helical
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Antennas : 160M- The 160M No Excuses Homebrew Vertical
- This antenna is designed for stations having a difficult time putting a decent signal on 160M from small or CC&R d lots. It is a 24.5 ft. vertical antenna, made from three 10 ft. PVC sections bolted together, and half wavelength of antenna wire helically wound around the PVC sections.
[ Hits: 404 | Votes: 0 | Rating: 0 ]
- Directional Helical Antenna
- This antenna is intended for the 20-meter Band.
There are two Voltage Fed Helical Dipoles, made with 2 slinky that fed with phase shift in 90 degree
[ Hits: 1083 | Votes: 1 | Rating: 8 ]
- Helically wound antenna for 40m
- A helically wound vertical antenna experiment. 14 meter of wire wounded on a 8 meter fishing pole with 4 elevated radials
[ Hits: 538 | Votes: 2 | Rating: 9 ]
- 2 Element Helical Yagi Beam for 40m
- A helically wound two element 40 meter yagi beam antenna from a 1974 QST article
[ Hits: 6648 | Votes: 17 | Rating: 6.52 ]
- Helically Loaded Magnetic Loop Antenna
- A considerably shortened Magnetic Loop antenna with performance of a single conductor text book magnetic loop.
[ Hits: 572 | Votes: 16 | Rating: 1.56 ]
- Helical Antenna Design Calculator
updated
- Helical antennas invented by John Kraus give a circular polarized wave. They are one of the easiest to design. Find a tube with a circumference equal to one wavelength, and wrap wire in a helix spaced a quarter wavelengt
[ Hits: 2158 | Votes: 16 | Rating: 6.63 ]
- The Helical Windom Antenna
- A marriage of the windom and slinky antennas, experimental home brew antenna by NC4TC
[ Hits: 2709 | Votes: 0 | Rating: 0 ]
- Helical Antenna for WiFi
- Improved Helical Antenna Design for 802.11b WLAN by PA0HOO
[ Hits: 2892 | Votes: 5 | Rating: 6.4 ]
- Helical Antennas by F5ZV
- Article on Helical Antennas in french
[ Hits: 964 | Votes: 1 | Rating: 2 ]
- Helical Antennas
- The Helical antenna description, a simple way of obtaining high-gain and a broad band of frequency characteristics
[ Hits: 1341 | Votes: 1 | Rating: 10 ]
- HF Helical Whip Calculator
- Calculating HF helical whip antenna for mobile or portable operation
[ Hits: 1157 | Votes: 6 | Rating: 3 ]
- Helical HF Portable Antenna
- An easily transportable vertical antenna for 20 meters collapsible to 4 feet
[ Hits: 1772 | Votes: 0 | Rating: 0 ]
- Helical Dipole for 40m
- An helical dipole made with 10,7 meters of wire resonating on the 40 meters band, by PY1ZFK based on a project by DL8VO
[ Hits: 1085 | Votes: 3 | Rating: 7 ]
- Mixed Mode Helical Antenna
- An experimental omni-directional antenna for 70cm which has both horizontal and vertical gain
[ Hits: 1004 | Votes: 3 | Rating: 8 ]
- Quadrifilar Helical Antennas
- A page dedicated to the Quadrifilar Helical Antennas, with projects, pictures and antenna plans by OH2GVB
[ Hits: 946 | Votes: 7 | Rating: 3.85 ]
- Simple Balcony Antenna
- Antenna for limited space, made from 24AWG wire helically wrapped around the top element of a 3-element cane pole, is basically a fully-loaded vertical and performance are limited and should represent the last resort for extreme cases.
[ Hits: 920 | Votes: 1 | Rating: 7 ]
- WiFi Long Range Helical Antenna
- High Gain Wi-fi Helical Antenna by AB9IL
[ Hits: 1284 | Votes: 4 | Rating: 6 ]
- WiFi Helical Antenna Design
- DIY a Wi-FI Helical Antenna for better performances, a project by PA0HOO i Dutch end English
[ Hits: 1454 | Votes: 4 | Rating: 4.5 ]
- Online Helical Coil Calculator
- This online calculator will give as output the Inductance L of a coil, including the total lenght of the wire needed to wound the coil.
As input, requires the Diameter, number of turns, wire diameter and turn spacing
[ Hits: 341 | Votes: 7 | Rating: 5.71 ]
- PC Board Filters
- Offer performance comparable to tin-box filters, and except for being bigger, stack up pretty well with those expensive little helical jobs. You just have to be able to make your own PC boards.
[ Hits: 379 | Votes: 0 | Rating: 0 ]
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