GE ApexPro TT, Technical Manual

Page: 188 / 192

B-10 ApexPro™ 2001989-351A
Electromagnetic compatibility
Recommended separation distances
The following table provides the recommended separation distances (in meters)
between portable and mobile RF communications equipment and the ApexPro
receiver.
The ApexPro receiver is intended for use in the electromagnetic environment on
which radiated RF disturbances are controlled. The customer or the user of the
ApexPro receiver can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications equipment
(transmitters) and the ApexPro receiver as recommended below, according to the
maximum output power of the communications equipment.
For transmitters rated at a maximum output power not listed above, the recommended
separation distance [
d ] in meters (m) can be estimated using the equitation 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
These guidelines may not apply in all instances. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
Separation distance in meters (m) according to frequency of transmitter
Rated maximum output
power of transmitter in watts
150 kHz to 80 MHz
a
d = 1.2
80 MHz to 800 MHz
a
d = 1.2
800 MHz to 2.5 GHz
a
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
a
At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.