Recommended Separation Distances Between Portable and
Mobile RF Communications Equipment and the EQUIPMENT or
SYSTEM – for EQUIPMENT and SYSTEMS that are not
LIFE-SUPPORTING
Separation distance according to frequency of transmitter m
The Infrared Thermometer is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The
customer or user of the infrared thermometer can help prevent electromag-
netic 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.
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 aected by absorption and reflection from structures, objects
and people.
Recommended separation distances between portable and mobile RF
communications equipment and the Medical Infrared Thermometer.
150 kHz to 80 MHz
0.01
0.1
1
10
100
/
/
/
/
/
0.12
0.38
1.2
3.8
12
0.23
0.73
2.3
7.3
23
80 MHz to 800 MHz 800 MHz to 2.5 GHz
Rated
maximum
output
power of
transmitter
W
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