60 78 104 D 3488
36
D 3488.201.01.07.02
11.2009
10 Electromagnetic compatibility
Operating Instructions SIROEndo
10.3
Working clearances
Recommended working clearances
between portable and mobile
HF communication devices and the
UNIT
The
UNIT
is intended for operation in an electromagnetic environment
where radiated HF interference is checked. The customer or the user of the
UNIT
can help prevent electromagnetic interference by duly observing the
minimum distances between portable and/or mobile HF communication
devices (transmitters) and the
UNIT
. These values may vary according to
the output power of the relevant communication device as specified below.
For transmitters whose maximum nominal output is not specified in the
above table, the recommended working clearance d in meters (m) can be
determined using the equation in the corresponding column, where P is the
maximum nominal output of the transmitter in watts (W) specified by the
transmitter manufacturer.
Remark 1
The higher frequency range applies at 80 MHz and 800 MHz.
Remark 2
These guidelines may not be applicable in all cases. The propagation of
electromagnetic waves is influenced by their absorption and reflection by
buildings, objects and persons.
Nominal transmitter output
[W]
Working clearance according to transmission frequency [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
d = [1.2] P
d = [1.2] P
d = [2.3] P
