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• Speaker Wire Delta Loop Antenna for 20M - WB3GCK
  
  The antenna I built was inspired by a portable delta loop designed by Doug DeMaw ...
  [ Hits: 128 | Votes: 0 | Rating: 0 ]

• Vertical bazooka antenna for the 40m - ON8IM
  
  A quarter wave vertical omni directional antenna for 7 MHz Formulas for dimensions in feet ...
  [ Hits: 135 | Votes: 7 | Rating: 6.85 ]

• Loaded Quarter Wave Antenna Inductance Calculator - M0UKD
  
  Here is a formula and calculator for creating a loaded shortened quarter wave vertical or ...
  [ Hits: 163 | Votes: 0 | Rating: 0 ]

• Homebrew an OCF Off-Center Fed Dipole Antenna - W5ODJ
  
  This type of antenna is a popular antenna design as the performance is very good ...
  [ Hits: 201 | Votes: 3 | Rating: 6.67 ]

• Build your own Windom Antenna - N7RXE
  
  Building a Windom HF Antenna A PDF file presentation about homebrewing a windom antenna for ...
  [ Hits: 776 | Votes: 2 | Rating: 10 ]

• How to calculate Bearing and great-circle distance between two points - Chris Veness
  
  Calculate distance bearing and more between Latitude Longitude points This page presents a variety of ...
  [ Hits: 198 | Votes: 3 | Rating: 3.33 ]

• Bandpass Filter Calculator - learningaboutelectronics
  
  Passive Bandpass Filter online calculator and filter formulas Active Inverting Op Amp Bandpass Filters Active ...
  [ Hits: 171 | Votes: 3 | Rating: 5.33 ]

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