NDD EasyOne Air Operator's Manual page 105

Appendix
Rated maximum output
power of transmitter
0.01 W
0.1 W
1 W
10 W
100 W
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: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Note: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
Note: An additional factor of 10/3 is used in calculating the recommended separation distance to decrease the
likelihood that mobile/portable communications equipment could cause interference if it is inadvertently brought
into patient areas.
 Recommended separation distances between portable and mobile RF communications equipment and EasyOne Air
Operator's Manual V03 • EasyOne Air • EasyOne Connect
© ndd Medizintechnik AG • Technoparkstrasse 1, 8005 Zurich, Switzerland • www.ndd.ch
Recommended separation distances between portable and mobile RF
communications equipment and EasyOne Air
EasyOne Air is intended for use in the electromagnetic environment in which
radiated RF disturbances are controlled. The user of EasyOne Air can help
prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters)
and EasyOne Air as recommended below, according to the maximum output
power of the communication equipment.
Separation distance according to frequency of transmitter
150 kHz to 80 MHz
d 1.2 P
=
0.12 m
0.38 m
1.2 m
3.8 m
12 m
80 MHz to 800 MHz
d 0.35 P
=
0.035 m
0.11 m
0.35 m
1.1 m
3.5 m
800 MHz to 2.5 GHz
d 0.7 P
=
0.07 m
0.22 m
0.70 m
2.2 m
7.0 m
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