Tyco Electronics 1928L - Manual (Page 12)

Recommended separation distances between portable
and mobile RF communications equipment and the ET1928L
The ET1928L is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
The customer or the user of the ET1928L can help prevent electromagnetic interference by maintaining a mini-
mum distance between portable and mobile RF communications (equipment) and the ET1928L as recommended
below according to the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter
Rated maximum output 150 kHz to 80 MHz 80MHz to 800 MHz 800 MHz to 2.5 GHz
power of transmitter
W d=1.2 P d=1.2 P d=2.3 P
0.01 0.12 0.12 0.23
0.1 0.37 0.37 0.74
1 1.2 1.2 2.3
10 3.7 3.7 7.4
100 12 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.
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.
Recommended separation distance between portable and mobile
RF communications equipment and the ET1928L
for all EQUIPMENT AND SYSTEMS that are not LIFE-SUPPORTING
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