Radi PressureWire Aeris Manual page 13

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IEC 61000-4-6
Radiated RF
IEC 61000-4-3
NOTE 1: At 80 MHz and 800MHz, 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
the PressureWire® system is used exceeds the applicable RF compliance level above,
the PressureWire® system should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting
or relocating the PressureWire® system.
b) Over the frequency range 150KHz to 80MHz, field strengths should be less than 3 V/m.
1) No mains power input
Recommended separation distances between portable and mobile RF
communications equipment and the PressureWire® system
The PressureWire® system is intended for use in the electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the PressureWire® system can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the PressureWire® system as recommended below,
according to the maximum output power of the communications equipment.
Rated maximum
output power
of transmitter
W
0,01
0,1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended separation
distance (d) in metres (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.
150 kHz to 80 MHz
1)
3 V/m
3 V/m
80 MHz to 2,5 GHz
Separation distance to frequency of transmitter (m)
150 kHz to 80 MHz
d = 1,2√ P
0,12
0,38
1,2
3,8
12
d = 1,2√ P 80 MHz to 800 MHz
d = 2,3√P 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
a
site survey
, should be less
than the compliance level in each
frequency range
Interference may occur in the vicinity
of equipment marked with the
following symbol:
80 MHz to 800 MHz
d = 1,2√ P
0,12
0,38
1,2
3,8
12
b
.
800 Mhz to 2,5 GHz
d = 2,3√ P
0,24
0,73
2,3
7,3
23
13(17)

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