18
Recommended separation distances between portable and mobile RF communications
equipment and the device
The Health Monitor is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Health Monitor can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the monitor as recommended below,
according to the maximum output power of the communications equipment.
Rated
max.
output power of
transmitter (W)
Separation distance according to frequency of the transmitter (m)
150 kHz - 80 MHz
80 MHz - 800
800 MHz - 2.5
GHz
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.20
1.20
2.30
10
3.80
3.80
7.30
100
12.00
12.00
23.00
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.
