Table des Matières
Publicité
Manuel Utilisateur de Série de Poche Ultrasonique Doppler SONOTRAX
A1.4 Recommended Separation Distances
Recommended separation distances between portable and mobile RF communications equipment
The SONOTRAX Series Ultrasonic Pocket Doppler is intended for use in an electromagnetic environment
in which radiated RF disturbances are controlled. The customer or the user of the device can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the SONOTRAX Series Ultrasonic Pocket Doppler as
recommended below, according to the maximum output power of the communications equipment.
Rated maximum
output power of
transmitter
(W)
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended separation distances
in metres (m) can be estimated using the equation applicable to the frequency of the transmitter, where P
is the maximum output power rating of the transmitter in watts (W) according 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.
and the SONOTRAX Series Ultrasonic Pocket Doppler
Separation distance according to frequency of transmitter
80 MHz to 800 MHz
3
5 .
=
d
P
E
1
0.1167
0.3689
1.1667
3.6893
11.6667
(m)
800 MHz to 2.5 GHz
- 27 -
7
=
d
P
E
1
0.2334
0.7378
2.3334
7.3786
23.3334
Publicité
Table des Matières
