40m vertical antenna

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40m vertical antenna

37 links - and 1 categories

Antennas : 40M
  • 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 ]
  • 40m Wire Antennas Comparison - On the field comparison among C-Pole antenna, an EFHW vertical antenna and an Inverter V dipole antenna. Test is done using two identical WSPRLite beacons that transmit with 200mW on the WSPR frequency and analyzing spotted results.
    [ Hits: 170 | Votes: 1 | Rating: 3 ]
Antennas : 40M : 40 meter Delta Loop Antennas
  • Delta Loop DX Antenna for 40 meters band - A monoband delta loop antenna for the 7 MHz. This vertically polarized DX Antenna is a full wavelength sngle side antenna and has a total length of 42.3 meters (137,1 inch) Can be easily setup with a flag pole or fishing pole as center top mast. For optimal performance lower side should be at 2 meter above the ground. This antenna offers a low radiation angle and 1 DB Gain.
    [ Hits: 431 | Votes: 3 | Rating: 6.33 ]
  • Building a 40m Delta Loop Antenna - An experimento of a 40 meter delta loop antenna both in horizontal and vertical polarization and several elevation angles with interesting notes about the effect of the radial field under the antenna.
    [ Hits: 290 | Votes: 4 | Rating: 8.25 ]
Antennas : 40M : 40 meter Vertical Antennas
  • 40m Vertical End-Fed Antenna - A quarter wave vertical end-fed antenna for the 40 meters band. As all vertical antennas, also this aerial requires a good earthing system. In this project the ground is composed by twelve 4, wires buried in the lawn by using a spade to create a slit to drop the wire into.
    [ Hits: 2688 | Votes: 7 | Rating: 5.43 ]
  • Vertical bazooka antenna for the 40m  new - A quarter wave vertical omni-directional antenna for 7 MHz. Formulas for dimensions in feet and meters are provided. Ideal radial angle is between 35° and 45°. Velocity factor (Vf) varies based on coax type.
    [ Hits: 129 | Votes: 7 | Rating: 6.85 ]
Antennas : 80M
  • Portable Vertical Antenna for 40 and 75 - Portable Vertical Antenna for 75m and 40m featuring Low radiation angle for DX, easy to install and to match 50 ohms
    [ Hits: 3930 | Votes: 7 | Rating: 7.14 ]
Antennas : Array Antennas : End-Fed
  • Multiband portable wire antennas - Vertical end fed antenna used for portable operations. The antenna will work on 80 with acceptable results, it will work fine on 40m, and it will be a good deal better than a normal 1/4 wave GP on 20, 17, 15 meters.
    [ Hits: 186 | Votes: 0 | Rating: 0 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • 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 ]
  • Comparing Mobile whip versus EF HW Vertical - PH0NO conducted field tests comparing a mobile antenna (DX-UHV) to an end-fed half-wave wire. Results on 20m showed the end-fed wire outperforming the mobile antenna, with a significant difference in signal strength. On 40m, the end-fed wire surpassed the mobile antenna in spots and reach. While the mobile antenna is more practical, the end-fed wire offers superior performance. Further testing is planned.
    [ Hits: 81 | Votes: 0 | Rating: 0 ]
Antennas : Vertical
  • 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 ]
  • A 40m-10m vertical antenna with elevated radials - A multiband vertical antenna for HF bands with elevated ground radials slant down at 45 degrees and acting also as guy wires.
    [ Hits: 540 | Votes: 1 | Rating: 6 ]
  • 40m center loaded vertical antenna - A 5 metre center loaded vertical for 40m combined with a 4 wire ground plane.
    [ Hits: 294 | Votes: 0 | Rating: 0 ]
  • 80m-40m Dual-Band Vertical - A dual band 40-80 vertical antenna on an 18m Spiderbeam Fiberglass Spiderpole, with monoband performance
    [ Hits: 159 | Votes: 2 | Rating: 10 ]
Radio Equipment : HF Portable Antenna : Buddipole
  • Buddipole vertical on 40m - A report on working a CQWW SSB on 40m with a vertical buddipole antenna
    [ Hits: 613 | Votes: 1 | Rating: 1 ]
Radio Equipment : HF Vertical Antenna : Butternut HF2V
  • HF2V 80 40m Vertical - Article on the HF dual band antenna with construction details and how to add 160 meters to the HF2V
    [ Hits: 3022 | Votes: 10 | Rating: 7.2 ]

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