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Tuning HF Coaxial Antenna Traps
The problem with making your own trapped HF antennas is usually getting the coaxial traps tuned to frequency
post 08 Feb 2024
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Build a 12/17 Meter Trap Dipole
Why a 12/17 meter rotatable dipole? Well, many folks have verticals for the lower bands, and multiband dipoles or beams for 20, 15, and 10 meters. But often you don't have an antenna for the 17and 12 meter bands
Trap Dipole for 17, 12 and 6 Metre Amateur Bands
His garden is only 50ft 15,24m long x 28ft 8,53m wide. This Aerial is still used for the 160, 80, 40 bands. In January 2015, John constructed another Trap resonated on 5,373MHz and inserted it between the 3,7MHz and 7,15MHz Traps to allow operation on the 60 Metre Band
Portable Dipole 40 30 17 m band
Wire dipole antenna that works on 40 30 and 17 meters band
Coax Trap dipole for 12m-17m-30m-40m-80m
diy antenna using 2.5mmq electric cable, a 1:1 balun
Wire trap for 12m WARC band
Le trappole per cavi sono economiche, facili da assemblare in modo riproducibile, ma possono essere fragili meccanicamente facilmente deformabili per operazioni permanenti, su dipoli, V invertiti ecc.
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Why a 12/17 meter rotatable dipole? Well, many folks have verticals for the lower bands, and multiband dipoles or beams for 20, 15, and 10 meters. But often you don't have an antenna for the 17and 12 meter bands
His garden is only 50ft 15,24m long x 28ft 8,53m wide. This Aerial is still used for the 160, 80, 40 bands. In January 2015, John constructed another Trap resonated on 5,373MHz and inserted it between the 3,7MHz and 7,15MHz Traps to allow operation on the 60 Metre Band
Wire dipole antenna that works on 40 30 and 17 meters band
diy antenna using 2.5mmq electric cable, a 1:1 balun
Le trappole per cavi sono economiche, facili da assemblare in modo riproducibile, ma possono essere fragili meccanicamente facilmente deformabili per operazioni permanenti, su dipoli, V invertiti ecc.
Noise suppression with X-phase II This device similar devices are known as QRM eliminators or noise killers, makes it possible
The K9AY loop antenna for 160 and 80m bands You don't have the space to put up a 4 beverage antenna's, an ewe or a 4-square and want 'good ears' on 160 and 80m? no problems try a k9ay loop antenna
Spiderbeam 10-15-20m E' una Yagi tribanda full-size leggera, fatta di tubi in vetroresina e filo