antenna history

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antenna history

19 links

Antennas : 40M : 40 meter Magnetic Loop Antennas

  • Mag Loop for 40 m - A page about a Magnetic loop antenna project for the 40 meters band, includes nice pictures and history of construction
    [ Hits: 2064 | Votes: 9 | Rating: 6.56 ]
Antennas : 70cm
  • 432 Mhz 8 Element Quagi Antenna - How to build a 432 Mhz Quagi, using a wood-made boom, and gives a 13 DBI Gain
    [ Hits: 12664 | Votes: 37 | Rating: 8.19 ]
Antennas : Bazooka
  • Antenne double-bazooka - A page in french dedicated to the double bazooka antenna, with a short history of this antenna model and main characteristics including a comparison versus the dipole antenna and formulas to determine elements size.
    [ Hits: 473 | Votes: 1 | Rating: 5.00 ]
Antennas : Four Square
  • 40 Meter 4 Square - A four square antenna for the 40 meters band with pictures, project history and antenna design
    [ Hits: 225 | Votes: 0 | Rating: 0.00 ]
Antennas : J-Pole
  • J Pole antennas variations on a theme - Twin lead jpole, ladder line jpole, copper cactus j pole, material list to build your own jpole antenna and a brief history of Jpole antennas.
    [ Hits: 4074 | Votes: 2 | Rating: 7.50 ]
  • J-pole double header - An article on J-pole antennas and the zepplin variation, history and construction tips by Richard Morrow, K5CNF
    [ Hits: 1885 | Votes: 3 | Rating: 5.00 ]
Antennas : Morgain
  • Morgain Antenna, the old lady - An introduction to history of Morgain Antenna, since the early origins in Virginia, to the current home made projects and design available on the net. Article in Italian
    [ Hits: 371 | Votes: 0 | Rating: 0.00 ]
Antennas : Quad Antennas : Theory Antennas : Theory : Antenna Gain
  • The gain of aerials: the myths explained - In the long history of beam aerials there has persistently existed the claim that certain types of aerials perform better than yagis.
    [ Hits: 1470 | Votes: 1 | Rating: 10.00 ]
Antennas : Towers
  • G5RV Antenna by W8AOK - The Walnut Tower antenna project
    [ Hits: 11631 | Votes: 8 | Rating: 8.12 ]
  • HS0ZEE Antenna Tower Installation - Pictures and history of HS0ZEE 37 meters antenna tower installation with a cubical quad on the top of this tall radio mast.
    [ Hits: 2350 | Votes: 6 | Rating: 8.67 ]
Antennas : Windom
  • Off-Center Feed - The Windom Antenna - The Windom antenna was widely used in the 1930s and is named after the amateur that wrote a comprehensive article about it
    [ Hits: 3375 | Votes: 1 | Rating: 2.00 ]
Antennas : Yagi
  • The Yagi-Uda Antenna - An interesting presentation on history and characteristics of Yagi-UDA antennas
    [ Hits: 340 | Votes: 0 | Rating: 0.00 ]
Ham Radio : Clubs : North America : USA : Washington
  • W7AIA, Clark County Amateur Radio Club - Clark county amateur radio club serving sw washington for 75 years! come find out how our local ham club offers programs that cover everything from the history of morse code and call signs to ham radio antennas
    [ Hits: 392 | Votes: 2 | Rating: 9.50 ]
Operating Modes : Ham Radio Balloons
  • Radiosonde : how to listen to them - Frequencies and location of every meteo radiosonde launching centres in Europe. Equipments, antennas, history, SondeMonitor and BalloonTrack tutorials
    [ Hits: 548 | Votes: 3 | Rating: 6.67 ]
Radio Equipment : HF Transceivers : Icom IC-746
  • ICOM 746 Temperature Measurements - The ICOM 746-Pro has acquired a history of NEC 1678G (IC-151) MMIC and driver transistor 2SK2975 failures. The failure of IC-151 appears to be a combination of ESD damage from electrostatic charge on the antenna entering IC-151, and perhaps thermal heat.
    [ Hits: 1994 | Votes: 0 | Rating: 0.00 ]
Radio Equipment : HF Vertical Antenna : Solarcon A-99
  • The A99 - a best seller - Solarcon Antron A-99 antenna details and history
    [ Hits: 742 | Votes: 0 | Rating: 0.00 ]
Shopping and Services : Regional : Japan
  • Lambda Antenna Ltd - Lambda Antenna has 30 years of history in high frequency antenna industry, based in Japan, produce amateur radio antennas for VHF UHF and microwave bands.
    [ Hits: 146 | Votes: 0 | Rating: 0.00 ]
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