= = = starman
= = = wrote in message ...
RHF wrote:

starman wrote in message ...

What you have is a sloping inverted-L antenna. A real longwire is much
longer than 80-ft for most of the HF spectrum.

TailGator & StarMan,

FWIW: More 'properly' called a "Random" Wire Antenna
- - - Vice a [Longwire] Antenna

Are all inverted-L's, random wires?

StarMan,

In a word "NO" !

If, by 'design' for a specific band of frequencies an Inverted "L"
Antenna has the Horizontal Top Section equal to One Wavelength and a
Vertical End Section equal to One Half Wavelength; then it would be
considered a Longwire Antenna for that Band.

EXAMPLE: 25 Meter SW Band (11.6 - 12.1 MHz) Inverted "L" Antenna
- - - Horizontal Top Section = 85 Ft (One Wavelength)
- - - Vertical End Section = 42 Ft (Half Wavelength)
* * * NOTE: This same Inverted "L" Antenna would be useable on the 49
Meter SW Band (5.95 - 6.2 MHz)
- - - Horizontal Top Section = 85 Ft (Half Wavelength)
- - - Vertical End Section = 42 Ft (Quarter Wavelength)

FWIW: Most people think of the term "Longwire Antenna" as they apply
to the low frequencies especially the AM/MW/BCB where a One Wavelength
Antenna would be Bottom 540kHz = 1860Ft; Middle 1120kHz = 900Ft; Top
1700kHz = 590Ft. But, a Longwire Antenna is a Longwire Antenna when
its length is equal to One Wavelength (or more) at a given frequency.
It then follows that the same "Longwire Antenna" would be Two
Wavelengths, a Half Wavelength, and a Quarter Wavelength at other
frequencies. However, at all other frequencies this "Longwire
Antenna" is simply a 'random' wire antenna.


iane ~ RHF




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