Dexcom G5 User Manual page 313

Recommended Separation Distances Between Portable and Mobile
RF Communications Equipment and the 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 in the next table,
according to the maximum output power of the communications equipment.
Portable and mobile RF equipment include: baby monitors,
headsets, wireless routers, microwave ovens, laptops with internal Wi-Fi
adapters, GSM cell phones, RFID scanners and hand-held security metal
detector often used by security screeners.
Minimum Recommended Distance Between Other RF Transmitters and the
Dexcom Transmitter/Receiver
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 feet 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 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.
Dexcom G5 Mobile System User Guide
Technical Information
Separation Distance According to Frequency of Transmitter (m)
150 kHz to 80 MHz
½
d = 1.2 P
0.12
0.38
1.2
3.8
12
80 MHz to 800 MHz
½
d = 1.2 P
0.12
0.38
1.2
3.8
12
Bluetooth
wireless
800 MHz to 2.5 GHz
½
d = 2.3 P
0.23
0.73
2.3
7.3
23
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