20 meter

20 meter

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• 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 ]

• Multiband delta loop by DL2HCB  ^pop - A 10-20 meters coverage delta loop antenna by DL2HCB
  [ Hits: 81658 | Votes: 42 | Rating: 4.79 ]

• VK5BR 20-40 Metre EH Antennas  ^pop - How to construct a very small but efficient Antenna with PVC Plumbing tube and discarded fruit cans. - Just the thing to fit in a small space such as the house attic
  [ Hits: 32229 | Votes: 20 | Rating: 7.24 ]
• I4SBX EH Antennas - Three eh antenna plans for 20 40 meters bands.
  [ Hits: 7002 | Votes: 2 | Rating: 5.5 ]
• How to build your own Magnetic Loop - An easy guide to "How to build your own magnetic loop" for 20 meters
  [ Hits: 14501 | Votes: 9 | Rating: 6.56 ]

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

• 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 ]
• 20m QRP Dipole - Instructions to build a portable dipole for 20 meters
  [ Hits: 16721 | Votes: 6 | Rating: 9.17 ]

• 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 ]

• A 5 band log periodic dipole array - Modified version of the Telerana antenna which was orginially featured in the July 1979 issue of QST. The array is suspended within a framework made of fiberglass poles emanating from a central hub with the ends tied together with light weight rope around the perimeter. 10-15-20-30-40 meter band coverage
  [ Hits: 10004 | Votes: 12 | Rating: 6.59 ]

• EA5XQ's Projects: Magnetic Loop - Due to my job I have top travel a lot around the world, in order to find a way of making radio I decided to build a Magnetic Loop after some comments of other colleagues for working between 20 and 80 meters mainly.
  [ Hits: 1853 | Votes: 0 | Rating: 0 ]

• 6 Meter Moxom - Download a 6 meter moxon antenna, drawings, photos, plots by Allen Baker KG4JJH, (10 Mb!)
  [ Hits: 3829 | Votes: 7 | Rating: 3.43 ]

• A tri-band 2 element portable Yagi - HF Wire Yagi antenna with notes and eznec file on original article of a Portable 3-Band Yagi antenna for 10-15-20 meter band made with wire elements. Include link the original to QST article.
  [ Hits: 15051 | Votes: 4 | Rating: 7 ]

• 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 ]

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

• MF and HF Amateur Radio Band Charts - Easy to read set of band charts for the amateur radio MF and HF bands: 160, 80, 60, 40, 30, 20, 17, 15, 12, and 10 meter by W5JCK
  [ Hits: 1607 | Votes: 6 | Rating: 3 ]

• Using the Heath SB-200 Linear on Six Meters - Improvements to Using the Heath SB-200 Linear on Six Meters by Ron Klimas, WZ1V
  [ Hits: 2881 | Votes: 5 | Rating: 4.2 ]

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