GE Panda iRes Warmer Operation And Maintenance Manual page 83

Recommended separation distance between portable and mobile RF
communications equipment and the Giraffe warmer
The Giraffe warmer is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Giraffe warmer can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communica tions equipment (transmitters) and the Giraffe warmer as recommended below,
according to the maximum output power of the communications equipment.
Rated
maximum
output power
of transmitter
(W )
0.01
0.1
1.0
10.0
100.0
For transmitters rated at a maximum output power not listed above, the recommended separation
distance (d) in meters (m) can be determined 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: At 80 MHz and 800 MHz, the separation distance for the higher frequency range
applies.
NOTE: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
Panda iRes Warmer M1110737 006
Separation distance in meters (m) according to frequency of transmitter
150 kHz to 80 MHZ
d = 1 2 . P
0.12
0.38
1.2
3.8
12.0
© 2007 General Electric Company, all rights reserved
80 MHz to 800 MHz
d = 1 2 . P
0.12
0.38
1.2
3.8
12.0
800 MHz to 2.5 GHz
P
d  2 3 .
0.23
0.73
2.3
7.3
23.0
C-5