EMC Compliance
Discovery NM/CT 670 – Standard Integration Instructions
5483063-1EN, Rev.2, ©2015 GE Healthcare C-4
Table C-3: Separation Distances for Portable and Mobile RF Communications Equipment
Rated Max
Transmitter
Output
(Watts)
Separation distance according to frequency of
transmitter (meters)
Comments
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2.5 GHz Where P is the maximum output power rating of
the transmitter in watts (W) according to the
transmitter manufacturer and d is the
recommended separation distance in meters (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey
*
,
should be less than the compliance level in each
frequency range
†
.
Interference may occur in the vicinity of
equipment marked accordingly.
0.01 0.12 0.23
0.1 0.37 0.74
1 1.17 2.33
10 3.69 7.38
100 11.7 23.3
* Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM
and FM radio broadcast, and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to
fixed RF transmitters, and electromagnetic site survey should be considered. If the measured field strength in the location in which the system is
used exceeds the applicable RF compliance level above, the system should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or relocation the system.
† Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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