Welch Allyn Hillrom H12+, User Manual

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ELECTROMAGNETIC COMPATIBILITY (EMC)
18
Recommended Separation Distances Between Portable and Mobile RF
Communications Equipment and the Equipment
The equipment is intended for use in the electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the equipment can help to prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the equipment as recommended in the table below, according to the
maximum output power of the communications equipment.
Rated Maximum Output Power
of Transmitter W Separation Distance According to Frequency of Transmitter (m)
150 KHz to 800 MHz 800 MHz to 2.5 GHz
P d 2 . 1

P d 3 . 2

0.01 0.1 m 0.2 m
0.1 0.4 m 0.7 m
1 1.2 m 2.3 m
10 4.0 m 7.0 m
100 12.0 m 23.0 m
For transmitters rated at a maximum output power not listed above, the recommended separation
distance
d 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 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 the absorption and reflection from structures, objects, and people.