Bluetooth Range in Relation to Different Power Classes
Original Post: Range question (SIG Forum) Date:
2000-03-27
Three power classes are available for bluetooth. Classes 1,2 & 3 ,
they have the following characteristics:
| Device Power Class |
Max Output Power (mW) |
Max Output Power (dBm) |
Expected Range (?Obstructed Environment?) |
| Class 1 |
100mW |
20dBm |
100m |
| Class 2 |
2.5mW |
4dBm |
10m |
| Class 3 |
1mW |
0dBm |
10cm |
A definitive definition of ranges based on power class is hard to come.
Not only due to power & device differences but whether you measure
open space or close office.
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