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• RF Transmission Line Loss Calculator
  
  This calculator computes the matched line loss for a transmission line using a model calibrated ...
  [ Hits: 2508 | Votes: 18 | Rating: 3.94 ]

• Guanella 1:1 VHF choke balun
  
  A model of a Guanella 1:1 VHF choke balun using a FT140-61 core
  [ Hits: 3621 | Votes: 9 | Rating: 3.11 ]

• Coaxial Transmitting Chokes
  
  Understanding Common Mode and Differential Mode Currents on Transmission Lines by K9YC
  [ Hits: 1102 | Votes: 0 | Rating: 0 ]

• A model of the W2DU 1:1 choke balun
  
  Notes on making the W2DU choke balun by placing several ferrite sleeves around a coaxial ...
  [ Hits: 9718 | Votes: 7 | Rating: 2.29 ]

• D-Star presentation and sounds
  
  A powerpoint presentation of the D STAR operating mode by K7VE includes d star sound ...
  [ Hits: 2175 | Votes: 5 | Rating: 2.4 ]

• YouTube - What the HELL?
  
  Hellschreiber is an interesting ham radio mode developed back in the 20s It is a ...
  [ Hits: 1414 | Votes: 3 | Rating: 7 ]

• DStar- is anybody else worried about this?
  
  D Star is being promoted as a new digital voice transmission mode For the second ...
  [ Hits: 410 | Votes: 0 | Rating: 0 ]

• W8DIG Central Ohio Digital Interconnect Group
  
  Group of dedicated amateur radio enthusiasts who want to further digital modes of communication in ...
  [ Hits: 467 | Votes: 1 | Rating: 10 ]

• An Introduction to Hellschreiber
  
  Feld hell club promoting the use of all hellschreiber modes on the amateur radio bands ...
  [ Hits: 622 | Votes: 0 | Rating: 0 ]

• W1TAG WD2XES WE2XGR/3
  
  Experimental Stations Run by W1TAG WD2XES has been used to study LF antenna design propagation ...
  [ Hits: 392 | Votes: 2 | Rating: 10 ]
• Low Frequency Transmission Modes
  
  Article by W1TAG on operating modes used on low banding The 2200 meter band 135 ...
  [ Hits: 438 | Votes: 0 | Rating: 0 ]
• Keyboard Modes for 600 Meters
  
  Evaluation of various operating modes on 600 meters
  [ Hits: 791 | Votes: 0 | Rating: 0 ]

• An Introduction to 24 GHz
  
  Article provides a guide on how to use 24 GHz band and what to expect ...
  [ Hits: 529 | Votes: 1 | Rating: 8 ]

• Keplerian Elements
  
  Keplerian elements are the inputs to a standard mathematical model of spacecraft orbits.
  [ Hits: 285 | Votes: 0 | Rating: 0 ]

• cocoaNEC
  
  cocoaNEC 2 0 is an opensource Mac OS X application intended primarily for the design ...
  [ Hits: 1611 | Votes: 3 | Rating: 10 ]

• MultiDem
  
  USB LSB AM Modem Modulator Demodulator for SdR and DSB direct conversion transceivers by F6CTE ...
  [ Hits: 4213 | Votes: 2 | Rating: 6.5 ]

• BeamFinder
  
  BeamFinder is a software tool designed to conduct analyses for radio amateurs interested in radio ...
  [ Hits: 2455 | Votes: 1 | Rating: 10 ]

• Spectrum Analyzer Real-time FFT - Oleg Ya. Shmelyoff
  
  Eight channel Audio Spectrum Analyzer is a set of Real Time Multi Channel Gauges for ...
  [ Hits: 11316 | Votes: 9 | Rating: 7.77 ]

• 5th order High Pass VHF Filter
  
  Sometimes many VHF UHF modern transceivers have problems with BROADCAST Interference and CROSS modulation from ...
  [ Hits: 1211 | Votes: 8 | Rating: 6.12 ]

• Sound Card Interface by VK6YSF - Peter
  
  Presented here is a transceiver to computer sound card interface complete with automated transmit key ...
  [ Hits: 3190 | Votes: 2 | Rating: 8.5 ]

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