For transmitters rated at a maximum output power not listed above, the recommended separation distance
d in meters (m) can be estimated using the equation applicable to the frequency of the transmitter,
where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter
manufacturer.
NOTE 1: at 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorp
-
tion 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 monitor is used exceeds the applicable RF compliance level above, the monitor should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be necessary, such
as reorienting or relocating the monitor.
b) Over the frequency range 150kHz to 80 MHz, field strengths should be less than 3V/m
Table A – Test specifications for the device’s Signal Input Parts/Signal Output parts to RF wireless
communication equipment.
Test
Frequency
(MHz)
Band a)
(MHz)
Service b)
Modulation
b)
Maximum
Power (W)
Distance
(m)
IMMUNITY TEST LEVEL
(V/m)
358
380 – 390
TETRA 400
Pulse
Modulation
b) 18Hz
1,8
0.3
27
450
430 – 470
GMRS 460,
FRS 460
FM c) 5 kHz
deviation 1
kHz sine
2
0.3
28
710
704 - 787
LTE Band
13, 17
Pulse
Modulation
b) 217Hz
0,2
0.3
9
745
780
810
800 - 960
GSM
800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
Pulse
Modulation
b) 18Hz
2
0.3
28
870
930
1720
1700 - 1990
GSM 1800,
CDMA
1900, GSM
1900, DECT,
LTE Band
1, 3, 4, 25,
UMTS
Pulse
Modulation
b) 217Hz
2
0.3
28
1845
1970
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