Alma Opus - Recommended Separation Distances

A-4 Opus Operator's Manual
A.3. Recommended Separation Distances
The system is intended for use in an electromagnetic environment in which radiated
disturbances are controlled. The customer or the user of the system can help prevent
electromagnetic interference by maintaining a minimum distance between portable
and mobile RF communication equipment (transmitters) and the system as
recommended in Table A-3, according to the maximum output power of the
communication equipment.
Table A-3. Recommended Separation Distances
Rated Maximum
Output Power of
transmitter
W
Separation Distance According to Frequency of Transmitter
m
150 KHz to 80 MHz
d = 1,2
P
80 MHz to 800 MHz
d = 1,2
P
80 MHz to 2.5 GHz
d = 2,3
P
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 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.