Instructions for use ELECTROmatic TM and TMM/TMC
12 Information about electromagnetic compatibility | 12.4 Recommended safe distances between portable and mo-
bile HF telecommunications equipment and the ELECTROmatic
88 / 90
Note 2: These guidelines may not be applicable in every case. The propagation
of electromagnetic waves is subject to absorption and reflection by buildings,
objects, and people.
12.4 Recommended safe distances between portable
and mobile HF telecommunications equipment and the
ELECTROmatic
The ELECTROmatic is intended for use in an electromagnetic environment in
which the HF interference parameters are controlled. The customer or user of
the ELECTROmatic can help prevent electromagnetic interference by maintain-
ing the minimum clearance between portable and mobile HF telecommunication
devices (transmitters) and the ELECTROmatic depending on the output of the
communication device as indicated below.
The table shows the necessary safe distance as a function of the transmission
frequency in m:
Rated maximum out-
put power of trans-
mitter in W
150 kHz to 80 MHz
d=1.17
80 MHz to 800 MHz
d=0.35
800 MHz to 2.5 GHz
d=0.70
0.01 0.12 0.04 0.07
0.1 0.37 0.11 0.22
1 1.17 0.35 0.70
10 3.70 1.11 2.21
100 11.70 3.5 7.0
For transmitters whose maximum rated power is not included in the above
table, the recommended safe distance d in metres (m) can be calculated using
the equation for the respective column, where P is the maximum rated power
of the transmitter in Watts (W) as specified by the manufacturer.
Note 1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note 2: These guidelines may not be applicable in every case. The spread of
electromagnetic waves is absorbed and reflected by buildings, objects and
people.
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