User's Manual

E-47
E
Table 5: Recommended Separation Distances Between Portable and Mobile RF
Communications Equipment and the VP47XX and VP47XXF Monitors
The ConMed Linvatec VP47XX and VP47XXF Monitors are intended for use in an
electromagnetic environment in which radiated RF disturbances are controlled. The customer or
the user of the VP47XX and VP47XXF Monitors can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the VP47XX and VP47XXF Monitors as recommended below, according to the
maximum output power of the communications equipment.
Separation Distance According to Frequency of Transmitter
m
Read Maximum
Output Power
of Transmitter
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2.5 GHz
W d = [3.5/V1] √ P
V1 = 3V/m
d = [3.5/E1] √ P
E1 = 3V/m
d = [7/E1] √ P
E1 = 3V/m
0.01 0.12 0.12 0.23
0.1 0.37 0.37 0.74
1 1.17 1.14 2.33
10 3.70 3.70 7.37
100 11.70 11.70 23.3
For transmitters rated at a 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 the transmitter manufacturer.
Note 1: E1) At 80 MHz and 800 MHz, the separation distance for the higher frequency range
applies.
Note 2: E2) These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects, and people.