CDN THD2FE - Recommended Separation Distances

14
RECOMMENDED SEPARATION DISTANCES
Between Portable and Mobile RF Communications
Equipment and the THD2FE
The THD2FE is intended for use in an electromagnetic environment
(for home healthcare) in which radiated RF disturbances are controlled.
The customer or the user of the THD2FE can help prevent electromagnetic
interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the THD2FE
as recommended below, according to the maximum output power of the
communications equipment.
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
800 MHz to 2,7 GHz
d = 2,3 √P
0,01 N/A 0,12 0,23
0,1 N/A 0,38 0,73
1 N/A 1,2 2,3
10 N/A 3,8 7,3
100 N/A 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 reection from structures, objects and people.