DeVilbiss DV63 STANDARD PLUS Service Manual page 37

G U I D A N C E & M A N U FA C T U R E R ' S D E C L A R AT I O N
Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and this device. This
device and system are NOT Life-Supporting
This device is intended for use in the electromagnetic environment in which radiated disturbances are controlled. The customer or user of this device can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF Communications Equipment and the device as
recommended below, according to the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter M
Rated maximum
150 kHz to 80 MHz
output power of
outside ISM bands
transmitter W
D=(0.4)√ P
0.01 0.04
0.1 0.11
1 0.35
10 1.1
100 3.5
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 affected by absorption and reflection from structures, objects and people.
80 to 800MHz 800 MHz to 2.5 GHz
D=(0.4)√ P D=(0.7)√ P
0.04 0.07
0.11 0.22
0.35 0.70
1.1 2.2
3.5 7.0
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