vertical antenna 40

vertical antenna 40

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• Experiments with 160m antennas - Experimentin wire antennas on top band using several type of aerials. This includes a 40 to 160 meters EndFed Half Wave kite antennas and 160m/80m loaded vertical antenna.
  [ Hits: 177 | Votes: 0 | Rating: 0 ]

• SAFARI 40-30m vertical Antenna - Roach pole vertical antenna for 40 and 30 meters band featuring good performance on short skips contacts compared to wire dipole
  [ Hits: 310 | Votes: 0 | Rating: 0 ]

• 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: 172 | Votes: 1 | Rating: 3 ]

• 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: 292 | Votes: 4 | Rating: 8.25 ]

• Shortened 40 meter Vertical for POTA SOTA - Build A Shortened 40 Meter Vertical antenna For POTA / SOTA Activations. A project for a portable wire antenna for 40 meters band suitable for POTA or SOTA operations.
  [ Hits: 125 | Votes: 1 | Rating: 10 ]
• Vertical bazooka antenna for the 40m - 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: 135 | Votes: 7 | Rating: 6.85 ]

• The Pop-Up Vertical 2.0 - Basically, this antenna is a 23-foot wire fed through a 4:1 un-un transformer. This antenna can be easily used in portable operation, for operating all bands from 40-10 meters.
  [ Hits: 254 | Votes: 0 | Rating: 0 ]
• 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: 187 | Votes: 0 | Rating: 0 ]

• 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 ]

• 40m center loaded vertical antenna - A 5 metre center loaded vertical for 40m combined with a 4 wire ground plane.
  [ Hits: 297 | 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: 160 | Votes: 2 | Rating: 10 ]

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