Fitbit Zip Aria 2 - RF Separation Distance Calculations; Separation Distance Estimation Table

22
V/m.
Recommended separation distances between portable and mobile RF
communication equipment and the Aria 2 Wireless Smart Scale
The Aria 2 Wireless Smart Scale is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The customer or the
user of the Aria 2 Wireless Smart Scale can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Aria 2 Wireless Smart Scale as
recommended below, according to the 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
d = 1.17* √ P
80 MHz to 800
MHz
d = 1.17* √ P
800 MHz to 2.5 GHz
d = 2.33* √ P
0.01
Not applicable
0.12
0.23
0.1
Not applicable
0.37
0.74
1
Not applicable
1.17
2.33
10
Not applicable
3.7
7.37
100
Not applicable
11.7
23.3
For transmitters rated a maximum output power not listed above, the recommended
separation distance d in metres (m) can be estimated using the equation applicable
to the frequency of the transmitter, where P is the maximum output power rating of