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Recommended separation distances between portable and mobile RF communications equipment
and the Thermometer
The Thermometer is intended for use in an electromagnetic environment in which radiated
RF distances are controlled. The customer or the user of the Thermometer can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the Thermometer as recommended below
according to the maximum output power of the communications equipment.
Rated maximum
output power of
150 kHz to 80 MHZ
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 / m
80 MHz to 800 MHZ
d=1.2 d=1.2
0.12
0.38
1.2
3.8
12
GB | 20
800 MHz to 2.5 GHz
d=2.3
0.12 0.23
0.38 0.73
1.2
3.8
12
2.3
7.3
23