Walk200b
ELECTROMAGNETIC COMPABILITY (EMC)
10
Radiated RF
IEC 61000-4-3
3 V/m
From 80 MHz to 2.5
GHz
3 V/m
separation distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance:
From 80 MHz to 800 MHz
From 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 metres (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: 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
Walk200b is used exceeds the applicable RF compliance level above, the Walk200b should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be necessary, such
as re-orienting or relocating the Walk200b.
b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.