Dexcom SEVEN PLUS User Manual page 130

10
Recommended Separation Distances Between Portable and Mobile RF.
Communications Equipment and Receiver
The Receiver is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Receiver can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Receiver as recommended below, according to
the maximum output power of the communications equipment.
Rated Separation Distance
maximum According to Frequency of Transmitter (m)
Output Power of
150 kHz to 80 MHz
Transmitter (W)
d = 1.2 P
0.01 0.12
0.1 0.38
1 1.2
10 3.8
100 12
For transmitters rated at a maximum output power not listed above, the recommended separation
distance in meters (m) can be estimated 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
manufacture.
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.
130 | SEVEN PLUS Continuous Glucose Monitoring System
80 MHz to 800 MHz
d = 1.2 P
1/2 1/2
0.12
0.38
1.2
3.8
12
800 MHz to 2.5 GHz
d = 2.3 P
1/2
0.23
0.73
2.3
7.3
23