ASTS Enterprises A310 - RF Equipment Separation Distances

14
/
15
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 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 can not 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
A310 Pulse Oximeter is used exceeds the applicable RF compliance level above, the A310 Pulse Oximeter
should be observed to verify normal operation. If abnormal performance is observed, additional measures
may be necessary, such as reorienting or relocating the A310 Pulse Oximeter .
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM -
for EQUIPMENT and SYSTEMS that are not LIFE-SUPPORTING
Recommended separation distances between
portable and mobile RF communications equipment and the A310 Pulse Oximeter
The A310 Pulse Oximeter is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of theA310 Pulse Oximeter can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and theA310 Pulse Oximeter as recommended below, according
to the maximum output power of the communications equipment
Separation distance according to frequency of transmitter
m
Rated maximum
output of
transmitter
W
150 kHz to 80 MHz
P
V
d ]
5.3
[
1

80 MHz to 800 MHz
P
E
d ]
5.3
[
1

800 MHz to 2.7 GHz
P
E
d ]
7
[
1

0.01
/
0.12
0.23
0.1
/
0.38
0.73
1
/
1.2
2.3
10
/
3.8
7.3
100
/
12
23
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.