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• 40m Wire Antennas Comparison - PH0NO
  
  On the field comparison among C Pole antenna an EFHW vertical antenna and an Inverter ...
  [ Hits: 172 | Votes: 1 | Rating: 3 ]

• Some secrets of Common Mode Chokes revealed - pa0nhc
  
  This is a small collection of K9YC info and my experiences Problems by feed lines ...
  [ Hits: 175 | Votes: 1 | Rating: 10 ]

• Cloverleaf Antenna - Oscarliang
  
  Cloverleaf antenna is a circular polarized antenna which is way better than the cheap dipole ...
  [ Hits: 64 | Votes: 0 | Rating: 0 ]

• Doublet antenna as vertical T - so8oo
  
  A transmitting antenna 2x15m about 100 foot doublet antenna fed by a ladder line of ...
  [ Hits: 118 | Votes: 0 | Rating: 0 ]

• Ribbit digital text messaging mode for HF/VHF/UHF - RibbitRadio
  
  Ribbit is a novel digital text messaging mode for VHF UHF communications for recreational and ...
  [ Hits: 134 | Votes: 1 | Rating: 10 ]

• QO-100 with LimeSDR - LimeSDR
  
  QO 100 Communications with the LimeSDR Family LimeSDR can transmit in the expected uplink frequency ...
  [ Hits: 78 | Votes: 0 | Rating: 0 ]

• Michigan Mighty Mite – QRP CW Transmitter - DX Explorer
  
  Michigan Mighty Mite is a QRPP CW transmitter that is easy to built with a ...
  [ Hits: 141 | Votes: 0 | Rating: 0 ]

• Yaesu FT-817 battery pack - qsoshack
  
  Go portable with an external battery pack The built in batteries will not last thirty ...
  [ Hits: 97 | Votes: 0 | Rating: 0 ]

• JJY - NICT
  
  JJY is a time signal transmitter operated by the National Institute of Information and Communications ...
  [ Hits: 31 | Votes: 0 | Rating: 0 ]
• CHU - NRC
  
  CHU is a time signal transmitter operated by the National Research Council in Canada It ...
  [ Hits: 42 | Votes: 0 | Rating: 0 ]

• Quisk - Quisk
  
  Quisk is a Software Defined Radio SDR and is the software that controls my receiver ...
  [ Hits: 70 | Votes: 0 | Rating: 0 ]

• Arduino QRP Transceiver: DIY Success on HF Bands - M0XPD
  
  This article introduces an Arduino based QRP CW Transceiver designed for lower HF bands The ...
  [ Hits: 115 | Votes: 1 | Rating: 1 ]

• The CW Flea: Modern Morse Transmitter with Arduino - KB9RLW
  
  Reviving the spirit of early ham radio experimentation the CW Flea is a contemporary Morse ...
  [ Hits: 92 | Votes: 2 | Rating: 3.5 ]

• A 2 meter band-pass cavity using surplus Heliax - ka7oei
  
  Cavity is often required at a busy site to not only prevent its receiver from ...
  [ Hits: 131 | Votes: 2 | Rating: 3 ]

• APRS LoRa Weather Station - TK5EP
  
  The weather station described here uses a TTGO v3 1 6 2 module and various ...
  [ Hits: 109 | Votes: 0 | Rating: 0 ]
• LoRa in Amateur Radio - USKA
  
  About LoRa wireless communication technology designed to transmit data over long distances LoRa provides a ...
  [ Hits: 102 | Votes: 0 | Rating: 0 ]

• LoRa-APRS-iGate - iot4pi
  
  he LoRa APRS iGate was developed in cooperation with the Austrian HAM Radio Association With ...
  [ Hits: 79 | Votes: 0 | Rating: 0 ]
• Raspberry Pi Pirate Radio - Gus
  
  In this tutorial the author shows the basics of how to set up a Raspberry ...
  [ Hits: 73 | Votes: 0 | Rating: 0 ]

• Arduino Repeater Controller - AA5OY
  
  This blog article introduces an updated repeater controller project utilizing the Arduino UNO It includes ...
  [ Hits: 96 | Votes: 0 | Rating: 0 ]

• Simple 2-tone generator - DK7IH
  
  A simple 2 tone generator for testing the linearity of SSB transmitters This device is ...
  [ Hits: 111 | Votes: 0 | Rating: 0 ]

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