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14.0 Notes on EMC
14.4 Recommended separations between portable and mobile RF Communications
equipment and the ATMOS A / C 161 / 261 Aspirator
Recommended separations between portable and mobile RF Communications
equipment and the ENT-camera ATMOS A / C 161 / 261 Aspirator
The ATMOS A / C 161 / 261 Aspirator is intended for use in electromagnetic environment in which radiated
disturbances are controlled. The customer or user of the ATMOS
C 161 Aspirator can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF Communications equipment
and the ATMOS A / C 161 / 261 Aspirator as recommended below, according to the maximum output power of the
communications equipment.
Separation distance, depending on transmit-frequency m
Nominal output of the
transmitter
W
150 kHz to 80 MHz
d=[0,35]√P
80 MHz to 800 MHz
d=[0,35]√P
800 MHz to 2,5 GHz
d=[0,35]√P
0,01 0,035 0,025 0,07
0,1 0,11 0,11 0,22
1 0,35 0,35 0,7
10 1,1 1,1 2,2
100 3,5 3,5 7,0
For transmitters for which the maximum nominal output isn´t indicated in the above table, the recommended sepa-
ration distance d in meters (m) can be determined using the equation belonging to the respective column whereas
Pisthemaximumnominaloutputofthetransmitterinwatts(W)acc.tomanufacturer´sspecication.
NOTE 1 With 80 MHz and 800 MHz the higher frequency range applies.
NOTE 2 These guidelines don´t like to be applicable in any case. The propagation of electromagnetic sizes is
inuencedbyabsorptionsandreectionsofbuildings,objectsandpeople.