Manufacturer's EMC Declaration
17
Page 37
a
The field strengths from fixed transmitters, such as base stations for radio telephones and land mobile radios,
amateur radio stations, AM and FM radio and TV broadcasters cannot be theoretically predicted with accuracy. In order to
assess the electromagnetic environment with regard to fixed RF transmitters, a study of the electromagnetic phenomena at
the location should be considered. If the measured field strength in the location in which the en
Puls
Version 2.0 device is
used exceeds the above compliance level, the en
Puls
Version 2.0 device must be monitored to verify normal operation. If
abnormal performance is observed, additional measures may be necessary, such as the realignment or relocation of the
en
Puls
Version 2.0.
b
Within the frequency range from 150 kHz to 80 MHz, field strengths should be lower than 3 V/m.
Recommended separation distances between portable and mobile RF communications equipment and the en
Puls
Version 2.0
device
The en
Puls
Version 2.0 device is intended for use in an electromagnetic environment in which RF disturbances are
controlled. The customer or the user of the en
Puls
Version 2.0 device can thus help to prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the
en
Puls
Version 2.0 device – depending on the output power of the communications equipment as indicated below.
Rated power of the transmitter
W
Separation distance depending on the frequency of transmitter
M
150 KHz to 80 MHz
d
= 1.2 √P
80 MHz to 800 MHz
d = 0.35 √P
800 MHz to 2.5 GHz
d = 0.7 √P
0.01
0.12
0.035
0.07
0.1
0.38
0.11
0.22
1
1.2
0.35
0.70
10
3.8
1.1
2.2
100
12
3.5
7
For transmitters whose maximum rated power is not specified in the above table, the recommended separation distance d in metres (m)
can be calculated using the equation that belongs in the respective column, where P is the maximum rated power of the transmitter in
watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 Hz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all cases. The electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.