metres (m).
Field strengths from fixed RF transmitters, as determined by an electromagnetic site
survey,
a
should be less than the compliance level in each frequency
range.
b
Interference may occur in the vicinity of equipment marked with the
following symbol:
NOTE1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures,
objects and people.
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 should be considered. If the measured field strength in the location in which the FT-2020 is used exceeds
the applicable RF compliance level above, the FT-2020 should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the FT-2020.
Recommended separation distances between
portable and mobile RF communications equipment and the FT-2020
The FT-2020 is intended for use in an electromagnetic environment (for home healthcare) in which radiated RF disturbances are controlled. The
customer or the user of the FT-2020 can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the FT-2020 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
d =
1,2
80 MHz to 800 MHz
d =
1,2
800 MHz to 2,7 GHz
d =
2,3
0,01
N/A
0,12
0,23
0,1
N/A
0,38
0,73
1
N/A
1,2
2,3
10
N/A
3,8
7,3
100
N/A
12
23
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 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.
Manufacturer’s declaration-electromagnetic immunity
Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless communications equipment
The FT-2020 is intended for use in the electromagnetic environment (for home healthcare) specified below. The customer or the user of the FT-2020
should assure that it is used in such an environment.
Test
frequency
(MHz)
Band
a)
(MHz)
Service
a)
Modulation
b)
Maximum power
(W)
Distance
(m)
IMMUNITY TEST
LEVEL
(V/m)
Compliance
LEVEL
(V/m)
(for home
healthcare)
385
380–390
TETRA 400
Pulse
modulation b)
18 Hz
1,8
0,3
27
27
450
430–470
GMRS 460,
FRS 460
FM c)
±5 kHz deviation
1 kHz sine
2
0,3
28
28
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TIP TEMPerature Products – 340 W Broad Street, Burlington, NJ 08016 – 1-800-TIP-TEMP – [email protected]
