52
Recommended separation distances between portable
and mobile RF communications equipment and the CardioMessenger
Transmission
frequency
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to 2.5 GHz
Equation
D= 1,17
:
D= 1,17
:
D= 2,34
:
Rated power
of transmitter (W)
Safe distance (m)
Safe distance (m)
Safe distance (m)
0.01
0.12
0.12
0.24
0.1
0.37
0.37
0.74
1
1.17
1.17
2.34
10
3.7
3.7
7.4
100
11.7
11.7
23.4
For transmitters whose maximum nominal output is not indicated in the above table, the distance can be calculated using the equation in the
column, where P is the maximum nominal output of the transmitter in Watts (W) according to the transmitter’s manufacturer.
Note: The higher frequency range applies at 80 MHz and at 800 MHz.
Note: These guidelines may not be applicable in all cases. The propagation of electromagnetic values is affected by absorption and reflection by
structures, objects and people.
p
p
p
CardioMessenger.book Page 52 Monday, March 4, 2013 6:07 PM