Dick Carroll; wrote:
Len Over 21 wrote:
In article , "Dick Carroll;"
writes:
JJ wrote:
Len Over 21 wrote:
Incorrect. The word "dipole" refers to anything with two elements and
a
polarity. [a "monopole" is a single element with no polarity]
A dipole ANTENNA refers to a wire type having two elements of wires,
balanced-fed from the center with RF voltage in opposition.
The length of this dipole antenna may be ANY length, from
near-infinitesimal
(fractional wavelength) to many wavelengths.
The radiation pattern of the dipole antenna will vary based on many
factors:
length relative to wavelength, distance above ground or other
imperfect
conductor being the two most affecting patterns.
Len is correct, dipole simply means two separate elements (di
means two). A dipole of a certain length will be a half
wavelength at xx frequency, a quarter wavelength at yy
frequency and a full wavelength at zz frequency and so on.
OK jj, kindly give us ONE example of a 1/4 wave dipole.....
A 40m half-wave dipole used on 80m... :-)
I rest my case....
Which means it is still a dipole but since it is being used on
80 meters it is now a 1/4 wavelength dipole.
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