7
GA--A 202
Guidelines and manufacturer's declaration - Electromagnetic immunity for products that are not life-supporting
The product is intended for use in the environment specified below. The user should assure that the product is used in such an environment.
Immunity tests IEC 60601 test level Compliance Electromagnetic environment - Guidelines
Conducted HF interference
to IEC 61000-4-6
Radiated HF interference
to IEC 61000-4-3
3V
rms
150kHzto80MHz
3V/m
80MHzto2.5GHz
Yes
Portable and mobile RF communications equipment should
be used no closer to any part of the product, including ca
bles, than the recommended separation distance calculated
from equation applicable to the frequency of the transmitter.
Recommended separation distance:
d=1.2p P
d=1.2p P for 80 MHz to 800 MHz
d=2.3p P for 800 MHz to 2.5 GHz
P = Nominal power output rating of the transmitter in watts
(W)
(according to the transmitter manufacturer)
d = recommended separation distance in meters (m)
Field strengths from fixed RF transmitters, as determined by
an electromagnetic site survey
1
, should be less than the
compliance level in each frequency range
2
.
Interference may occur in the vicinity of devices with the
following symbol:
REMARKS:
At 80 MHz and 800 MHz the higher frequency range applies. These guidelines may not apply in all situations. The propagation of elec
tromagnetic waves is affected by absorption and reflexion from buildings, objects and people.
1 = The field strength of stationary transmitters (e.g. base station for radio phone, earth to earth radio stations,, amateur radio stations, radio
and television transmitters) cannot be exactly predicted in theory. To assess the EMC environment due to fixed transmitters an electromagnetic
site survey should be conducted. If the measured field strength in the location in which the product is used exceeds the applicable compliance
level above, the product should be observed to verify normal operation.
If abnormal performance is observed, additional measures may be required, such as reorienting or relocating the product.
2 = Over the frequency range between 150 kHz and 80 MHz the field strength should be below 3 V/m.
Recommended separation distances between portable and mobile HF telecommunication devices and devices which
are not life-supporting
The product is intended for use in an electromagnetic environment where HF disturbances are controlled.
The user can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile HF telecommunica
tions equipment and the product.
Rated nominal output power of the
transmitter (Watts)
Separation distance as a function of transmitter frequency (m)
150kHzto80MHz
d=1.2p P
80MHzto800MHz
d=1.2p P
800 MHz to 2.5 GHz
d=2.3p P
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at a nominal output power not listed in the table above, the recommended separation distance (d) in meters (m) can be
determined using the applicable equation (observe frequency). P = nominal power of the transmitter in Watts (W).
REMARKS:
At 80 MHz and 800 MHz the higher frequency range applies. These guidelines may not apply in all situations. The propagation of elec
tromagnetic waves is affected by absorption and reflexion from buildings, objects and people.
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