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• 70 MHz Big Wheel
  
  A Big Wheel antenna for 4 meters band by OE5MPL
  [ Hits: 1063 | Votes: 1 | Rating: 1 ]

• Preventing Feedline Radiation
  
  How to handle feedline radiation issues
  [ Hits: 371 | Votes: 0 | Rating: 0 ]

• Log Periodic vs Yagi Antenna
  
  Article on Yagi and Log periodic antennas by Tom, K1JJ
  [ Hits: 437 | Votes: 1 | Rating: 5 ]

• Installing Vertical HF Antenna Radials
  
  A ground radial system for the Hustler 5BTV antenna
  [ Hits: 587 | Votes: 1 | Rating: 5 ]

• SERA SC
  
  South Carolina District for the SERA
  [ Hits: 184 | Votes: 0 | Rating: 0 ]
• SERA TN
  
  Tennessee SERA District
  [ Hits: 218 | Votes: 0 | Rating: 0 ]

• 4 Meter Band Forum
  
  A web forum on 70 Mhz band
  [ Hits: 552 | Votes: 2 | Rating: 5.5 ]

• Operations not accepted for DXCC
  
  List of not accepted operations by DXCC with proper remarks at OK1RR website
  [ Hits: 527 | Votes: 0 | Rating: 0 ]

• Guide to Four Metres
  
  A complete guido to 4 Metres band for beginners
  [ Hits: 388 | Votes: 1 | Rating: 10 ]
• 70 MHz Beacons
  
  Beacons on 4 meter band
  [ Hits: 527 | Votes: 0 | Rating: 0 ]
• International 70 MHz allocation
  
  Allocation of 4 meter band worldwide
  [ Hits: 266 | Votes: 0 | Rating: 0 ]

• AM Operation Using Power SDR
  
  AM Operation Using Power SDR with Flex and Other SDR Platforms
  [ Hits: 320 | Votes: 1 | Rating: 1 ]

• Refractive Index maps for Europe - f5len
  
  Refractive Index maps forecast for Europe
  [ Hits: 516 | Votes: 5 | Rating: 6.8 ]

• Short Wave Propagation
  
  Introduction to shortwave propagation
  [ Hits: 413 | Votes: 3 | Rating: 5 ]

• Repairing Cushcraft A3S Traps
  
  Notes and details on repairing Traps on Cushcraft A3S
  [ Hits: 1178 | Votes: 3 | Rating: 5.33 ]
• Cushcraft A3S Refurbishing
  
  Refurbishing my 10 years old Cushcraft A3S triband HF Antenna
  [ Hits: 660 | Votes: 1 | Rating: 5 ]

• Award Manager by IK4ZIN
  
  Gestione Diplomi is an excel sheet with macros to manage amateeur radio awards it s ...
  [ Hits: 474 | Votes: 0 | Rating: 0 ]

• Echolink on Linux - SvxLink and Qtel
  
  How to run Echolink on Linux
  [ Hits: 1711 | Votes: 10 | Rating: 4.29 ]

• About Cavity Filters
  
  Cavity filters are tipically circuitry behind a duplexer that allow only certain frequencies to pass ...
  [ Hits: 473 | Votes: 3 | Rating: 5.33 ]

• Notes on Ground Systems
  
  A collection of frequently asked questions on ground systems
  [ Hits: 416 | Votes: 1 | Rating: 10 ]

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