ResMed AirMini User Manual page 35

Notes
• Ut is the AC mains voltage prior to application of the test voltage.
• At 80 MHz and 800 MHz, the equation for the higher frequency
range applies.
• These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from building,
objects, and people.
Recommended separation distances between portable and mobile
RF communications equipment and AirMini (self-adjusting positive
pressure ventilation machine)
AirMini (self-adjusting positive pressure ventilation machine) is intended
for use in the electromagnetic environment in which radiated RF
disturbances are controlled. The customer or user of AirMini
(self-adjusting positive pressure ventilation machine) can help prevent
electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment
(transmitters) and AirMini (self-adjusting positive pressure ventilation
machine), 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 metres (m) can be determined
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.
Separation distance according to frequency of transmitter
(m)
150 kHz to 80 MHz
d = 1.2 √P
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
English 33