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A dipole modified now 5 bands & no tuner
Never has there been a more true, tried and tested design for 40/80m than the w3dzz
post 03 Jun 2024
Coils Traps Antennas Links →
Antenna Matching Coil Adjustment Procedure
This article describes a specific procedure to adjust a shunt matching coil to assure that the input SWR will remain relatively low
Construction de Trappes
In search of a software for the hatches: Coaxial-traps. Why also coaxial hatches? I chose this system, because not having 1.5 mm² copper wires to use, I had however a lot of cable 75 ohm coaxial for CCTV
Low-loss wire traps
Wire traps do exhibit a high Q-factor so are in theory less lossy compared to coax traps, but are NOT SUITED for high power 200w
Calculator Inductance of a single layer Air core Coil by KB5RYO
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This article describes a specific procedure to adjust a shunt matching coil to assure that the input SWR will remain relatively low
In search of a software for the hatches: Coaxial-traps. Why also coaxial hatches? I chose this system, because not having 1.5 mm² copper wires to use, I had however a lot of cable 75 ohm coaxial for CCTV
Wire traps do exhibit a high Q-factor so are in theory less lossy compared to coax traps, but are NOT SUITED for high power 200w
Antenna switch arduino for icom IC-7300 A solution built around an arduino nano and one of the readily available four relay switching boards
Satellite Antenna Rotator Controller and TRACker ARCTRAC is a portable integrated satellite tracking system
Duplexer 2m-70cm- Usare un'antenna bibanda 2/70 con due radio separate V/UHF, usare due antenne separate V/UHF con una singola radio bibanda