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Appendices
17.4. Recommended Separation Distances
Recommended separation distances between portable and mobile RF communications equipment and the HeraBEAT US device
The HeraBEAT US device is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
user of the device can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the HeraBEAT US device as recommended below, according to the maximum out
Rated maximum output
power of transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
outside ISM bands
150 kHz to 80 MHz
in ISM bands
80 MHz to 800 MHz
800 MHz to 2,5 GHz
0.01
0.12
0.2
0.4
1
0.1
0.37
0.64
1.3
2.6
1
1.17
2
4
8
10
3.7
6.4
13
26
100
11.7
20
40
80
put power of the communications equipment.
For transmitters rated at a maximum output power not listed above, the recommended separation distances in meters (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.
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