Welch Allyn Connex Integrated Wall System - User Manual - Manual (Page 128)

Recommended separation distances between portable and mobile RF
communications equipment and the monitor
The monitor is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or user of the monitor can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters)
and the monitor as recommended below, according to the maximum output power of the communications
equipment.
Separation distance according to frequency of transmitter (m)
Rated max.
output power
of transmitter
(W)
150 kHz to 80
MHz
d= (1.17)
80 MHz to 800
MHz
d= (1.17)
800 MHz to 2.5 GHz
d= (2.23)
0.01 0.11667 0.11667 0.23333
0.1 0.36894 0.36894 0.73785
1 1.1667 1.1667 2.3333
10 3.6894 3.6894 7.3785
100 11.667 11.667 23.3333
For transmitters rated at a maximum output power not listed above, the recommended separation distanced
in meters (m) can be estimated using the equation applicable to the frequency of the transmitter, whereP 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.
122 Guidance and manufacturer's declaration Welch Allyn Connex ® Integrated Wall System