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ECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE
COMMUNICATIONS EQUIPMENT
The AudioStar Pro is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the system can help prevent
electromagnetic interferences by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the system 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 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
in watts (W) according to the transmitter manufacturer.
Note 1 At 80 MHz and 800 MHZ, the higher frequency range applies.
Note 2 These guidelines may not apply to all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects, and people.
D-0131088 Rev C, 2022-07
GSI AudioStar Pro Instructions for Use
Separation distance according to frequency of transmitter
[m]
d = 1.17 √ ����
150 kHz to 80 MHz
0.12
0.37
1.17
3.70
11.70
80 MHz to 800
800 MHz to 2.5
d = 1.17 √ ����
d = 2.23 √ ����
MHz
GHz
0.12
0.23
0.37
0.74
1.17
2.33
3.70
7.37
11.70
23.30
RF
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