Madsen zodiac, Reference Manual

Page: 139 / 206

The MADSEN Zodiac is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the
MADSEN Zodiac can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equip-
ment (transmitters) and the MADSEN Zodiacas recommended below, according to the maximum output power of the communications equipment.
Rated maximum output power of
transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
d = 1.2
80 MHz to 800 MHz
d = 1.2
800 MHz to 2.5 GHz
d = 2.3
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated using the equa-
tion 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.
Otometrics - MADSEN Zodiac 139
21 Notes on EMC (Electromagnetic Compatibility)