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• The extended double zepp - This wire antenna exhibits extraordinarily high gain in a bi directional radiation pattern.
  [ Hits: 12408 | Votes: 28 | Rating: 8.11 ]

• Double Extended Zepp Antenna  ^pop - This double extended Zepp provides 3 db gain over a dipole on the band it is designed for. Each side or leg is about 5/8 wavelength long.
  [ Hits: 26154 | Votes: 28 | Rating: 6.35 ]

• VK5AH -HF 4 Bander dipole  ^pop - A multiband 80-40-20-15 meters dipole wire antenna that can be extended to cover 160 meters too.
  [ Hits: 54043 | Votes: 22 | Rating: 6.68 ]

• 40-80 Half-Extended Double Zepp Antenna - A dual-bander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole. This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting
  [ Hits: 11398 | Votes: 9 | Rating: 4.44 ]

• How To Make A Homebrew 4:1 Balun  ^pop - I built a homebrew 75 meter Double Extended Zepp Antenna, And I needed a 4:1 Balun So I decided to Homebrew the Balun also. Here is how I did it!
  [ Hits: 87326 | Votes: 101 | Rating: 6.27 ]

• An improved 40-80 double extended zepp - Article originally published in ARRL compendium by N6LF revisits the classic double extended Zepp to improve pattern and SWR bandwidth. The DEZepp is essentially two end-fed collinear dipoles.
  [ Hits: 18766 | Votes: 10 | Rating: 6.53 ]

• WARC 24 18 - 3 element Yagi Antenna - An old project by I1VCF for a 3 element yagi antenna originally designed for 10/15/20 and extended to 24 and 18 Mhz in Italian
  [ Hits: 2062 | Votes: 2 | Rating: 2 ]

• Patch antenna for APT - The patch, or microstrip, antenna has become a common workhorse for the microwave spectrum from about 1 GHz to tens of GHz. This type of antenna consists of two conducting layers separated by a dielectric to form an extended capacitor by WlHDX
  [ Hits: 1234 | Votes: 1 | Rating: 10 ]

• A 2.4 Ghz High gain antenna  ^{updated  pop} - Here is how to build a high gain antenna for 2.4 gHz wireless networks. Several hams are experimenting with these devices in an effort to build a network. It is sometimes referred to as Hinternet or HSMM.
  [ Hits: 61434 | Votes: 91 | Rating: 5.53 ]
• Selecting a WiFi antenna - What is the best WiFi antenna for me? Looking for a range extender antenna for your WiFi system. This article will help in choosing the correct antenna for your system
  [ Hits: 5635 | Votes: 3 | Rating: 7.33 ]

• DF9CY - ZX15/4 extended 10/4 - A 4 element addition for 10m to an existing 4 element yagi (ZX antennas)
  [ Hits: 1258 | Votes: 1 | Rating: 9 ]

• The Potomac Valley Radio Club - A world-class amateur radio contesting club, is represented by two chapters in North Carolina and extends as far north as Pennsylvania and Delaware.
  [ Hits: 378 | Votes: 1 | Rating: 10 ]

• Millenium QSYer - The Universal QSYer KeyPad works with both ICOM and selected Yaesu radios, extends these capabilities to owners of the Yaesu FT-817, FT-897, FT857, and FT-100. Additiona features for Icom Radios
  [ Hits: 1024 | Votes: 2 | Rating: 5.5 ]

• Cantenna Wireless Booster Antenna - Extend the range of wireless network or connect to other wireless networks in neighborhood with your own wifi antenna.
  [ Hits: 1005 | Votes: 1 | Rating: 10 ]

• VLF-LF And the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise. A Loop Aerial is described suitable for use on the LF and VLF bands together with a circuit of an interface loop tuner and preamplifier. The discussion extends to the problems of amplifier noise and the advantages of tuning the loop.
  [ Hits: 3424 | Votes: 5 | Rating: 5.4 ]

• Icom IC-706 extended rx mod - Icom IC-706 Extended receing mod From OH6LGM
  [ Hits: 2390 | Votes: 2 | Rating: 6.5 ]

• W4ZT Modifications for the Kenwood TH-F6A - Extended transmit for TH-F6A and other mods
  [ Hits: 2735 | Votes: 8 | Rating: 7.87 ]

• IC-2720H Extended TX/RX Mod - IC-2720H it will receive fine on 220MHz amateur band, but will NOT transmit there
  [ Hits: 2306 | Votes: 8 | Rating: 7.87 ]

• EasyGram - This Windows MTHELL QRSS NDB and DFCW program extends possibilities of well-known Spectrogram with some new useful features. It enables to define the scrolling area to any size, it can save screen shots in defined time periods , it enables to browse the saved pictures easily by OK1FIG
  [ Hits: 1234 | Votes: 1 | Rating: 1 ]

• DigiPan  ^pop - DigiPan provides a panoramic display of the frequency spectrum in the form of an active dial scale extending the full width of the computer screen. DigiPan is the result of a joint effort between myself and Nick Fedoseev, UT2UZ, the author of MIXW32, and is intended to make PSK31 operation easier and more enjoyable for everyone.
  [ Hits: 34123 | Votes: 87 | Rating: 6.98 ]

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