20 m vertical
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Antennas : 20M : 20 meter Vertical Antennas- A shortened 20m vertical
- A shortened 20m vertical antenna design made with 4Nec2
[ Hits: 1726 | Votes: 1 | Rating: 6 ]
- High Performance 40 Meters Vertical
- 40 meter vertical antenna construction, a shortened easy-to-build vertical, with no-radials,
made from surplus military camouflage poles
[ Hits: 2228 | Votes: 2 | Rating: 8.5 ]
- Ground Plane Antenna Calculator
- This calculator is designed to give the vertical length of a quarter-wave ground plane antenna, and the length of each of the four radials for the selected frequency you have entered
[ Hits: 901 | Votes: 61 | Rating: 5.34 ]
- Phased Vertical Antennas for 40m
- Phased wire vertical antennas for 40 meters band
[ Hits: 1009 | Votes: 2 | Rating: 7.5 ]
- 20m Half-Wave End Fed
updated
- A Half wave antenna has a high impedance feed point. This can be matched using a 1/4 wave stub matching section and converts the 40m vertical into an L-shaped 20m J-Pole antenna. The 300 ohm feeder used for this purpose must be kept away from the ground.
[ Hits: 1841 | Votes: 7 | Rating: 8 ]
- 20 Meter Moxon Antenna
- A club project experiment about a vertical Moxon antenna for 20 meter band
[ Hits: 1782 | Votes: 4 | Rating: 3.75 ]
- 5 Band Telescopic Vertical Antenna
- 5 Band 1/4 wave Telescopic Antenna. The 20m to 10m, antenna is simple and cheap to make, and has a performance that matches commercial antennas but at cost considerably lower. The design was purposely based on a telescoping fibre glass fishing rod as this allows it to be easily stowed away in the car.
[ Hits: 3601 | Votes: 3 | Rating: 9.33 ]
- Overview on some SOTA portable antennas
- A review of some portable antennas for SOTA operations, including linked dipoles, end-fed, verticals
[ Hits: 684 | Votes: 1 | Rating: 4 ]
- The Stake Stick Vertical
- A portable HF vertical antenna that can be used from 10 to 20 meters band
[ Hits: 396 | Votes: 0 | Rating: 0 ]
- Portable Vertical Antenna
- A home made portable vertical antenna, that with a single 1/4 wave counterpoise wire is possible to achieve less than 1.5:1 SWR on 40, 30, and 20 meter bands. It is basically a center load, shortened ground plain vertical antenna.
[ Hits: 362 | Votes: 0 | Rating: 0 ]
- 40 m short vertical
- A shortened and invisible wire antenna for 7 MHz
[ Hits: 6189 | Votes: 17 | Rating: 7.65 ]
- Balloon Vertical Omni-Antennas
- Experimenting vertical wire antennas for 40 and 20 meters supported by balloons resulting in excellent gain in RX and good overall performance against horizontal dipole
[ Hits: 771 | Votes: 1 | Rating: 5 ]
- 20m 40m trapped squid pole antenna
- An homemade portable vertical antenna with a trap near the mid point of the main element. The trap is made with 42mm diameter PVC pipe with 9 turns of wire on it
[ Hits: 3017 | Votes: 5 | Rating: 5.2 ]
- Buddipole vertical on 40m
- A report on working a CQWW SSB on 40m with a vertical buddipole antenna
[ Hits: 613 | Votes: 1 | Rating: 1 ]
- TW Antennas Assembly
- TransWorld Antennas TW2010 Traveler HF Portable Vertical Antenna setup instructions
[ Hits: 662 | Votes: 0 | Rating: 0 ]
- TransWorld TW2010L Review
- A brief review of the TW2010L Backpacker Antenna. This is a portable vertical antenna covering 10,12,15,17 and 20m
[ Hits: 420 | Votes: 2 | Rating: 9.5 ]
- Butternut HF9V Installation
- Assembling installing and tuning the Butternut HF9V multiband vertical antenna
[ Hits: 725 | Votes: 1 | Rating: 9 ]
- Maldol MFB-300 HF vertical antenna review
- The Japanese-made Maldol MFB-300 HF vertical antenna offer extremely wide-band performance, with a specified frequency range of 1.0-60 MHz.
[ Hits: 432 | Votes: 2 | Rating: 5.5 ]
- PL259 Surge Arrestor
- Limiting static surges on dipoles, verticals or end fed antennas
[ Hits: 900 | Votes: 0 | Rating: 0 ]
- A Simple SSB PEP Measuring Procedure
- The correct procedure for measuring SSB PEP (Peak Envelope Power), using an oscilloscope with a vertical bandwidth of at least 20 MHz, or a monitor scope.
[ Hits: 420 | Votes: 0 | Rating: 0 ]
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