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Recommended separation distances between portable and mobile RF
communication the equipment
The Fingertip Oximeter is intended for use in an electromagnetic environment
in which radiated RF disturbances are controlled. The customer or the user
of The Fingertip Oximeter can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communi-
cations equipment (transmitters) and the Fingertip Oximeter as recommend-
ed below, according to the maximum output power of the communications
equipment.
Rated
maximum
output
power of
transmitter
W (Watts)
Separation distance according to frequency of transmitter
M (Meters
150KHz to 80MHz 80MHz to 800MHz 800MHz to 2.5GHz
0,01 N/A 0.12 0.23
0,1 N/A 0.38 0.73
1 N/A 1.2 2.3
10 N/A 3.8 7.3
100 N/A 12 23
For transmitters rated at a maximum output power not listed above, the
recommended separation distanced 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 80MHz and 800MHz, the separation distance for the higher fre-
quency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reection from structures, objects
and people.
d= 1.2 √P
d= 1.2 √P d= 2.3 √P
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