Tabla de contenido
Publicidad
Apéndice A. Información técnica
Apéndice A. Información técnica
Recommended separation distances between portable and mobile RF communications
Recommended separation distances between portable and mobile RF communications
equipment and the CRA-1.
equipment and the CRA-1.
The CRA-1 is intended for use in an electromagnetic environment in which radiated RF
The CRA-1 is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the CRA-1 can help prevent
disturbances are controlled. The customer or the user of the CRA-1 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and
electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the CRA-1 as recommended below,
mobile RF communications equipment (transmitters) and the CRA-1 as recommended below,
according to the maximum output power of the communications equipment.
according to the maximum output power of the communications equipment.
Rated maximum
Rated maximum
output power of
output power of
transmitter W
transmitter W
0.01
0.01
0.1
0.1
1
1
10
10
100
100
For transmitters rated at a maximum output power not listed above, the recommended
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in meters (m) can be estimated using the equation applicable to the
separation distance d in meters (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
frequency of the transmitter, where P is the maximum output power rating of the transmitter
in watts (W) according to the transmitter manufacturer.
in watts (W) according to the transmitter manufacturer.
NOTE 1. At 80 MHz and 800 MHz, the separation distance for the higher frequency range
NOTE 1. At 80 MHz and 800 MHz, the separation distance for the higher frequency range
NOTE 2. These guidelines may not apply in all situations. Electromagnetic propagation is
NOTE 2. These guidelines may not apply in all situations. Electromagnetic propagation is
A-14
A-14
Reviewed: Westling Lauri 04.02.10 17:14:52
Approved: Raivonen Veli-Pekka 08.02.10 10:15:37
See the PaloDEx Group Oy PDM system to determine the status of this document. Printed out: 31.03.11 08:56:40
Separation distance according to frequency of transmitter m
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz
150 kHz to 80 MHz
d = 1.2 P
d = 1.2 P
0.12
0.12
0.38
0.38
1.2
1.2
3.8
3.8
12
12
applies.
applies.
affected by absorption and reflection from structures, objects and people.
affected by absorption and reflection from structures, objects and people.
80 MHz to 800 MHz
80 MHz to 800 MHz
800 MHz to 2.5 GHz
800 MHz to 2.5 GHz
d = 1.2 P
d = 1.2 P
d = 2.3 P
d = 2.3 P
0.12
0.12
0.23
0.23
0.38
0.38
0.73
0.73
1.2
1.2
2.3
2.3
3.8
3.8
7.3
7.3
12
12
23
23
X-Mind Novus
X-Mind Novus
X-Mind Novus
X-Mind Novus
D502009
Publicidad
Tabla de contenido
