User Manual
FireID
TM-501-EN
19
Radiated RF
IEC 61000-4-3
3 V/m
80.0 MHz to 2.5 GHz
3 V/m
80.0 MHz to 2.5 GHz
Recommended separation
distance
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,
(a) Should be less than the
compliance
level
in
each
frequency range (b).
Interference may occur in the
vicinity of
equipment marked with the
following symbol:
Note 1) U
т is the A.C. main voltage prior to application of the test level.
Note 2)
At 80 MHz and 800 MHz, the higher frequency range applies.
Note 3)
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
EUT is used exceeds the applicable RF compliance level above, the EUT should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting
or relocating the EUT.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V1] V / m.
Recommended Separation Distances Between Portable and Mobile RF Communications
Equipment and the
system.