Dexcom G4 PLATINUM User Manual page 106

NOTE 1: At 80 MHz and 800 MHz, 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.
a. Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast, and TV broadcast cannot
be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF
transmitters, an electromagnetic site survey should be considered. If the measured field strength in the
location in which the Dexcom G4 PLATINUM System is used exceeds the applicable RF compliance level
above, the Dexcom G4 PLATINUM System should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating the
Dexcom G4 PLATINUM System.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Guidance and Manufacturer's Declaration – Electromagnetic Emissions
The Dexcom G4 PLATINUM System is intended for use in the electromagnetic environment specified
below. The customer or the user of the Dexcom G4 PLATINUM System should ensure that it is used in such
an environment.
Electromagnetic Emissions Specifications
Emissions Test
RF emissions
CISPR 11
Compliance
Group 1
106
d = 1.2 √P 80 MHz to 800
MHz
d = 2.3 √P 800 MHz to 2.5
GHz
Where P is the maximum
output power rating of the
transmitter in watts (W)
according to the transmitter
manufacturer and d is the
recommended separation
distance in meters (m).
Field strengths from fixed RF
transmitters, as determined
by an electromagnetic site
survey
the compliance level in each
frequency range
Interference may occur in the
vicinity of equipment marked
with following symbol:
Electromagnetic Environment Guidance
The Dexcom G4 PLATINUM System uses RF
energy only for its internal function. Therefore,
its RF emissions are very low and are not likely
a
should be less than
b
.