Operator`s manual

WRO 300 H
P/N 3027436 Rev. C
Technical Data
37
Recommended separation distances between portable and mobile
RF communications equipment and the WRO 300 H
The WRO 300 H is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the WRO 300 H can help pre-
vent electromagnetic interference by maintaining a minimum distance between portable
and mobile RF communications equipment (transmitters) and the WRO 300 H as recom-
mended below, according to the maximum output power of the communications equipment.
Rated
maximum
output
power of
transmitter
W
Separation distance according to frequency of
transmitter (m)
150 kHz to
80 MHz
80 MHz to
800 MHz
6
800 MHz to
3 GHz
0,01 0.11 0.11 0.23
0,1 0.37 0.37 0.74
1 1.2 1.2 2.3
10 3.7 3.7 7.4
100 12 12 23
Rated maxi-
mum output
power of mobile
phone
--
2W GSM/3G - - 0.33
For transmitters rated at a maximum output power not listed above, the recommended sep-
aration distance d in meters (m) can be estimated using the equation applicable to the fre-
quency of the transmitter, where P is the maximum output power rating of the transmitter in
watts (W) according to the transmitter manufacturer.
1. NOTE: UT is the AC mains voltage prior to application of the test level.
2. NOTE: These guidelines may not apply in all situations. Electromagnetic propa-
gation is affected by absorption and reflection from structures, objects and peo-
ple.
3. NOTE: At 80 MHz and 800 MHz, the higher frequency range applies.
4. 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 elec-
tromagnetic site survey should be considered. If the measured field strength in
the location in which the WRO 300 H is used exceeds the applicable RF compli-
ance level above, the WRO 300 H should be observed to verify normal opera-
tion. If abnormal performance is observed, additional measures may be
necessary, such as reorienting or relocating the WRO 300 H.
5. Over the frequency range 150 kHz to 80 MHz, field strengths should be less
than 3 V/m.
6. NOTE: At 80 MHz and 800 MHz, the separation distance for the higher fre-
quency range applies.
Value
d
3.5
3
-------
P=
d
3.5
3
-------
P=
d
7
3
---
P=
d
7
30
------
P=