Philips DL8790/10 - Manual (Page 80)

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Separation distance according to frequency of transmitter m
Rated maximum
output power of
transmitter (W)
150 kHz to 80 MHz
outside ISM bands
d=1.17 √P
80 MHz to 800 MHz
d=1.17 √P
800 MHz to 2,5
GHz d=2.23 √P
0,01 0,12 0,12 0,23
0,1 0,38 0,38 0,73
1 1,2 1,2 2,3
10 3,8 3,8 7,3
100 12 12 23