User manuel
23
-22
in meters (m).
Field strengths from fixed RF transmitters, as determined
by an electromagnetic site survey,
a
should be less than the
compliance level in each frequency range.
b
Interference may occur in the vicinity of equipment marked
with the following symbol:
80 MHz to 2.6 GHz
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range app lies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellu lar/cordless) telephones and land mobile radios,
amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with
accuracy. To assess the
electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the
measured field strength in the location in which t he TENS and Muscle Stimulator is used exceeds the applicable RF
compliance level above, the TENS and Muscle Stimulator should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating th
e TENS and Muscle
Stimulator.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 6 V/m.
4) Recommended separation distances between portable and mobile RF communications equipment and the TENS and
Muscle Stimulator
The TENS and Muscle Stimulator is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the TENS and Muscle Stimulator can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobi le RF communications equipment (transmi
tters) and the TENS and
Muscle Stimulator as recommended below, according to t he 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
Pd 167.
80 MHz to 800 MHz
Pd 167.=1
800 MHz to 2.5 GHz
Pd 333.=2
0.01 0.117 0.117 0.233
0.1 0.369 0.369 0.738
1 1.167 1.167 2.333
10 3.689 3.689 7.379
100 11.667 11.667 23.333
For transmitters rated at a maximum output p ower 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 t he maximum output power rating of
the transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separat
ion dist
ance 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.
manual
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