DUKE EASY S.T.01/3AW Rev.0 01/2017
40
Radiated RF
IEC 61000-4-3
3 V/m
from 80 MHz to 2,5 GHz
3 V/m
d = 2,34 √P from 800 MHz to 2,5 GHz
where P is the maximum rated transmitter output
power in Watt (W) according to the transmitter
manufacturer and d is the recommended separation
distance in metres (m).
The fixed RF transmitter field intensity, as
determined by an on-site
a
electromagnetic survey,
should be under the level of conformity for each
frequency interval
b
.
Interferences may occur near devices marked by the
following symbol:
NOTE 1: At 80 MHz and 800 MHz, the separation distance is applied for the highest frequency interval.
NOTE 2: These guidelines may not apply to all situations. Electromagnetic propagation is influenced by building, object and
individual absorption and reflection.
a
Fixed transmitter field intensities, like base stations for radio telephones (mobile and cordless phones) and land line radio
communication devices, radio stations, AM and FM radio transmitters and TV transmitters cannot be theoretically
foreseen with precision. To evaluate an electromagnetic environment caused by fixed RF transmitters, an on-site survey
should be considered. If field intensity measured at the device installation site exceeds the applicable level of conformity
indicated above, device operations should be monitored. If abnormal performance is noted, additional measures such as a
different device orientation or position may be necessary.
b
Field intensity in the frequency interval from 150 kHz to 80 MHz should be under 3V/m.
Recommended separation distance between portable and mobile radio communication devices and the device
The device is intended to work in the electromagnetic environment in which radiated RF disturbances are under control. The
device customer or user can contribute in preventing electromagnetic interferences by ensuring a minimum distance between RF
mobile and portable communication devices (transmitters) and the device and recommended below, according to the maximum
radio communication device output power.
Specific transmitter
maximum output power
W
Separation distance from transmitter frequency
m
from 150 kHz to 80 MHz
d = 1,17 √P
from 80 MHz to 800 MHz
d = 1,17 √P
from 800 MHz to 2,5 GHz
d = 2.34 √P
0,01
0,12
0,12
0,24
0,1
0,37
0,37
0,74
1
1,17
1,17
2,34
10
3,70
3,70
7,40
100
11,70
11,70
23,40
For specified transmitters for a maximum output power not indicated above, the d recommended separation distance in metres
(m) can be calculated using the equation applicable to the transmitter frequency where P is the maximum transmitter rated output
power in Watt (W) according to the transmitter manufacturer
NOTE 1: At 80 MHz and 800 MHz, the separation distance is applied for the highest frequency interval.
NOTE 2: These guidelines may not apply to all situations. Electromagnetic propagation is influenced by building, object and
individual absorption and reflection.
