ZOE PPM3 - Page 214

24-16 Nightingale PPM3 User's Guide April 2019
Technical Data
Recommended separation distances between portable and mobile RF communications equipment
and the Nightingale PPM3
The Nightingale PPM3 is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The user of the Nightingale PPM3 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the Nightingale PPM3 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
80 MHz to 800
MHz
d = 1.2
800 MHz to 2.5
GHz
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
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 reflection from structures, objects and people.