Beam ECG, Operating Manual

Page: 73 / 76

73
Beam®, Operating Manual, Rev. 4.6.1 01/2016, GmbH
Appendix
8
Recommended safety distances between portable and mobile
HF-Telecommunication Devices and the Loop-/Event Recorder Beam
®
The Loop-/Event Recorder Beam
®
is intended for operation in an electromagnetic
environment, in which the HF interference values are controllable. The customer or user
of the Loop-/Event Recorder Beam
®
can assist avoiding electromagnetic interferences by
keeping the safety distance between portable and mobile HF telecommunication devices
(transmitter) and the Loop-/Event Recorder Beam
®
dependent from the output power of
the communication device as specified below.
Safe Distance dependent on the transmitter frequency in m
Nominal power of
transmitter P in W
0,01
0,1
1
10
100
80 MHz to 800 MHz
d=1,17 * Root(P/W)
0,12
0,37
1,17
3,70
11,70
800 MHz to 2,5 GHz
d=2,33 * Root(P/W)
0,23
0,74
2,33
7,37
23,30
150 KHz to 80 MHz
not applicable
not applicable
not applicable
not applicable
not applicable
For transmitters, whose maximum nominal power is not stated in the above table, the
recommended safety distance d in meters (m) can be calculated using the equation,
which belongs to the respective column, where P is the maximum nominal power of the
transmitter manufacturer.
NOTE 1: At 80 MHz and 800 MHz the higher frequency range applies.
NOTE 2: These guidelines may not apply to all cases. The emission of electromagnetic
values is influenced by absorption and reflection of buildings, objects and people.