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
NOTE I At 80 MHz ends 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 device is used exceeds the applicable
RF compliance level above, 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 [Vi] V/m
32
To Next Page
Loading...
Need help?
General
