40 m

40 m

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• Shortened dipole for 10 & 40m bands - A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.
  [ Hits: 4138 | Votes: 1 | Rating: 1 ]
• Easy wire antenna for 40-20-10 meters - PE3HMP project of a triband wire antenna for 40 20 10 meters band, made using home made coils
  [ Hits: 11371 | Votes: 6 | Rating: 5.17 ]

• Multi-Band Super Mini Loop Antenna - How to make the Super antenna. To build this antenna you need a lot that is at least 100 feet across. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works as a 2 wavelength open loop or Bi-Square on the 40 Meter band
  [ Hits: 23212 | Votes: 8 | Rating: 6.95 ]

• VE7CA portable tribander yagi - 30/17/12 and 20/15/10-Meter Tribanders and a 40 meters inverted V wire yagi antenna
  [ Hits: 2655 | Votes: 1 | Rating: 5 ]
• 2 elements YAGI for field day operation - A wire yagi antenna for 20 and 40 meters band suitable for outdoor and field day operations
  [ Hits: 14572 | Votes: 7 | Rating: 6.14 ]

• Halo antenna for 70Mhz - Halo antenna for 4 meters band with dimensions, pictures and assembling instructions
  [ Hits: 5656 | Votes: 9 | Rating: 8.03 ]

• Trapped dipole for 40 80m - I0SJC trapped dipole for 40 and 80 meters, traps done with 170 turns 1 mm diam, on a 3.2 mm cilinder in Italian.
  [ Hits: 1648 | Votes: 1 | Rating: 1 ]

• Guanella 1:1 VHF choke balun - A model of a Guanella 1:1 VHF choke balun using a FT140-61 core
  [ Hits: 3620 | Votes: 9 | Rating: 3.11 ]

• Wire Dipole for 7.05 MHz - Inverted Vee antenna for 40m with simulation data by DF9CY
  [ Hits: 1626 | Votes: 0 | Rating: 0 ]
• Inverted V - Described is a simple inverted-V antenna which, when used with a balanced ATU, can be used on all the main Radio Amateur HF bands (80, 40, 20, 15 and 10m). The cental support is made in such a way that the wire can be coiled up for storage when the antenna is taken down.
  [ Hits: 3398 | Votes: 1 | Rating: 8 ]

• EH for 40 meters by CO6HK - Article on a homebrewed EH antenna for 40 meters band in spanish
  [ Hits: 2024 | Votes: 5 | Rating: 7.4 ]

• Noise Reduction on 40m - DF9CY implementation of W1HIS suggestion of inserting a common mode choke into a 40m antennas feed-line.
  [ Hits: 1383 | Votes: 0 | Rating: 0 ]

• The simple 144/440 copper pipe J - A simple dual band VHF UHF jpole antenna Projects by Dale Kubichek
  [ Hits: 8389 | Votes: 18 | Rating: 8 ]

• The Thick Loop - The performance of a small magnetic loop can be improved constructing it larger, thicker or both. The antenna is covering from 12 Megahertz to 32 megahertz and adding a 156 Pico farads ceramic capacitor it resonates on the 40 meters band. by PY1AHD
  [ Hits: 1041 | Votes: 0 | Rating: 0 ]

• Large multiband moxon antenna - This very large moxon antenna resonate on 80 40 and 10 meters, has been used for CQWW 2006 by a YU team project
  [ Hits: 4367 | Votes: 3 | Rating: 9.33 ]

• G3EJS portable antenna for the IC-703 - A portable antenna for 40 20 15 10 and 6 meters operations to be used and tuned with the Icom IC-703
  [ Hits: 3335 | Votes: 9 | Rating: 7.11 ]

• UHF Yagi for AO-40 - Based on DL6UW Yagi antenna's design-formula The forward gain is 13.6 dBi (about 11.5 dBd) and it's pretty small, about 1,5 m in length
  [ Hits: 2468 | Votes: 4 | Rating: 6.75 ]

• Balanced Line Tuner - A small Z-Match tuner, BLT, Balanced Line Tuner is a simple Z-Match tuner that works from 10-40 meters
  [ Hits: 917 | Votes: 0 | Rating: 0 ]

• G8JNJ Broadband HF Vertical Antenna - G8JNJ Broadband HF Vertical Antenna - Requires no tuner - great results from 40m to 10m plus 80m & 6m with reduced performance
  [ Hits: 4680 | Votes: 4 | Rating: 7 ]

• WebSDR on 20m, 40m and 80m  ^pop - On this page you can listen to and control a short-wave receiver located at the amateur radio club ETGD at the University of Twente. In contrast to other web-controlled receivers, this receiver can be tuned by multiple users simultaneously, thanks to the use of Software-Defined Radio. Provided by PI4THT
  [ Hits: 45729 | Votes: 523 | Rating: 7.25 ]

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