Electromagnetic Capability Appendix
19 - 44 0070- 0-0704-02 Passport V Operating Instructions
TABLE 19-9
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF
COMMUNICATIONS EQUIPMENT AND THE GAS MODULE 3
The Gas Module 3 is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Gas Module 3 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Gas Module 3 as recommended below,
according to the maximum output power of the communications equipment.
RATED MAXIMUM OUTPUT
POWER (P) OF
TRANSMITTER IN WATTS
(W)
SEPARATION DISTANCE (d) IN METERS (m)
ACCORDING TO FREQUENCY OF TRANSMITTER
150 kHz to
80 MHz
d = 1.2 x
80 MHz to
800 MHz
d = 1.2 x
800 MHz to
2.5 GHz
d = 2.3 x
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 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.
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