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• 6 Meter Quad Turnstile Antenna
  
  A quad turnstile consists of two cubical quad loops oriented in a diamond configuration and ...
  By high on solder - Votes: 1 | Rating: 10

• 80 Meter Shortened Ground Plain Antenna
  
  This antenna is a vertical loop antenna mounted on a 8 meters high grounded mast ...
  By DL2KQ - Votes: 1 | Rating: 5

• PA0RDT Active Antenna
  
  Active antennas can be very useful in particular they can help reduce local electrical noise ...
  By G4AON

• A Reversible Beverage at ZL3IX
  
  How do two wire reversible direction Beverages work an excellent document that explains fundamentals of ...
  By ZL3IX

• VHF-UHF Long Boom Very High Performance Antenna Designs
  
  Experimental Long Boom Antennas CP LPDA multiband with several NEC Files for 50MHz 144MHz 222 ...
  By W8IO - Votes: 1 | Rating: 10

• Lazy H Array Antenna for 40 meter
  
  Make them simple then Make them work The LAZY H antenna is a general type ...
  By NA4L - Votes: 3 | Rating: 5.33

• World Grid Square Map PDF
  
  This free PDF file contains two Worldwide grid square maps The first map displays the ...
  By DXZone - Votes: 14 | Rating: 7.15

• High Altitude Ballooning, From The Ground Up (and back again)
  
  High Altitude Ballooning makes for a challenging project that sometimes turns into an engrossing hobby ...
  By dave akerman - Votes: 1 | Rating: 10

• NanoVNA
  
  The NanoVNA is a very compact handheld Vector Network Analyzer The NanoVNA is tiny and ...
  By NanoVNA - Votes: 1 | Rating: 1

• TS-590S audio noise
  
  With high impedance earphones plugged into the audio jack on the Kenwood TS 590S or ...
  By DK5TX - Votes: 1 | Rating: 9

• 2.3GHz to 432MHz RX converter for FT-817
  
  A very small receiver converter that can be plugged to the backside of the battery ...
  By DL5NEG - Votes: 3 | Rating: 1.67

• Strictly Ham
  
  Strictly Ham has a large retail presence in Australia and welcomes inquiries from New Zealand ...
  By Strictly Ham - Votes: 10 | Rating: 4.1

• Wuxi Venus Information Technology
  
  Wuxi Venus Information Technology is an amateur radio devices dealer in China source for high ...
  By Wuxi Venus

• Royal Communications International, Inc.
  
  Since 1988 Royal Communications International has been supplying communications equipment designed for the military professional ...
  By Royal Com

• BridgeCom Systems Inc
  
  Our mission is to provide our customers with a communication solution that fits a need ...
  By BridgeCom

• One-turn loop inductance Online Calculator
  
  The high frequency inductance of single turn loops of various shapes made of round wire ...
  By in3otd - Votes: 1 | Rating: 10

• JSatTrak - Satellite tracking program
  
  JSatTrak is a Satellite tracking program written in Java It allows you to predict the ...
  By Shawn Gano - Votes: 1 | Rating: 10

• GPS2Time
  
  A means of sync ing your computer clock using a GPS Receiver GPS2Time is another ...
  By VK4ADC - Votes: 4 | Rating: 10

• Home Made Artificial Ground Tuner
  
  Home made Artificial Ground This article contains a schematics of a custom artificial ground device ...
  By PA0Q

• Homebrew a High Performance SSB RTX for 14 MHz
  
  This article describes the construction of a high performance transmitter and receiver for SSB voice ...
  By DK7IH - Votes: 5 | Rating: 7.8

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