base loading7 links
- 160m inverted L by W6SDO
- A 160 meter antenna with a base loading coil used to tune the two lower frequency segments of the band.
[ Hits: 1816 | Votes: 3 | Rating: 7.33 ]
- Homebrew 20/40m Travel Antenna
- This is a low cost homebrew two band travel antenna for 20 and 40 meters. It is based on the B&W Travel Antenna concept with a telescoping whip and a loading coil
[ Hits: 17447 | Votes: 15 | Rating: 5.86 ]
- A very efficient half size 40 meter Vertical Antenna
- A vertical antenna project for the 7MHz made with some spare parts. Based on a broken 20 foot fishing pole, it is based on a good ground system made with radials and a capacitive hat done to increase the global radiation resistance of the antenna. A custom loading coil is also included in this project to perfectly tune the antenna to the CW portion of the 40 meters band.
[ Hits: 725 | Votes: 4 | Rating: 8.5 ]
- Loading of Short Antennas
- An interesting article on loading short vertical monopole antennas, representing six different methods. Base loading, Center Loading, Top Loading, Continuous loading, half and half loading and capacitive top loading.
[ Hits: 633 | Votes: 4 | Rating: 6.25 ]
- Homebrew 40-80 meter dipole
- A 40/80 meters dipole made with two loading coils based on a project by IK1ZOY
[ Hits: 1382 | Votes: 4 | Rating: 8.75 ]
- An automatically tuned 7-30MHz mobile antenna
- This is a base-loaded vertical antenna that mounts on the car's roof. The loading coil is designed as a variable inductor, with a three-legged chariot that travels up and down inside the coil, with grooved brass wheels running on the coil turns, and driven by a slotted rotor tube.
[ Hits: 4046 | Votes: 2 | Rating: 1 ]
- Analysis Of Antenna Mast Strength and Bending Stress
- Calculations for determining the wind loading stress on an antenna mast. Link to a spreadsheet for calculating the mast bending stress based on wind speed and antenna cross sectional area.
[ Hits: 6329 | Votes: 75 | Rating: 8.65 ]
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