The distance of "one sixth lambda" comes from empirical data taken from a
Hertzian dipole antenna. In his book Introduction to Electromagnetic
Compatibility ISBN 0-471-54927-4, Clayton Paul writes: "The point where the
1/r3 (cubed) and 1/r2 (squared) terms become insignificant compared with th
Hello group.
I substantially agree with the comments of Allen Tudor &
Don Umbdenstock. My own view is :
I believe the 40 dB / decade (of distance) is a approximation
for extrapolating the measurement antenna location being reduced from 10
meter to 3 or possibly 1 meter in an effort to see t
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