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• NVI 40 Meter Antenna Modeling
  
  The idea of using a low mount dipole enhanced with reflector wires directly beneath the ...
  [ Hits: 3009 | Votes: 0 | Rating: 0 ]

• Trapped dipole for 80 and 40 m
  
  This article explores a theoretical model for the losses of an 80m 40m trapped inverted ...
  [ Hits: 2731 | Votes: 0 | Rating: 0 ]

• The Guanella 1:4 balun
  
  A cost effective current mode 1 4 balun can be constructed from two lengths of ...
  [ Hits: 3637 | Votes: 1 | Rating: 10 ]

• Folding the Dipole
  
  The half wave dipole antenna is a simple and practical antenna model that consists of ...
  [ Hits: 2379 | Votes: 4 | Rating: 7.5 ]

• Axial-Mode Helical Antennas - W4RNL
  
  Notes on Axial Mode Helical Antennas in Amateur Service Helix Basics Modeling Issues and Short ...
  [ Hits: 1651 | Votes: 0 | Rating: 0 ]
• The normal-mode helix antenna
  
  A helix will work in the normal mode when the diameter and pitch of the ...
  [ Hits: 3055 | Votes: 7 | Rating: 5 ]

• Coax Traps from a Modeling Perspective - NC4FB
  
  About Coax Traps, NC4FB examine the operation of coax traps through modeling.
  [ Hits: 678 | Votes: 1 | Rating: 5 ]

• TARA's all Seasons Contests
  
  Digital modes contest rules by TARA Offers the All Seasons contest Tournament A new concept ...
  [ Hits: 364 | Votes: 0 | Rating: 0 ]

• European PSK Club
  
  The European PSK Club or EPC for short is an informal club of amateur radio ...
  [ Hits: 1089 | Votes: 1 | Rating: 10 ]

• The Ham Band - Lissa Ladefoged
  
  A music video describing the building of a modern contest station it teaches you morse ...
  [ Hits: 435 | Votes: 0 | Rating: 0 ]

• Micro908 Kit
  
  A re usable control computing platform for antenna measurement PSK31 digital modems audio filtering signal ...
  [ Hits: 1570 | Votes: 1 | Rating: 10 ]

• Digital Modes used in Ham Radio
  
  Article with waterfall pictures and samples of several digital modes like psk31 sstv packet pactor ...
  [ Hits: 1129 | Votes: 3 | Rating: 7.67 ]

• Sights and Sounds of Digital Signals
  
  Preview the waterfall signature of various digital signals and listen to the sound of the ...
  [ Hits: 1047 | Votes: 3 | Rating: 6.67 ]

• Olivia, the Magic Digital Mode
  
  Olivia MFSK digital communications are becoming popular in amateur radio because Olivia is one of ...
  [ Hits: 1932 | Votes: 8 | Rating: 8.38 ]

• G4ILO Stealth Amateur Radio
  
  If you are a ham and live in a modern urban or suburban development putting ...
  [ Hits: 1563 | Votes: 2 | Rating: 10 ]

• YAESU FL-2100Z Amplifier Repairs
  
  The FL 2100Z amplifier referenced in the following images is the 6 Band model covering ...
  [ Hits: 3480 | Votes: 8 | Rating: 7.25 ]

• Yagi-logper - Bohumir Jelinek
  
  Yagi logper is a linux GPL program to model a Yagi or Log periodic antennas ...
  [ Hits: 1688 | Votes: 3 | Rating: 7 ]

• cocoaModem
  
  CocoaModem is an opensource MacOSX application which implements modems modulator demodulators for RTTY PSK MFSK ...
  [ Hits: 3185 | Votes: 6 | Rating: 8.33 ]

• Fldigi - W1HKJ
  
  Fldigi Freeware Digital multi mode program for Linux Free BSD MacOS X and MS Windows ...
  [ Hits: 17913 | Votes: 24 | Rating: 7.49 ]

• A LF power amplifier
  
  A Low Frequency LF RF Power Amplifier by VK5BR it operates in a linear mode ...
  [ Hits: 3307 | Votes: 2 | Rating: 1.5 ]

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