116
OxyMag_rev26
above, Oxymag should be observed to verify that it is operating normally. If abnormal performance is detected, additional measures may be necessary, such as
reorienting or relocating Oxymag.
d Above the frequency range 0.15 MHz to 80 MHz, the field strength should be less than 3 V / m.
C)
Recommended separation distance between portable and/or mobile RF communications
equipment and the system
Oxymag is intended for use in the electromagnetic environment in which radiated RF disturbances are controlled. The customer or
user of Oxymag can help prevent electromagnetic interference by maintaining a minimum distance between the portable and mobile
RF communications equipment (transmitters) and the Oxymag as recommended below, according to the maximum output power of
the communication equipment.
Table 44: Separation distance according to the transmitter frequency (m)
Maximum output
power of the
transmitter
(W)
150 kHz - 80 MHz
Out of the ISM bands
150 kHz - 80 MHz
Within the ISM
bands
80 MHz - 800 MHz
800 MHz
–
2.5 GHz
d = 1,2√P
d = 1,2√P
d = 1,2√P
d = 2,3√P
0,01
0,12
0,12
0,12
0,23
0,1
0,38
0,38
0,38
0,73
1
1,2
1,2
1,2
2,3
10
3,8
3,8
3,8
7,3
100
12
12
12
23
For transmitters with a stated maximum output power level not listed above, the recommended separation distance d in meters (m) can be determined using the
transmitter frequency equation. Where P is the declared maximum transmitter output power 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 ISM bands (industrial, scientific and medical) between 0.15 MHz and 80 MHz are 6.765 MHz to 6.795 MHz; 13,553 MHz to 13,567 MHz; 26.957 MHz to 27.283
MHz; and 40.66 MHz to 40.70 MHz. Amateur radio bands between 0.15 MHz and 80 MHz are 1.8 MHz to 2.0 MHz, 3.5 MHz to 4.0 MHz, 5.3 MHz to 5 MHz. , 4 MHz, 7
MHz to 7.3 MHz, 10.1 MHz to 10.15 MHz, 14 MHz to 14.2 MHz, 18.07 MHz to 18.17 MHz, 21.0 MHz to 21.4 MHz, 24.89 MHz to 24.99 MHz, 28.0 MHz to 29.7 MHz and
50.0 MHz to 54.0 MHz.
NOTE 3 An additional factor of 10/3 has been incorporated into the formulas used to calculate the recommended separation distance for transmitters in the ISM
frequency bands between 0.15 MHz and 80 MHz and in the 80 MHz to 2.7 GHz frequency range. , with the goal of reducing the possibility of mobile / portable RF
communication equipment causing interference if inadvertently brought into patient areas.
NOTE 4 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.
