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A: The fi eld strength intensity of stationary transmitters such as wireless cellular/cordless
phones and land mobile radios, amateur radio, AM or FM radio and television broadcasts
cannot be predicted theoretically with accuracy. To evaluate the electromagnetic environ-
ment, an electromagnetic site survey should be considered. If the measured fi eld strength
in the device's location is higher than the RF compliance level as stated in the above table,
the device should be observed to verify normal operation. If abnormal device performance
is observed, additional measures should be taken to relocate or reorient the device.
B: In the frequency range 150 kHz to 80MHz, the fi eld strength should always be lower than
30 v/m.
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF
COMMUNICATIONS EQUIPMENT AND THIS DEVICE
This device is intended for use in electromagnetic environments in which radiated RF
disturbances are controlled. The user of this device can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF com-
munications equipment (transmitters) and this device as outlined below, according to the
maximum output power of the communications equipment.
RATED MAXIMUM
OUTPUT POWER
OF TRANSMITTER
(WATTS)
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.
NOTE 1: At 80 MHz and 800MHz, the separation distance for the higher frequency range
applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is
aff ected by absorption and refl ection from structures, objects and people.
SEPARATION DISTANCE ACCORDING TO FREQUENCY OF
TRANSMITTER (METERS)
150KHZ-80MHZ
D=1.2
0.12
0.38
1.2
3.8
12
15/199
80MHZ-800MHZ
D=1.2
0.12
0.38
1.2
3.8
12
800MHZ-2.5GHZ
D=2.3
0.23
0.73
2.3
7.3
23
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