HemoCue WBC DIFF, Operating Manual, Page: 77 / 84

77
Recommended separation distance between Portable and
mobile RF communications equipment and HemoCue WBC
DIFF Analyzer
The HemoCue systems are intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled.
The customer or the user of HemoCue systems can help prevent
electromagnetic interference by maintaining a minimum distance
between portable and RF communications equipment (transmit-
ters) and HemoCue systems as recommended below, according to
the maximum output power of the communications equipment.
Rated maxi-
mum output
power of
transmitter
(W) Separation distance according to fre-
quency of transmitter (m)
150 kHz
to 80 MHz
d=1.2
√
P
80 MHz to
800 MHz
d=1.2
√
P
800 MHz to
2.5 GHz
d=2.3
√
P
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at maximum output power not listed above,
the recommended separation distances (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 transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for
the higher frequencyrange applies.
NOTE 2 These guidelines may not apply in all situations. Elec-
tromagnetic propagation is affected by absorption and reflection
from structures, objects and people.