Verity Medical NeuroTrac MultiTENS Operator's Manual page 31

Table 206:
Recommended separation distances between portable and mobile
RF communications equipment and NeuroTrac® product
The NeuroTrac® product is intended for use in an electromagnetic environment
in which radiated RF disturbances are controlled. The customer or the user of
the NeuroTrac® product can help prevent electromagnetic interference by main-
taining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the NeuroTrac® product as recommended below,
according to the maximum output power of the communications equipment.
Rated maximum
output power of
transmitter
W
0,01
0,1
1
10
100
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.
Separation distance according to frequency of transmitter
150 kHz to 80 MHz
d =1.2 √P
0.12
0.38
1.2
3.8
12
NeuroTrac MultiTENS Operation Manual
®
80 MHz to 800 MHz
d =√1.2 P
0.12
0.38
1.2
3.8
12
31
800 MHz to 2,5 GHz
d = √2.3 P
0.23
0.73
2.3
7.3
23