antennas 40 80

antennas 40 80

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• Experiments with 160m antennas - Experimentin wire antennas on top band using several type of aerials. This includes a 40 to 160 meters EndFed Half Wave kite antennas and 160m/80m loaded vertical antenna.
  [ Hits: 177 | Votes: 0 | Rating: 0 ]

• Low Bands Battle Creek Antenna - This antenna is designed for 40, 80 and 160 meters to complement a tri-band beam normally taken on DX peditions for 10, 15 and 20 meters, so six bands can be worked with only two antennas.
  [ Hits: 137 | Votes: 0 | Rating: 0 ]

• The 40m Delta Mono-Loop - A delta loop antenna project for the 40 meters band, include dimensions 80 meters band, with construction details, schematic and tuning instructions
  [ Hits: 4046 | Votes: 10 | Rating: 6.89 ]

• Linear Loaded 40m Dipole - Dipole for 40m band. It is a simple linear loaded dipole feeded with 450-Ohm openwire feedline. Designed it for resonance at 7.050 MHz, can be tuned on 30m and 80m bands with an external antenna tuner. Build with simple electrical copper wire (2.5 mmq/13 awg) and two fishing poles with size of about 7 m/23 ft.
  [ Hits: 161 | Votes: 0 | Rating: 0 ]

• Broadband 80 meter dipole - The AB2RA bowtie 80 meter antenna includes also a 40 meter dipole
  [ Hits: 864 | Votes: 0 | Rating: 0 ]
• Shortened 80m Antenna - An antenna for 80 meters band for those who does not have enough space to setup a halwave wire dipole that is aprox 130ft or 40 meters. The antenna is an open-wire-fed shortened dipole
  [ Hits: 421 | Votes: 1 | Rating: 1 ]

• Capacitive Antenna by DL7JV - Experimenting with capacitive antennas for 40 and 80 meters band. A very space-saving antenna with good receivings caracteristics
  [ Hits: 166 | Votes: 1 | Rating: 9 ]

• 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 ]
• 80m-40m Loaded Dipole - A dual band dipole antenna for 40 and 80 meters band. Total lenght of 26 meters, foreseen two coils at aprox 11 meters distance from center feed.
  [ Hits: 252 | Votes: 4 | Rating: 5 ]

• Multi-band End-Fed Antenna - An excellent guide to homebrewing multi band end-fed antennas. The article, embed several drawings including diagrams and detailed pictures, illustrating the basic funcionality of end-fed antennas. The author gives some basic hints on how to build a half size antenna for 80 40 to 10 meters and a 6 meter to 40 meter configuration. It is also well described how to build the impedance transformer and the loading coils for lower bands.
  [ Hits: 1105 | Votes: 6 | Rating: 4.5 ]
• Multiband portable wire antennas - Vertical end fed antenna used for portable operations. The antenna will work on 80 with acceptable results, it will work fine on 40m, and it will be a good deal better than a normal 1/4 wave GP on 20, 17, 15 meters.
  [ Hits: 187 | Votes: 0 | Rating: 0 ]

• End Fed Half-Wave Antennas - An interesting article on end fed half-wave wire antennas with a couple of original experiments. Author illustrate the role of the QRP matchbox, and a 40/20 meter antenna with a center stub making it a large bandwidth antenna for 40 and 20. Includes also an 80/40 end fed with the typical coil to make it available on 80 merts band.
  [ Hits: 288 | Votes: 2 | Rating: 10 ]
• Full size 80m End Fed Half Wave Antenna - The author reflects on expanding their antenna for 80m coverage during lockdown. They extend the End Fed Half Wave (EFHW) using a Spiderbeam pole and "cheating" by dog-legging across their garden. Despite challenges, they achieve coverage for multiple bands with minimal cost. Practical Wireless features EFHW antennas, including a pre-made 20m EFHW extended for 40m.
  [ Hits: 89 | Votes: 0 | Rating: 0 ]

• Magnetic Loop Antennas for 40-80-160m - This magnetic loop DIY site is ment to be an introduction into making DX high quality magnetic loop antennas that will beat any dipole
  [ Hits: 233 | Votes: 2 | Rating: 8.5 ]

• Portable NVIS Loop for 80m to 40m - A portable (15.5 foot diameter) NVIS loop for 3.5 to 7.3 MHz. Performs well at high and low takeoff angles, and has smaller footprint than most NVIS antennas.
  [ Hits: 364 | Votes: 0 | Rating: 0 ]

• 80m-40m Dual-Band Vertical - A dual band 40-80 vertical antenna on an 18m Spiderbeam Fiberglass Spiderpole, with monoband performance
  [ Hits: 159 | Votes: 2 | Rating: 10 ]

• Fun and Games with the Spiderbeam 18 Meter Pole - A portable operation experience with a SpiderBeam pole during a contest, testing wire antennas, like dipole and delta loops configurations on 20 40 and 80 meters band.
  [ Hits: 313 | Votes: 1 | Rating: 10 ]

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