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Old September 9th 03, 02:08 PM
JJ
 
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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.