20 meters antenna

20 meters antenna

Pages: [prev] 1 2 3 4 5 6 7 8 9 10 11 12 [next]

• DK7ZB-5-Band-Quad - 2 element Quand antenna for 10 - 12 - 15 -17 - 20 meters band
  [ Hits: 10903 | Votes: 10 | Rating: 7.61 ]
• Multiband Cubical Quads - EI7BA Multiband Cubical Quads projects, includes two elements quad antennas for 10 12 15 17 20 meters band. Performance considerations, detailed pictures and construction notes.
  [ Hits: 7915 | Votes: 5 | Rating: 9.4 ]

• I4SBX EH Antennas - Three eh antenna plans for 20 40 meters bands.
  [ Hits: 7002 | Votes: 2 | Rating: 5.5 ]
• W5GI Mystery Antenna  ^pop - W5GI Mystery Antenna is a multi-band wire antenna that performs exceptionally well even though it confounds antenna modeling software. This antenna covers 80 to 6 meters with low feed point impedance and will work with most radios, with or without an antenna tuner. It is approximately 100 feet long, can handle the legal limit, and is easy and inexpensive to build. It is similar to a G5RV but a much better performer especially on 20 meters.
  [ Hits: 139383 | Votes: 123 | Rating: 7.55 ]
• Helical loop antenna for 20 meters - A Helical Loop Antenna for the 20-meters Band
  [ Hits: 6071 | Votes: 3 | Rating: 5.67 ]

• VK5AH -HF 4 Bander dipole  ^pop - A multiband 80-40-20-15 meters dipole wire antenna that can be extended to cover 160 meters too.
  [ Hits: 54044 | Votes: 22 | Rating: 6.68 ]

• 20m T-Monopole - 20m T-Monopole short vertical antenna for 20 meters by AA5TB
  [ Hits: 12206 | Votes: 6 | Rating: 8.33 ]

• Trapped dipole for 40-80-160 meters  ^pop - Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe by W8NX
  [ Hits: 96972 | Votes: 119 | Rating: 6.24 ]

• W3FF Portable Dipole - This is the antenna w3ff designed for his walking portable station. It is a dipole constructed out of the plastic plumbing pipe CPVC. There are telescoping whips at the ends of each side of the dipole, and these whips are adjusted to bring the antenna into resonance on each of five HF Bands 10, 12, 15, 17, and 20 Meters
  [ Hits: 22068 | Votes: 14 | Rating: 8.13 ]

• End fed halfwave antenna and matching unit - One is an EFHWA for 20-40 meters, and the other is a matching unit for the antenna by n0lx
  [ Hits: 10398 | Votes: 5 | Rating: 5.4 ]

• G5RV vs. Ground Plane on 80M - Comparison tests by WF7T of a G5RV antenna vs a GP antenna on 80 meters band
  [ Hits: 1549 | Votes: 3 | Rating: 7 ]

• Mobile Helix Antennas for HF - Normal mode helix antennas for HF mobile. Photos andn plan for a 20 meters mobile helix antenna by N2MH
  [ Hits: 13451 | Votes: 15 | Rating: 7.46 ]
• A two dollar helical hf portable antenna - Here is an easily transportable vertical antenna for 20 meters collapsible to 4 feet that costs about $2.00 to make. This was created as a fun project to demonstrate how to enjoy operating HF in the field with a home-made portable antenna without spending a ton of money. Bev AH6NF (YL) made this antenna, tuned and ready to operate in less than one hour
  [ Hits: 22387 | Votes: 14 | Rating: 7.65 ]

• LU9DPD Windom dipole - A multiband windom dipole antenna for 80 40 20 10 meters, feeded with a home made 4:1 balun, in spanish.
  [ Hits: 5342 | Votes: 5 | Rating: 6 ]

• VU2TQC Slim Jim - An home made slim jim antenna for 2 meters band by VU2TQC
  [ Hits: 1128 | Votes: 0 | Rating: 0 ]

• Understanding Standing Wave Ratios SWR - We worry a lot about Standing Wave Ratio (SWR) in amateur radio since SWR is one indication of how well our antenna system is working. Most HF transceivers and antenna tuners have built in SWR meters. SWR is a measure of a transceiver' s output power verses the portion of that power reflected by the antenna system
  [ Hits: 8719 | Votes: 8 | Rating: 4.75 ]

• HS0ZEE Antenna Tower Installation - Pictures and history of HS0ZEE 37 meters antenna tower installation with a cubical quad on the top of this tall radio mast.
  [ Hits: 2475 | Votes: 6 | Rating: 8.67 ]

• QRP 20m Antenna Tuner Unit - A QRP antenna tuner for 20 meters band
  [ Hits: 10841 | Votes: 6 | Rating: 5.83 ]

• 4 element yagi for 20 meters - Pictures and plans of a 4 elements yagi beam antenna for 14 Mhz
  [ Hits: 13796 | Votes: 26 | Rating: 4.33 ]

• ZeroFive Antennas - Vertical antennas for all HF bands, expecially 80 40 20 meters bands
  [ Hits: 7083 | Votes: 40 | Rating: 9.24 ]

Pages: [prev] 1 2 3 4 5 6 7 8 9 10 11 12 [next]