Fetal Doppler
19
Recommended separation distances between portable and mobile RF
communications equipment and the
Fetal Doppler
.
The
Fetal Doppler
is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the
Fetal
Doppler
can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment
(transmitters) and the
Fetal Doppler
as recommended 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 80 MHz
80 MHz to 800
MHz
800 MHz to 2.5 GHz
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
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.
Summary of Contents for AngelSounds JPD-100S9
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