Multiband trap antenna
The design of the multi-band trap antenna in this article, that should cover the as many as possible of the classical HF radio-amateur bands
post 28 Sep 2020
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Le mie sloper per 80/160 Lunghe solo MT. 17,50
Disarming simplicity and an efficiency that is nothing short of incredible
Jar Capacitance Calculator For Coils
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Build an antenna for 40 and 80
With the help of the K7MEM site I learned that the dipole would be about 12 meter long
High-Q Coil Construction Techniques
n the past I used loading coils to improve the efficiency of a short dipole on 80m. The results, however, were disappointing. The main reason seemed to be the low Q factor of the coils
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 17 and 12 meter bands
88
Disarming simplicity and an efficiency that is nothing short of incredible
This calculator requires the use of Javascript enabled and capable browsers
With the help of the K7MEM site I learned that the dipole would be about 12 meter long
n the past I used loading coils to improve the efficiency of a short dipole on 80m. The results, however, were disappointing. The main reason seemed to be the low Q factor of the coils
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 17 and 12 meter bands