ResMed Tango User Manual page 14

Recommended separation distances between portable and mobile RF communications equipment
and the C-Series Tango system
The C-Series Tango system is intended for use in an environment in which radiated RF disturbances are
controlled. The customer or the user of the C-Series Tango system can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters)
and the C-Series Tango system as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum output
power of transmitter W
0.0
0.

0
00
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.
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 (m)
50 kHz to 80 MHz
d = .7 √P
0.7
0.37
.7
3.69
.70
80 MHz to 800 MHz
d = 0.35 √P
0.0
0.
0.35
.
3.50
2
800 MHz to 2.5 GHz
d = 0.7 √P
0.07
0.22
0.7
2.2
7 .0