antenna w8j39 links
Antennas : 160M
- 160 Meter Antennas at W8JI
- 160-meter vertically polarized transmitting antennas center around this 200-foot tower
[ Hits: 3824 | Votes: 1 | Rating: 10 ]
- Crossfire Phasing
- Phased antennas elements use radiated fields from multiple elements to produce nulls.
[ Hits: 1082 | 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: 4622 | 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 what the balun does we can see how the mistake occurs.
[ Hits: 1525 | Votes: 2 | Rating: 8.5 ]
- Beverage Antenna Construction
- Types of beverage wires, choose best supports and insulators, multiple antennas at one feedpoint, all well documented with photos and exaustive explanation.
[ Hits: 14946 | Votes: 8 | Rating: 9.38 ]
- Comparison of Beverage antenna
- A ranking of receiving antennas based on noise being evenly distributed in all directions. These rankings are most accurate in the frequency range of AM broadcast, 160 or 80 meter bands
[ Hits: 2741 | Votes: 2 | Rating: 6.5 ]
- Echelon-Log Beverages
- About beverage antennas, Enhanced F/B Beverages, Bandwidth of Directivity, arrays
[ Hits: 1757 | Votes: 1 | Rating: 10 ]
- Slinky and loaded beverages
- How slinky loaded beverage antennas works, includes eznec models
[ Hits: 3123 | Votes: 1 | Rating: 10 ]
- W8JI Technical pages
- Amplifier, vacuum tube, receiving beverage loop vertical and transmitting antenna system technical information radiation resistance, EH antenna, noise,receivers, and information on keyclicks.
[ Hits: 21696 | 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. Two popular examples are CFA and EH antennas. Another recent example, appearing in Antennex's compact antenna articles, is a thick stub "vertical" with no counterpoise.
[ Hits: 1892 | 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-Max 2000), end fed horizontal antennas, Zepp, and J-pole antennas. This article describes it.
[ Hits: 8451 | 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 in mobile HF antennas.
[ Hits: 4114 | 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 dipole works on 8 bands from 80 to 10 meters
[ Hits: 11124 | Votes: 9 | Rating: 5.44 ]
- Receiving Antenna Design
- Learn basic theory on antennas, and notes on homebrewing efficient shortwave antennas
[ Hits: 3097 | Votes: 2 | Rating: 9 ]
- Small antennas and radiation resistance
- Small antenna, what causes loss and how to increase radiation resistance in small antennas., A description of loss and radiation resistance.
[ Hits: 813 | Votes: 0 | Rating: 0 ]
- Optimizing Inductors
- While intended mainly for antenna loading coils, this article also applies to other resonant systems, such as amplifier tank circuits.
[ Hits: 484 | Votes: 1 | Rating: 10 ]
- Trap antennas, coaxial trap, coax dipole antenna loss resistance
- Testing and comparison of traps and trap antennas
[ Hits: 3054 | Votes: 4 | Rating: 9.5 ]
- W8JI Antenna Towers
- 318 and 200 ft insulated towers
[ Hits: 2143 | 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 wire ladder line.
[ Hits: 2680 | 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: 4005 | Votes: 11 | Rating: 6.91 ]
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