40 m

40 m

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• Invisible DX antenna for the low bands - Article by DK5WL describes a multi-band DX antenna for the 160m-40m amateur radio bands with low visibility but great performance for long distance communication.
  [ Hits: 7009 | Votes: 8 | Rating: 6 ]

• Ground Plane for 7 MHz - How to build a ground plane antenna for the 40 meters band in french
  [ Hits: 3148 | Votes: 2 | Rating: 7 ]
• 40 meter Moxon by SM0DTK - A wire moxon antenna plan for the 7 Mhz
  [ Hits: 7767 | Votes: 19 | Rating: 7.1 ]

• Vertical Moxon for 40 meters - A vertical half-moxon for the 7 Mhz by F6IRF
  [ Hits: 2828 | Votes: 1 | Rating: 7 ]
• Vertical Antenna For 40- 80-160 Meters - The basic antenna is a vertical monopole, using elevated radials to complete the ground plane by k5oe
  [ Hits: 4298 | Votes: 6 | Rating: 6 ]

• I0SJC G5RV antenna - A plan to homebrew a G5RV antenna, tunable on 10-15-20-40-80 meters band
  [ Hits: 1765 | Votes: 3 | Rating: 6 ]

• Another vertical antenna for 30, 40 and 80 meters - This article is to describe a multi band DX-dedicated antenna offering a minimum of compromises (such as lossy traps), for the hams not having any high-support
  [ Hits: 4377 | Votes: 4 | Rating: 3.5 ]

• Inverted L Portable Antenna - An 87ft inverted L portable antenna working on 80 40 30 20 15 meters band
  [ Hits: 2401 | Votes: 3 | Rating: 9.33 ]

• AO-40 70cm Uplink Antenna - Homebrew satellite antenna by G6LVB
  [ Hits: 2192 | Votes: 2 | Rating: 3 ]

• MFJ-940 modification - The MFJ-940 VERSA TUNER II is a useful little antenna tuner for the HF-bands. However it suffers from a minor design error, which can be easily rectified.
  [ Hits: 2647 | Votes: 2 | Rating: 7.5 ]

• Build an antenna for 23 cm band - Building an omnidirectionnal antenna for the 23 cm band, 1240 - 1270 Mhz
  [ Hits: 1586 | Votes: 4 | Rating: 6.5 ]

• Antenne verticale HF. - A vertical antenna project than can present low swr from 40 to 10 meters by using a balun in french
  [ Hits: 2217 | Votes: 0 | Rating: 0 ]
• Dual Band vertical antenna for 20/40 - A 20 and 40 meter vertical on Autopilot by K6MHE PDF File
  [ Hits: 12612 | Votes: 14 | Rating: 6.57 ]

• The FD4 Windom antenna - This antenna originated from darc QRV magazine in 1971 should be attributed to DJ2KT, works on 80 40 20 10 meters without ATU, based on the Windom principle.
  [ Hits: 3744 | Votes: 3 | Rating: 8 ]

• Homebrew a W3DZZ antenna - Build your own multiband W3DZZ antenna resonating on 80 40 20 15 and 10 meters band
  [ Hits: 20883 | Votes: 25 | Rating: 5.69 ]

• Antique Radio Knobs - Specialize in reproducing antique radio knobs and parts from the 1920's - 1940
  [ Hits: 1597 | Votes: 3 | Rating: 1 ]

• KL7AA Anchorage Amateur Radio Club - The Anchorage Amateur Radio Club is the largest amateur radio organization in Alaska with over 340 members.
  [ Hits: 829 | Votes: 2 | Rating: 10 ]

• Live VLF Natural Radio - A collection of VLF natural radio live streams. Where possible, streams are synchronised to provide stereo pairs with baselines of up to 4000 miles.
  [ Hits: 2567 | Votes: 7 | Rating: 4.86 ]

• 40 AMP Power Supply - G4YNM article on a 40A power supply unit
  [ Hits: 12093 | Votes: 21 | Rating: 6.3 ]

• SoftRock SDR Interest Group - 5000+ member discussion group for the low-cost series of SoftRock SDR receiver and transceiver kits.
  [ Hits: 1015 | Votes: 3 | Rating: 7 ]

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