antenna w8j

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160 Meter Antennas at W8JI
160-meter vertically polarized transmitting antennas center around this 200-foot tower

[ Hits: 3964 | Votes: 1 | Rating: 10 ]

Crossfire Phasing
Phased antennas elements use radiated fields from multiple elements to produce nulls.

[ Hits: 1190 | Votes: 3 | Rating: 9.33 ]

RF in shack with vertical and longwire antennas
Why a vertical antenna or longwire antenna might require a balun

[ Hits: 4801 | Votes: 5 | Rating: 7.6 ]
Baluns on Log Perodic Antennas
Some antenna manufacturers place baluns at the incorrect location in LPDA arrays If we consider ...

[ Hits: 1602 | Votes: 2 | Rating: 8.5 ]

Beverage Antenna Construction - W8JI
Types of beverage wires choose best supports and insulators multiple antennas at one feedpoint all ...

[ Hits: 15521 | Votes: 9 | Rating: 8.45 ]
Comparison of Beverage antenna
A ranking of receiving antennas based on noise being evenly distributed in all directions These ...

[ Hits: 2855 | Votes: 2 | Rating: 6.5 ]
Echelon-Log Beverages - W8JI
About beverage antennas Enhanced F B Beverages Bandwidth of Directivity arrays This article describes two ...

[ Hits: 1861 | Votes: 1 | Rating: 10 ]
Slinky and loaded beverages
How slinky loaded beverage antennas works, includes eznec models

[ Hits: 3237 | Votes: 1 | Rating: 10 ]

W8JI Technical pages - W8JI
Amplifier vacuum tube receiving beverage loop vertical and transmitting antenna system technical information radiation resistance ...

[ Hits: 22140 | Votes: 37 | Rating: 8.3 ]
EH antennas and CFA antenna
Many antennas function because of common mode currents rather than working in spite of them ...

[ Hits: 2018 | Votes: 3 | Rating: 5.67 ]

End-fed vertical j-pole and horizontal zepp vertical
There are many incorrect ideas and claims surrounding end fed vertical antennas like the I ...

[ Hits: 8785 | Votes: 4 | Rating: 6.75 ]

Loading inductors in mobile antennas
Mobile antennas loading coil current and loaded antennas efficiency and electrical rules Loading inductors used ...

[ Hits: 4287 | Votes: 5 | Rating: 5 ]

Windom off center fed antenna 80-10 mt
This antenna is not a true Windom but rather an off center fed or OCF ...

[ Hits: 12153 | Votes: 13 | Rating: 5.15 ]

Receiving Antenna Design
Learn basic theory on antennas, and notes on homebrewing efficient shortwave antennas

[ Hits: 3201 | Votes: 2 | Rating: 9 ]

Small antennas and radiation resistance - W8JI Tom Rauch
Small antenna what causes loss and how to increase radiation resistance in small antennas A ...

[ Hits: 884 | Votes: 0 | Rating: 0 ]
Optimizing Inductors
While intended mainly for antenna loading coils this article also applies to other resonant systems ...

[ Hits: 552 | Votes: 1 | Rating: 10 ]
Trap antennas, coaxial trap, coax dipole antenna loss resistance
Testing and comparison of traps and trap antennas

[ Hits: 3166 | Votes: 4 | Rating: 9.5 ]

W8JI Antenna Towers
318 and 200 ft insulated towers

[ Hits: 2257 | Votes: 1 | Rating: 10 ]

Cebik antennas and limited space dipoles
An analysis of the cebik dipole and other small limited space dipoles fed with open ...

[ Hits: 2827 | Votes: 3 | Rating: 9.33 ]

W8JK Home Made antenna
F6DED page of a 2 element beam W8LK antenna with pictures and dimensions in french ...

[ Hits: 4340 | Votes: 12 | Rating: 7.17 ]