AccuRelief ACRL-3000 User Manual page 40

table 6:
portable and mobile rf communications equipment and the device
This TENS device is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The customer or the user of the TENS device can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and as
recommended below, according to the maximum output power of the communications equipment.
Output power of
transmitter in watts
0.01
0.1
1
10
100
40
recommended separation distances between
Separation distance according to frequency of transmitter in meters
150 kHz to 80 MHz
d = 1.2 √
0.12
0.38
1.2
3.8
12
80 MHz to 800 MHz
d = 1.2 √P
0.12
0.38
1.2
3.8
12
800 MHz to 2.5 GHz
d = 2.3 √P
0.23
0.73
2.3
7.3
23