User's Manual
10
Table 3. Recommended separation distances between portable and mobile RF communications equipment and the
CareLink USB
This section provides information on the recommended separation distance between portable and mobile RF communications
equipment and the CareLink USB. The CareLink USB is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the CareLink USB users can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the CareLink
USB as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
(W)
Separation distance according to the frequency of transmitter (m)
80 MHz to 800 MHz
d = 1.2 √P
800 MHz to 6 GHz
d = 2.3 √P
0.01 0.12 0.23
0.1 0.38 0.74
1 1.2 2.3
10 3.8 7.4
100 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 aected by absorption, and
reection from structures, objects and people.
Icon Table
Symbol Meaning Symbol Meaning
Caution: Consult accompanying documents Manufacturer
Consult instructions for use Date of manufacture