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• Microstrip Patch Antenna Calculator - Nikhil Sharma
  
  This calculator calculates the length and width of a patch antenna based on the frequency ...
  [ Hits: 486 | Votes: 2 | Rating: 1 ]

• Lindenblad Antenna - AF6SA
  
  A Lindenblad Antenna for 145 MHz and 435 MHz with an integrated 50 MHz J ...
  [ Hits: 1525 | Votes: 3 | Rating: 6.67 ]

• Triband Receiving Loop for 160/80/40m - AC0C
  
  A receiving only loop antenna for low bands cover 160 to 40 meters with a ...
  [ Hits: 890 | Votes: 1 | Rating: 10 ]

• VHF Yagi from Old TV Antenna - Amateurradio.bz
  
  6m 2m 70cm Yagi Antenna Built from Old TV Antenna This turned out to be ...
  [ Hits: 732 | Votes: 2 | Rating: 10 ]

• CCECPSCO - Public Service, RACES - Charles Scott
  
  Volunteer RACES go to organization for Charlevoix Cheboygan Emmet counties Office of Emergency Management RACES ...
  [ Hits: 201 | Votes: 0 | Rating: 0 ]

• Considerate Operator's Frequency Guide - ARRL
  
  The Considerate Operator s Guide shows frequencies generally recognized for certain modes or activities all ...
  [ Hits: 1381 | Votes: 1 | Rating: 2 ]
• DARC Band Plan - DARC
  
  Kurzwellenbandplane der IARU Region 1 available in german and in english
  [ Hits: 1151 | Votes: 4 | Rating: 8 ]

• D-STAR User Guide for beginners - M0ZZM
  
  If you have just bought a new D STAR radio have read all the instruction ...
  [ Hits: 458 | Votes: 0 | Rating: 0 ]

• New England DMR - NE DMR
  
  The New England Digital Emergency Communications Network is dedicated to providing reliable amateur radio communications ...
  [ Hits: 270 | Votes: 0 | Rating: 0 ]
• NOCO DMR Group - NOCO
  
  The Northern Colorado NoCo DMR group is a group of Northern Colorado HAM radio operators ...
  [ Hits: 191 | Votes: 2 | Rating: 10 ]

• Digital Modes Need Calibrated Soundcards - hamradio.me
  
  Article on importance on correct procedure to calibrate your PC sound card for digital mode ...
  [ Hits: 314 | Votes: 0 | Rating: 0 ]

• MFJ-259B on 630 meters - KB5NJD
  
  Modifying an MFJ-259B Antenna Analyzer to operate on 630 meters
  [ Hits: 331 | Votes: 1 | Rating: 10 ]

• R-20 Signal Capture and Analysis - KE7ATE
  
  This windows software includes an easy to read display with features designed to give you ...
  [ Hits: 594 | Votes: 2 | Rating: 1 ]

• Ham Call Lookup - Windows Phone - Mike Pearce
  
  Ham Call Lookup is an windows phone app that allows you to perform amateur radio ...
  [ Hits: 204 | Votes: 0 | Rating: 0 ]

• ARDUINO Simplex Repeater Controller - ON7EQ
  
  This project hereby presented is a complete HAM radio simplex smart repeater built around a ...
  [ Hits: 1077 | Votes: 6 | Rating: 3.67 ]

• Yaesu MH-31 microphone integrated voice keyer - DH8BQA
  
  A voice keyer completely integrated into the standard Yaesu MH-31 amateur radio microphone
  [ Hits: 415 | Votes: 0 | Rating: 0 ]

• FM broadcast transmitter Raspberry Pi - MAKE
  
  This simple hack turns your Raspberry Pi into a powerful FM transmitter
  [ Hits: 2492 | Votes: 8 | Rating: 5.87 ]

• TVI filters - LA8AK
  
  Examples of absorbtive low pass filters in which the unwanted high frequency energy is separated ...
  [ Hits: 357 | Votes: 0 | Rating: 0 ]

• Sweep Generator with Marker - Cor van Rij
  
  A simple simple sweep generator circuit design where the sawtooth is generated by the PNP ...
  [ Hits: 1166 | Votes: 2 | Rating: 7.5 ]

• VNA calibration kit - IN3ODT
  
  A calibration kit useful when you need known reference impedances to properly calibrate your vector ...
  [ Hits: 302 | Votes: 0 | Rating: 0 ]

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