Eko CORE Gebrauchsanweisung Seite 27

Recommended Separation Distances Between Portable
and Mobile RF Communications Equipment and the Eko
The Eko Electronic Stethoscope System is intended for use in the electromagnetic
environment in which radiated RF disturbances are controlled. The user of the Eko
Electronic Stethoscope System can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the Eko Electronic Stethoscope System as recommended
below, according to the maximum output power of the communications equipment.
Rated Maximum
Output Power of
Transmitter (W)
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d is meters (m) can be estimated using the equation applicable to the
frequency of the transmitter, where P is the maximum 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.
Electronic Stethoscope System
Separation Distance According to Frequency of Transmitter (m)
150 kHz to 80 MHz
d = 1.2 √P
0.12
0.37
1.2
3.7
12
80 MHz to 800 MHz
d = 1.2 √P
0.12
0.37
1.2
3.7
12
800 MHz to 2.5 GHz
d = 2.3 √P
0.23
0.74
2.3
7.4
23
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