Recommended separation distances between portable and mobile RF communications equipment and the HFA3
The HFA3 is intended for use in an electromagnetic environment in which r
adiated RF disturbances are controlled. The customer or the user of
the HFA3 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the HFA3 as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output power of
tr
ansmitter W
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2,5 GHz
d = 1.17
d = 1.17
d = 2.33
0,01 0.117 0.117 0.233
0,1 0.370 0.370 0.737
1 1.170 1.170 2.330
10 3.700 3.700 7.368
100 11.700 11.700 23.300
For transmitters rated at a maximum output
power not listed above, the recommended separation distance d in meters (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.
Note 1: At 80 MHz and 800 MHz, the higher frequency applies.
Note 2: These guidelines may not apply in all situations. Electr
omagnetic propagation is affected by absorption and reflection from structures,
objects and people.
Introduction Go to Contents
HFA3 Instructions for Use 2660021166131 Rev. A 2018-11
1-12
Risks of Internet Connectivity
CAUTION: When connected to the Internet, the HFA3 instrument may be vulnerable to
serious security risks, including viruses and worms that co
uld disable your system or
adversely affect its performance. Internet connectivity enables third party software drivers
and updates to be downloaded to your system, either automatically or intentionally.
Installation of any unapproved software, including drivers, could degrade the performance
of the instrument and/or lead to corrupted diagnostics or therapeutic information and may
void the instrument warranty.
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