Homecare Multi-parameter Recorder
- 33 -
250 East Gish Road, San Jose
CA, 95112 USA
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
recorder is used exceeds the applicable RF compliance level above, the recorder should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the monitor
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM –
for EQUIPMENT or SYSTEM that are not LIFE-SUPPORTING
Recommended separation distances between
portable and mobile RF communications equipment and the recorder
The recorder is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the recorder can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters)
and the recorder as recommended 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
P
V
d
=
1
5
.
3
80 MHz to 800 MHz
P
E
d
=
1
5
.
3
800 MHz to 2.5 GHz
P
E
d
=
1
7
0.01
0.12
0.12
0.23
0.1
0.37
0.37
0.74
1
1.17
1.17
2.33
10
3.69
3.69
7.38
100
11.67
11.67
23.33
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.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for 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.
