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Multiband vertical
10 meters of vertical that makes for a handy 1/4 wave for 40m, 30m, 20m, 17m
post 09 Feb 2024
Coils Traps Antennas Links →
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
Bootstrap coax traps for antenna
The article is an analysis of an antenna trap where a coil is formed of a length of coax cable
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
81
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
The article is an analysis of an antenna trap where a coil is formed of a length of coax cable
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
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