small antenna

small antenna

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• 160m Short Vertical Loft Antenna - This is a very small vertical 160m antenna that fits in the loft of even my small house. It was built as a way of getting a signal out on 160m for local AM contacts, but the local noise level was far too high to allow it to be used at night for this purpose. However, on WSPR it did a pretty good job with WSPR spots from a very long way across Europe being received when running 2.5W out.
  [ Hits: 208 | Votes: 1 | Rating: 7 ]
• 80m Inverted-L Base-loaded for 160m - 80m Inverted-L Antenna, Base-loaded for 160m antenna. This antenna is not a good DX antenna however within small garden where true DX antennas would be impossible it has performed very well.
  [ Hits: 123 | Votes: 1 | Rating: 10 ]

• An 80 m dipole antenna for restricted spaces - You can bend the wires in a half-wave dipole so that it takes up less space, with minimal loss of efficiency.It is advisable to get the ends of the antenna as high as possible, especially if children and animals are kept in the area around the antenna, as there are very high tensions on the ends of the antenna during transmission! In Norwegian
  [ Hits: 186 | Votes: 0 | Rating: 0 ]

• E-field Probe Antenna - A small active voltage probe antenna to aid reception on the LF bands
  [ Hits: 143 | Votes: 0 | Rating: 0 ]

• Small HF Antennas - Experiments on HF antennas for restricted spaces. In this article author experiments antennas for 80-10 meters band having just a very small garden and several restrictions. Basic antennas consists of laded multiband dipoles and fan dipole antennas
  [ Hits: 1022 | Votes: 19 | Rating: 7.31 ]

• Multiband End-fed 80-10m Antenna - A multi band antenna for HF band capable to operate from 10 to 80 meters band depending on wire lenght loaded with a small inductance neat the feed end.
  [ Hits: 367 | Votes: 2 | Rating: 6.5 ]

• Homebase 10 - The Homebase-10 is a simple to make wire halo antenna for 10m (28MHz) built using parts available from the local DIY store. The resulting antenna is very effective on 10m despite its small size and light weight. Also shown is a dual-band version for 10m and 6m.
  [ Hits: 326 | Votes: 1 | Rating: 3 ]

• Helical Antennas for 144 MHz - This article is about two excellent small helical antennas for the two meters band. With performance close to that of full sized antennas, these small helical antennas are low in profile but high in efficiency.
  [ Hits: 230 | Votes: 1 | Rating: 7 ]

• What is Horn Antenna - Horn Antenna - The energy of the beam when slowly transform into radiation, the losses are reduced and the focussing of the beam improves. A Horn antenna may be considered as a flared out wave guide, by which the directivity is improved and the diffraction is reduced. One of the first horn antennas was constructed in 1897 by Bengali-Indian radio researcher Jagadish Chandra Bose in his pioneering experiments with microwaves. The modern horn antenna was invented independently in 1938 by Wilmer Barrow and G. C. Southworth. This Horn model antenna is suitable employed in the UHF or SHF radio bands. Making this horn model antenna it will be easy for a beginner to make if it works in the 10GHz frequency, because small dimensions so it is not so difficult and also offers gain up to 25dBi.
  [ Hits: 74 | Votes: 0 | Rating: 0 ]

• Small Loop Antenna for the 80m to 10m - This article describes the development of two tunable antennas each consisting of three interconnected small loops and capable of providing excellent DX performance. The aerials are home-constructed, and located in a very small garden with a minimum of visual impact on the neighbours and are low enough in height to avoid the attention of UK planning authorities.
  [ Hits: 405 | Votes: 1 | Rating: 8 ]

• Magnetic Loop Antenna for 2 meters - A small, easy to build, copper tube magnetic loop antenna for the 2 meters band. In Italian
  [ Hits: 276 | Votes: 3 | Rating: 9.33 ]
• QRP HF Loop Antenna - This is an uncommon loop antenna, hombrewed without the small feeding loop. With small spare parts is possible to build a loop antenna tuner for portable usage tha can ben used with common HF QRP transceivers
  [ Hits: 162 | Votes: 1 | Rating: 10 ]
• Magnetic Loop for 20 meters band - A magnetic loop antenna designed for 14 MHz. This kind of antennas is also known as STL, small transmitting loop and can be an excellent solution when you are not allowed to put antennas on your roof
  [ Hits: 204 | Votes: 0 | Rating: 0 ]
• Magnetic Loop Controller for 4 Antennas - This project is for those ham amateurs who do not have a commercial one . It's easy to build with a soldering iron, a plastic case and a little knowledge of arduino. The controller is made with budget components you can find easily in Internet. The main component is a cnc shield that fits over an Arduino Uno. Both made a compact, small and cheap controller.
  [ Hits: 133 | Votes: 2 | Rating: 10 ]
• Multi-Band 4 Foot Magnetic Loop with Gamma Match - This antenna works on 17, 20, and 30 meters, with the best bandwidth on 20 meters. The bandwidth on 17 and 30 is quite small but usable. There is a 20 KHz bandwidth on 20 meters.
  [ Hits: 139 | Votes: 2 | Rating: 10 ]
• A More Efficient Magnetic Loop Antenna - The idea behind this antenna was to use multiple conductors in parallel to reduce the resistance losses in the antenna , and thereby improve the efficiency.For a given magnetic loop antenna, doubling the number of conductors from one to two will typically increase efficiency by about a factor of two. There is a limit, and beyond three or four conductors further increases are small, and may not be worth the bother.
  [ Hits: 215 | Votes: 2 | Rating: 5.5 ]
• Short receiving loop antenna - This page is a project for a small loop antenna for reception of short wave broadcasting. It is in Portuguese and contains pictures and schematics to build your own antenna
  [ Hits: 120 | Votes: 1 | Rating: 10 ]

• The Loop on Ground Antenna - An experimental antenna for HF reception. It consists of a single loop element mounted on the ground. It is stealthy, small, and quiet. EZ-NEC plots and on-air test results are included.
  [ Hits: 301 | Votes: 3 | Rating: 8 ]
• Small HF RX Loop - This is very common W7IUV Flag Antenna design is based on the PY3AGD antenna because it uses the antenna mounted horizontally and nd it is perfect for my small city lot installation.
  [ Hits: 147 | Votes: 0 | Rating: 0 ]

• A Versatile SOTA Antenna Tuner - This is a detailed, technical piece, intended mostly for makers and more creative activators, who enjoy building and using their own tools on the summits. A multiband portable antenna tuner supporting 10W, small and light, suitable for SOTA operations
  [ Hits: 265 | Votes: 2 | Rating: 10 ]

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