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Calculating WiFi Range

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tricomp

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calculating wifi db

You may want to have a look at this Excel file if you're into experimenting with WiFi networks. All honors go to Onno W. Purbo YC0MLC ex YC1DAV for making this nifty thing.

/Tricomp
 

calculate wifi range formula

A simple model for 2.4GHz propagation in a building

Transmission power(TX) : 10 dB
Receiver sensitivity(RX) : -90 dB

Power budget = TX - RX = 10 --90 = 100 dB
Minus 70 dB for first 10 meter of range leaves 30 dB
Double the rane for every 10 dB
Range 20 m leaves 20 dB
Range 40 m leaves 10 dB
Range 80 m leaves 0 dB

The range will be 80m

PS Subtract 10 dB for a floor change
 

Sorry, everybody

I wasn't aware that Excel-files are banned on this forum. So, of course the file can be zipped and re-upped which has been done now for all to enjoy. It's really a very good file for all who do WiFi work.

Thanx to klystron for the quick & dirty 1-2-3 rule-of-thumb formula for calculating range. I wonder if one is better than the other :)

regards,

Tricomp
 

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