VISIOMED TensioFLASH KD-798 Manuel D'utilisation page 19

NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflec-
tion 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 RF transmitters, an electromagnetic site survey should be considered.
If the measured field strength in the location in which the KD-798 is used exceeds the applicable RF compliance level above,
the KD-798 should be observed to verify normal operation. If abnormal performance is observed, additional measures may
be necessary, such as re-orienting or relocating the KD-798.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
36 Visiomed - KD-798 - Manuel d'utilisation - 0720176
Recommended separation distance:
d = 1.2 √ P
80 MHz to 800 MHz
d = 2.3 √ P
800 MHz to 2,5 GHz
Where P is the maximum output power rating
of the transmitter in watts (W) according to
the transmitter manufacturer and d is the
recommended separation distance in meters
(m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,a
should be less than the compliance level in each
frequency range.b
Interference may occur in the vicinity of
equipment marked with the following symbol:
Table 4
For ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Recommended separation distances between
portable and mobile RF communications equipment and the KD-798
The KD-798 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
customer or the user of the KD-798 can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the KD-798 as recommended below,
according to the maximum output power of the communications equipment.
Rated maxi-
mum output
of transmit-
ter W 150 kHz
to 80 MHz
P √
d = 1.2
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 d in meters (m) can
be determined using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of
the transmitter in watts (W) accor-ding to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
Visiomed - KD-798 - Manuel d'utilisation - 072017
Separation distance according to
frequency of transmitter m
80 MHz 800 MHz
to 800 MHz to 2,5 GHz
P √ P √
d = 1.2 d = 2.3
0.12
0.38
1.2
3.8
12
37
0.23
0.73
2.3
7.3
23