log antenna

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log antenna

334 links - and 2 categories

Antennas : 40M : 40 meter Yagi Antennas
  • 3 Element Yagi for 40 Meters - An homebrew project for a 3 element coil-loaded Yagi beam antenna for 40 Meter band
    [ Hits: 275 | Votes: 0 | Rating: 0.00 ]
Antennas : Beverage Antennas : Feed Lines : Choke
  • Chocking the End-Fed Antenna - Stop common-mode current when transmitting with an end-fed antenna. Unbalanced antennas are very prone to currents on the outside of the coax.
    [ Hits: 415 | Votes: 1 | Rating: 8.00 ]
Antennas : J-Pole
  • VHF UHF Jpole - Pictures of a home made J Pole antenna for 70cm and 2 meters band
    [ Hits: 1018 | Votes: 7 | Rating: 6.00 ]
Antennas : Log Periodic
  • Log Periodic Antenna - An article explaining features and characteristics of amateur radio log periodic antennas
    [ Hits: 222 | Votes: 1 | Rating: 8.00 ]
  • Log periodic 4 elements - A homebrew four elements log periodic antenna for HF bands
    [ Hits: 406 | Votes: 1 | Rating: 10.00 ]
Antennas : Loop
  • Horizontal Loop Antenna Experiments  new - The HF horizontal loop has been around for many years now. This article includes a YouTube video and discusses the reasons for looking at this antenna, its design, and its installation. There are some on-air comparisons against three regular double bazooka (coax) dipoles and the Par SWL End-Fed antenna.
    [ Hits: 267 | Votes: 1 | Rating: 9.00 ]
Antennas : Moxon
  • 2m Band Moxon - Moxon is a rectangle shaped directional antenna, originally designed by Les Moxon G6XN. There are couple of advantages of using this antenna. It is small in size, Easy to mast, Balanced to 50 Ohms, Near 1:1 SWR, Excellent Front to Back (F/B) ratio, Large bandwidth
    [ Hits: 237 | Votes: 0 | Rating: 0.00 ]
Antennas : Stealth
  • 40 m short vertical - A shortened and invisible wire antenna for 7 MHz
    [ Hits: 3480 | Votes: 8 | Rating: 8.25 ]
Ham Radio : Blogs : Oceania
  • VK4ZXX Ham Radio Projects Brisbane - Ham radio, amateur radio, satellite communication, radio, radios,antenna, antenna design, yagi, cross yagi, power divider, splitter, Brisbane.
    [ Hits: 91 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Antenna Switches
  • NMF Technology - Amateur radio antenna accesories manufacturer, produces four square antenna combiner, antenna controllers, antenna stack match and antenna switches
    [ Hits: 91 | Votes: 2 | Rating: 10.00 ]
Radio Equipment : HF Transceivers : Icom IC-7300
  • ICOM IC-7300 Review - The excellent ICOM IC-7300 is the FIRST stand alone Amateur Radio Transceiver that uses true direct sampling SDR technology PLUS also includes an internal antenna tuner and 100 watts RF output. Super fast Real Time spectrum display, no lagging doggy ones here
    [ Hits: 242 | Votes: 4 | Rating: 9.75 ]
Technical Reference : Arduino
  • Arduino Antenna Rotator Controller - This is an attempt to build an Antenna rotator controller using Arduino Mega 2560 with a nice user interface showing the actual position of the antenna.
    [ Hits: 484 | Votes: 1 | Rating: 10.00 ]
Technical Reference : RF Safety
  • Magnetic Loop RF Safety - Notes on the intensity of RF Field calculated on magnetic loop antennas. The magnetic field intensity of a mag loop is considerably higher than the E field probably due to the inductive portion of the resonant circuit creating the radiation (magnetic) in the near field
    [ Hits: 479 | Votes: 1 | Rating: 10.00 ]
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