 1  Radio 2:

Radio 1
TX Power 		+ Antenna Gain - Total Loss = Signal > Radio 2
Sensitivity
         

 

Link Budget for Radio 2  Radio 1:

Radio 2
TX Power 		+ Antenna Gain - Total Loss = Signal > Radio 1
Sensitivity
         

 

If the received signal is greater than the minimum received signal strength in both directions of the link, then the link is feasible.



Home Network Design Link Planning Tables for Calculating Link Budget

Last Update: 2007-01-25