95
APPENDIX E
Electromagnetic Compatibility (EMC)
Guidance and manufacturer’s declaration – electromagnetic immunity
The Macroduct Advanced system is intended for use in the electromagnetic environment specified below. The
customer or the operator of the Macroduct Advanced system should assure that it is used in such an environment.
Immunity
Test
IEC 60601 Test Level Compliance Level
Electromagnetic
Environment - Guidance
Modulation
Modulation
Radiated
RF
Immunity
IEC
61000-4-3
800 –
2700
3
1 KHz 80%
Amplitude
Modulation
800 –
2700
3
1 KHz 80%
Amplitude
Modulation
Recommended minimum
separation distance (m)
1.2
√
P (80 – 800 MHz)
2.3
√
P (800 MHz – 2.7
GHz).
Where P is the maximum
output power rating of
the transmitter in watts
(W) according to the
transmitter manufacturer
and is the recommended
separation distance in
meters (m).
Field strengths from fixed
RF transmitters, as
determined by an
electromagnetic site
survey
a
, should be less
than the compliance level
in each frequency range.
b
Interference may occur in
the vicinity of equipment
marked with the
following symbol:
385 27
Modulation
385 27
Modulation
450 28
deviation
450 28
deviation 1
745
9
Modulation
745
9
Modulation
870
28
Modulation
870
28
Modulation
1845
28
Modulation
1845
28
Modulation
2450 28
Modulation
2450 28
Modulation
5240
5500
5785
9
Pulse
Modulation
217 Hz
5240
5500
5785
9
Pulse
Modulation
217 Hz
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
a
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, an electromagnetic site
survey should be considered. If the measured field strength in the location in which the Macroduct Advanced
system is used exceeds the applicable RF compliance level above, the Macroduct Advanced system should be
observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as re-orienting or relocating the Macroduct Advanced system.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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