MobileCare™ Monitor Operator’s Manual
Copyright 2008 © AFrame Digital, Inc.
38
IMMUNITY
TEST
IEC 60601 TEST
LEVEL
COMPLIANCE
LEVEL
ELECTROMAGNETIC ENVIRONMENT
—GUIDANCE
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
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 device is used exceeds the applicable RF compliance level above, the
device should be observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as reorienting or relocating the device.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [3] V/m.
NOTES:
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects, and people.
Recommended Separation Distances
The following table details the recommended separation distances between portable
and mobile RF communications equipment and this device.
This device is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. Users of
this device can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communication equipment (transmitters) and the device as recommended below, according to maximum output power of the
communications equipment.
Separation Distance According to Frequency of Transmitter
Rated Maximum Output Power of Transmitter
W
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
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended separation distance
d
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 manufacturer.
NOTES:
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects, and people.
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