ground antenna

ground antenna

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• Easy VHF Antenna - A New Way to build a 1/4 Wave Ground Plane Antenna
  [ Hits: 1023 | Votes: 1 | Rating: 3 ]

• K7EA 30 Meter Ground Plane Antenna - A 30 Meter Quarter Wave DIY Ground Plane Antenna that loads up nicely also on 12 and 6 meters
  [ Hits: 741 | Votes: 3 | Rating: 9.67 ]

• 2 element GP for 7 MHz - A 2-element Parasitic Ground Plane for 40 Meters concept antenna
  [ Hits: 891 | Votes: 3 | Rating: 7 ]

• The 40 Meter Inverted V Antenna - This 40 meter Inverted V antenna was tested and tuned at a height of 35 feet and proved excellent results. The ends of the antenna are about 11 feet above the ground. Article and video available
  [ Hits: 1484 | Votes: 9 | Rating: 8.67 ]

• 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: 2692 | Votes: 7 | Rating: 5.43 ]

• GP antenna for 70 cm - A 70cm ground plane antenna made with a 90cm of 1mm silver steel rod
  [ Hits: 590 | Votes: 3 | Rating: 7 ]

• 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: 912 | Votes: 61 | Rating: 5.34 ]

• 20m Half-Wave End Fed - 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: 1845 | Votes: 7 | Rating: 8 ]

• 40 m Wire 4 Square Vertical Array - 40 meter four square vertical array using four full-size 40 meter ground plane antennas, using only two radials
  [ Hits: 1069 | Votes: 2 | Rating: 9 ]

• Broadcast Antennas on Buildings - When a broadcast antenna is to be placed on top of a building, there are special problems of feeding and grounding. The radiator is usually electrically short, that is, much less than one-quarter wavelength high.
  [ Hits: 358 | Votes: 2 | Rating: 10 ]

• Portable or Emergency VHF Antennas - Ground Plane - 1/4 wave vertical, J-Pole, 3 Element Yagi Beam and simple antenna supports
  [ Hits: 1010 | Votes: 1 | Rating: 8 ]
• 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 ]

• A Ground Plane Antenna for NOAA Weather Stations - An introduction to antennad including a DIY assembly instruction for a A Ground Plane Antenna for NOAA Weather Stations
  [ Hits: 2190 | Votes: 12 | Rating: 6.67 ]

• Ground plane for 144, 222 and 440 MHz - Here we have a ground plane antenna mostly used for 144, 222, 440 Mhz. Its one of the simplest antennas to make. New hams can build this with little to no experience in antenna building.
  [ Hits: 1263 | Votes: 10 | Rating: 5.7 ]

• The 10/15/20 Meter Trap Vertical Antenna - This antenna project came out very nice. It's a rugged homebrew multi-band trap vertical antenna that works the 10, 15, and 20 meter amateur radio bands. The antenna can be mounted on the ground or on a mast. Mounted on the ground the antenna has a low take off angle for working DX. If mounted on a mast the antenna will acheive both a low angle as well as another radiation lobe that has a much higher take off angle.
  [ Hits: 4175 | Votes: 14 | Rating: 6.08 ]
• Short Vertical Antennas and Ground Systems - Relevance of a proper ground systems on short HF vertical antennas, with an analysis on a vertical antenna for 160 meter band
  [ Hits: 458 | Votes: 0 | Rating: 0 ]
• Radials on Vertical Antennas - Experimental Determination of Ground System Performance for HF Verticals
  [ Hits: 1404 | Votes: 9 | Rating: 6.67 ]

• Double Cross Satellite Antenna - An easy to build antenna for ground reception of NOAA weather or amateur satellite signals. Double cross antenna by Gerald Martes
  [ Hits: 3076 | Votes: 15 | Rating: 4.74 ]

• Five Antennas Switch Box - A project of a 5 Antennas Relay Switch Box, all Switches & Relays have both contacts wired in parallel to improve reliability of operation, to prevent static build up, when an antenna is not in use the feeder coax is grounded.
  [ Hits: 1248 | Votes: 1 | Rating: 10 ]

• Noise Canceller Project - This project was intended to accompany the stealth antenna project. Author want to see how effective a noise canceller could be in reducing the background noise floor when attic / stealth antennas are being used.
  [ Hits: 709 | Votes: 0 | Rating: 0 ]

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