F&P SleepStyle Auto - Recommended Separation Distances for RF Equipment

F&P SleepStyle Product Technical Guide | 13
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF
COMMUNICATIONS EQUIPMENT AND THE F&P SLEEPSTYLE SERIES
The F&P SleepStyle Series is intended for use in the electromagnetic environment in which radiated RF disturbances are controlled. The
customer or the user of the F&P SleepStyle Series can help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the F&P SleepStyle Series as recommended below, according to the
maximum output power of the communications equipment.
Separation distance according to frequency of transmitter (m)
Rated maximum output power of
transmitter
W
150 kHz to 80 MHz
d = 0.58 √P
80 MHz to 800MHz
d = 0.35 √P
800MHz to 2.7 GHz
d = 0.70 √P
0.01 0.058 0.035 0.070
0.1 0.18 0.11 0.22
1 0.58 0.35 0.70
10 1.8 1.1 2.2
100 5.8 3.5 7.0
For transmitters rated at 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 aected by absorption and reflection from structures,
objects and people.