Sanitas SBM 50 Instructions For Use Manual page 33

a
F ield strengths from fixed transmitters, such as base stations for radio (cellular/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 envi-
ronment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in
which the SBM 50 is used exceeds the applicable RF compliance level above, the SBM 50 should be observed to verify normal operation.
If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the SBM 50.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V /m.
Table 4
For ME EQuIPMENT and ME sYsTEMs that are not lIFE-suPPORTING
Recommended separation distances between portable and mobile RF communications equipment and the SBM 50
The SBM 50 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the
user of the SBM 50 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the SBM 50 as recommended below, according to the maximum output power of the com-
munications 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
determined using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the trans-
mitter 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 T hese 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
0.12
0.38
1.2
3.8
12
(m)
80 MHz to 800 MHz
d = 1.2
0.12
0.38
1.2
3.8
12
77
800 MHz to 2.5 GHz
d = 2.3
0.23
0.73
2.3
7.3
23