Sanitas SIH 21 Mode D'emploi page 62

Recommended separation distances between portable and mobile RF communications equipment
and the SIH21/2
The SIH21/2 is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the SIH21/2 can help prevent electromagnetic interference by maintai-
ning a minimum distance between portable and mobile RF communications equipment (transmitters) and the
SIH21/2 as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
W
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended separation distance
d in metres (m) can be estimated using the equation applicable to the frequency of the transmitter, where P
is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
Separation distance according to frequency of transmitter
150 kHz to 80 MHz
0.12
0.37
1.2
3.8
12
m
80 MHz to 800 MHz
0.12
0.38
1.2
3.8
12
62
800 MHz to 2.5 GHz
0.23
0.73
2.3
7.3
23