20 m long wire antenna9 links
- W5GI Mystery Antenna
- W5GI Mystery Antenna is a multi-band wire antenna that performs exceptionally well even though it confounds antenna modeling software.
This antenna covers 80 to 6 meters with low feed point impedance and will work with most radios, with or without an antenna tuner. It is approximately 100 feet long, can handle the legal limit, and is easy and inexpensive to build. It is similar to a G5RV but a much better performer especially on 20 meters.
[ Hits: 131034 | Votes: 113 | Rating: 7.8 ]
- 9:1 Voltage Unun
- A 9:1 voltage unun using a T-200-2 powdered iron toroid core to feed a long wire multiband antenna.
[ Hits: 1266 | Votes: 5 | Rating: 6.6 ]
- 20 thru 10 Meter Fan Dipole
- The 20 thru 10 meter dipole is constructed from stranded insulated wire available in most hardware stores.
The feedpoint uses an 8 inch long section of 2 inch diameter PVC pipe. A section of wire joins the elements at either side of the feedpoint to avoid the inductance of square knots used on lower frequencies.
[ Hits: 2037 | Votes: 7 | Rating: 6.79 ]
- TX Four Square Antenna
- A 220-ft tower that has five catenary lines, each about 500 feet long. Four of these lines, running NE, SE, SW, and NW support four 1/4-wavelength wire verticals used in a 160-meter four-square antenna.
[ Hits: 692 | Votes: 0 | Rating: 0 ]
- RF Measurement on W3EDP antenna
- RF Current measurements on a Long Wire W3EDP antenna
[ Hits: 477 | Votes: 1 | Rating: 1 ]
- W3EDP Antenna Checkout for PLP
- The W3EDP is a 85 foot long wire and a 17 foot counterpoise. At N4KGL
[ Hits: 708 | Votes: 0 | Rating: 0 ]
- Kioan's calculator for building a Cantenna , directional waveguide antenna for long-range Wi-Fi
[ Hits: 6137 | Votes: 42 | Rating: 6.8 ]
- Long wire and Un-Un
- Testing log wire antennas and a unun by G0KYA
[ Hits: 608 | Votes: 1 | Rating: 6 ]
- 5 element wire Yagi antenna for 20 m
- A 5 element wide spaced yagi for the 20m long path to Europe was installed at ZL6QH, the antenna is fed with a 600 ohm open wire feed line.
[ Hits: 849 | Votes: 0 | Rating: 0 ]
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