Otto Bock 743A250 Bionic Pro Instructions For Use Manual page 51

NOTE 2: These directives may not be applicable in all cases. The propagation of electromagnetic factors is influ­
enced by absorption and reflection by buildings, objects and people.
a
The field strength of stationary transmitters such as base stations of mobile phones and mobile land radio equip­
ment, amateur radio stations, AM and FM radio and television stations cannot be precisely determined theoretic­
ally in advance. To determine the electromagnetic environment with regard to stationary transmitters, a study of
electromagnetic phenomena at the site should be considered. If the measured field strength at the location where
the 743A250 Bionic Pro product is used exceeds the above compliance level, the 743A250 Bionic Pro product
should be monitored to confirm it is functioning as intended. If unusual performance characteristics are observed,
additional measures may be required such as repositioning the 743A250 Bionic Pro product or moving it to a dif­
ferent location.
b
Within the frequency range of 150 kHz to 80 MHz, the field strength should be less than 3 V
Recommended safety distances between portable and mobile HF telecommunication equipment and the
743A250 Bionic Pro product
The 743A250 Bionic Pro product is designed for operation in an electromagnetic environment where HF interfer­
ence is controlled. The customer or user of the product can help prevent electromagnetic interference by main­
taining the minimum distance – which depends on the output of the telecommunication device as specified below
– between portable and mobile HF telecommunication equipment (transmitters) and the product.
Nominal output of trans­
mitter
M
0.01
0.1
1
10
100
For transmitters with no maximum nominal output specified in the table above, the recommended safety distance
d in metres (m) can be determined using the equation in the respective column, where P stands for the maximum
nominal output of the transmitter in watts (W) according to the transmitter manufacturer's information.
NOTE 1: The higher frequency range applies at 80 MHz and 800 MHz.
NOTE 2: These directives may not be applicable in all cases. The propagation of electromagnetic factors is influ­
enced by absorption and reflection by buildings, objects and people.
Test fre­ Frequency
quency band
(MHz) (MHz)
385 380–390
450 430–470
710 704–787
745
780
810 800–960
870
930
1,720 1,700–1,990
1,845
743A250 Bionic Pro
Safety distance depending on the transmission frequency
150 kHz to 80 MHz
d = 1.2√P
0.12
0.38
1.2
3.8
12
Test frequencies with which the product has been tested
Mobile com­
munications
standard
TETRA 400
GMRS 460,
FRS 460
1 kHz sine
LTE band 13,
17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE band 5
GSM 1800;
CDMA 1900;
M
80 MHz to 800 MHz
d = 1.2√P
0.12
0.38
1.2
3.8
12
Modulation Maximum
output
(W)
Pulse modula­ 1.8
tion
18 Hz
FM 2
± 5 kHz
Deviation
Pulse modula­ 0.2
tion
217 Hz
Pulse modula­ 2
tion
18 Hz
Pulse modula­ 2
tion
Technical data
.
eff
800 MHz to 2.5 GHz
d = 2.4√P
0.23
0.76
2.3
7.3
23
Distance Interference
(m) immunity lim­
it values
(V/m)
0.3 27
0.3 28
0.3 9
0.3 28
0.3 28
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