B-2
Recommended separation distances between RF wireless
communications equipment
The model ECG recorder is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The customer
or the user of The model ECG recorder can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and The model ECG recorder 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)
150kHz to 80MHz
P
V
d
]
5
.
3
[
1
80MHz to 800MHz
P
E
d
]
5
.
3
[
1
800MHz to 2.7GHz
P
E
d
]
7
[
1
0.01
0.12
0.04
0.07
0.1
0.37
0.12
0.23
1
1.17
0.35
0.70
10
3.70
1.11
2.22
100
11.70
3.50
7.00
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.
