Erbe KAUTER N Mode D'emploi page 40

Guidance and manufacturer's declaration - electromagnetic immunity
Note 1: At 80 MHz equation 2) applies At 800 MHz equation 3) applies
Note 2: These guidlines 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 HF transmitters, an electromagnetic site survey should be considered.
If the measured field strength in the location in which the equipment is used exceeds the applicable compliance level above,
the equipment should be observed to verify normal operation. If abnormal performance is observed, additional measures
may be necessary, such as reorienting or relocating the equipment.
b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.Über den Frequenzbereich von
150 kHz bis 80 MHz ist die Feldstärke kleiner als 3 V/m.
Recommended separation distances between portable and mobile HF communications equipment and the
equipment
The equipment is intended for use in an electromagnetic environment in which radiated HF disturbances are controlled. The
customer or the user of the equipment can help prevent electromagnetic interference. This can be achieved by maintaining
the minimum distance recommended below between the communications equipment (transmitters) and the equipment. The
minimum distance depends on the maximum output power and the frequency of the communications equipment.
Rated maximum output Separation distance according to frequency of transmitter (m)
power of transmitter (W)
150 kHz to 80 MHz
d=1.2 P
0.01 0.12
0.1 0.38
1 1.2
10 3.8
100 12
For transmitters rated at a maximum output power not listed above, the recommended separation distance can be determi-
ned using the equation applicable to the frequency of the transmitter. P is the maximum output power rating of the trans-
mitter in watts (W) according to the transmitter manufacturer.
Note 1: An additional factor of 10/3 is used in calculating the recommended separation distance for transmitters in the fre-
quency bands between 80 MHz and 2.5 GHz to decrease the likelihood that mobile/portable communications equipment
could cause interference if it is inadvertently brought into patient areas.
Note 2: These guidlines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflec-
tion from structures, objects and people.
20
80 kHz to 800 MHz
1/2 1/2
d=1.2 P
0.12
0.38
1.2
3.8
12
800 MHz to 2.5 GHz
1/2
d=2.3 P
0.23
0.73
2.3
7.3
23