Atmos Scope Operating Instructions Manual page 31

11.0 Notes on EMC
NOTE 1
With 80 MHz and 800 MHz the higher frequency range applies.
NOTE 2
These guidelines may not be applicable in all cases. The emanation of electromagnetic waves is affected by absorption and
reflection of buildings, objects and people.
a
The field strength of stationary transmitters, such as base stations of cellular phones and mobile terrain radio equipment,
amateur radio transmitters, cbm broadcast and TV stations cannot be predestined exactly.
To determine the electromagnetic environment in regard to stationary transmitters, a study of the location is to be considered.
If the measured field strength at the location where the ATMOS
ATMOS Scope is to be observed to verify the intended use. If abnormal performance characteristics are noted, additional
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measures might be necessary, e. g. a changed arrangement or another location for the ATMOS
b
Within the frequency range of 150 kHz to 80 MHz the field strength should be below 3 V/m.
11.4 Recommended safety distance between portable and mobile RF Communications
equipment and the ATMOS
The ATMOS Scope is intended for use in electromagnetic environment in which radiated disturbances are controlled. The
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customer or user of the ATMOS
between portable and mobile RF Communications equipment and the ATMOS
maximum output power of the communications equipment.
Nominal output of the
transmitter
W
0.01
0.1
1
10
100
For transmitters for which the maximum nominal output is not indicated in the above table, the recommended
safety distance d in meters (m) can be determined using the equation belonging to the respective column whereas
P is the maximum nominal output of the transmitter in watts (W) acc. to manufacturer's specification.
NOTE 1
With 80 MHz and 800 MHz the higher frequency range applies.
NOTE 2
These guidelines may not be applicable in all cases. The emanation of electromagnetic waves is affected by
absorption and reflection of buildings, objects and people.
Scope
®
Scope can help prevent electromagnetic interference by maintaining a minimum distance
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Safety distance, depending on transmit-frequency m
150 kHz to 80 MHz
d = [ 3.5 / 3] √P
0.12
0.37
1.16
3.69
11.66
Scope is used exceeds the above compliance level, the
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Scope as recommended below, according to the
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80 MHz to 800 MHz
d = [ 3.5 / 3] √P
0.12
0.37
1.16
3.69
11.66
Scope.
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800 MHz to 2.5 GHz
d = [ 7.0 / 3] √P
0.233
0.74
2.33
7.38
23.33
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