antenna trap

antenna trap

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• Trapped Dipole for 12 and 17 Meters - A small sized and very cheap antenna project that allow you to work on WARC bands with a total gain very close to the dipole in both bands. On 12 meters is a normal dipole, while on 17 is a trapped dipole. Article in Italia
  [ Hits: 887 | Votes: 1 | Rating: 1 ]

• Top Loaded Vertical Antenna for 80 Meters Band - Top Loaded Vertical Antenna 3,5 MHz 80m and a 14 MHz Trap for the 20m band. The weight of this portable vertical antenna is less than 1 kg, including the ground network. The weight of the telescopic fiberglass fishing rod is another 1kg. The rod expands from 1.5 meters to 8 meters.
  [ Hits: 268 | Votes: 0 | Rating: 0 ]

• Simple 20-40 m Dipole Antenna - A simple TRAP-dipole project for 20 and 40m bands includes EZNec simulations
  [ Hits: 1743 | Votes: 5 | Rating: 6 ]
• 20 40 80 Trapped Dipole - An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters.
  [ Hits: 1403 | Votes: 9 | Rating: 5 ]
• Trapped Dipole Antenna for 20-30-40m - An 20 30 40 meters trapped dipole antenna plan for sota and portable operations.
  [ Hits: 267 | Votes: 1 | Rating: 10 ]

• Multiband trapped end fed antenna - A multiband trapped end-fed antenna can cover 20 30 40m bands. An option for portable sota operations were weight end simplicity are essential
  [ Hits: 774 | Votes: 0 | Rating: 0 ]

• Trap on Coax Cable - A trap on the coaxial cable, also known as choke, helps to eliminate the sneaking of the reflected RF- energy to the shack. The trap can be made from the coaxial cable that feeds the antenna
  [ Hits: 964 | Votes: 2 | Rating: 6.5 ]

• Multiband trap dipole - This antenna is a classical antenna working on 7,10,14,18,50 MHz is implemented with three traps for 30, 17 and 6 meters
  [ Hits: 271 | Votes: 0 | Rating: 0 ]

• Tuning Antenna Traps - Tuning Antenna Traps without a Grid Dip Oscillator, using a bit of initiative and some standard equipment a ham should have in the shack.
  [ Hits: 912 | Votes: 1 | Rating: 9 ]
• Low Cost Antenna Traps - How to home made antenna traps with material you can easily find, and how to properly tune it.
  [ Hits: 470 | Votes: 5 | Rating: 6 ]
• Tuning Antenna Traps - The problem with making your own trapped HF antennas is usually getting the coaxial traps tuned to frequency. This article explains a method using a RF signal generator at +10dBm output into the coaxial trap.
  [ Hits: 276 | Votes: 2 | Rating: 6.5 ]

• Multiband wire vertical - An easy to make, cheap, no trap, multiband wire vertical antenna by PA1M
  [ Hits: 1466 | Votes: 1 | Rating: 4 ]
• 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 ]
• 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: 3020 | Votes: 5 | Rating: 5.2 ]
• 7 Bands Semi Vertical Antenna - A project of a semi vertical trap antenna that can be tuned for 7 bands
  [ Hits: 1868 | Votes: 1 | Rating: 10 ]
• OZ1CX - Multiband vertical antenna no tuner LC matched - A 4-Band vertical antenna that needs NO tuner, NO traps. Implement an LC matched on 4 bands with relay switching.
  [ Hits: 1011 | Votes: 1 | Rating: 8 ]

• W3DZZ - 80 to 10 meter antenna - A schematic design of the W3DZZ antenna in portugues with description of trap building
  [ Hits: 2587 | Votes: 7 | Rating: 6.72 ]
• A Low Cost Multi Band - W3DZZ trapped multi-band antenna, exposed in this practical wireless article
  [ Hits: 2056 | Votes: 3 | Rating: 7 ]
• OH2EC Antenna - A trapped dipole antenna based on the orignal W3DZZ antenna design resonating on 80 40 20 15 10 meters
  [ Hits: 1502 | Votes: 5 | Rating: 8.2 ]

• 1dBm Antennen - Multiband Trap Dipole, portable short antennas, accessories and kits by DG1DBM
  [ Hits: 475 | Votes: 12 | Rating: 5.58 ]

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