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Technical specifications
Page 39
Recommended separation distances between portable and mobile RF communications equipment
and the TELESMART holter recorder
The TELESMART holter recorder is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the TELESMART holter recorder can
help prevent electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the TELESMART holter recorder as
recommended below, according to the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter / m
Rated maximum
output power of
transmitter in W
0.01
0.1
1
10
100
80 MHz to 800 MHz
d=1.17 * sqrt(P)
0.12
0.37
1.17
3.70
11.70
800 MHz to 2,5 GHz
d=2.33 * sqrt(P)
0.23
0.74
2.33
7.37
23.30
150 KHz to 80 MHz
not applicable
not applicable
not applicable
not applicable
not applicable
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.
TELESMART-H/P - Holter-ECG-Recording System - version D