Rated Maximum Output
Power of Transmitter
(w)
0.01
0.1
1
10
100
*These guidelines may not apply in all situations as electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
Separation distance according to frequency of transmitter
d = 1.2√P, where the RF
frequency < 800 MHz
0.12
0.38
1.20
3.80
12.00
(m)
d = 2.3√P, where the RF
frequency ≥ 800 MHz
0.23
0.73
2.30
7.30
23.00
21