RadCom April 2013, Vol. 89, No. 4

| March 22, 2013

Cover of April 2013 RadCom showing Elecraft KX3 radio featured in review

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Contents RadCom April 2013

News and Reports

  • 6 RSGB Matters
    Including the President’s final thoughts on leaving office, the Calling Notice for the 2013 AGM, Member Elected and Nominated Directors, the new President, QSL Matters, Volunteer Vacancies, G2DPA SK, New Members and Congratulations
  • 11 Pat Hawker MBE, G3VA, Silent Key
    The RSGB salutes the passing of a legend of amateur radio


  • 35 Elecraft KX3
    Peter Hart, G3SJX is very impressed by this highly portable HF/6m all mode transceiver
  • 75 Book Review
    RSGB Antenna File, Radios to Go and Flying Saucer Technology examined by Giles Read, G1MFG

Technical Features

  • 18 Homebrew
    Eamon Skelton, EI9GQ designs an IF amplifier based on the TL026 plus a basic RF front end
  • 26 The HAK Choked Dipole
    Peter Gant, G8HAK, experiments with choked end fed dipoles from 2 to 20m with encouraging results
  • 30 Data
    Datamodes on 475kHz, new WSJT modes and hints on controlling your sound card from Andy Talbot, G4JNT
  • 42 EMC
    Dr David Lauder, G0SNO looks at a wide range of EMC issues including LED lighting, possible conflicts between mobile broadband and digital TV plus QRM from a battery charger and railways
  • 40 Design Notes
    Andy Talbot, G4JNT finds that the venerable SL6270 VOGAD has been revived and uses it in a pulse with modulator
  • 74 Start Here
    Continuing our look at the history of radio by John Welsh, G0NVZ


  • 87 Advertisers index
  • 32 Antennas, Peter Dodd, G3LDO
  • 59 GHz, Dr John Worsnop, G4BAO
  • 54 HF, Don Field, G3XTT
  • 45 IOTA , Martin Atherton, G3ZAY
  • 48 LF, Dave Pick, G3YXM
  • 95 Propagation, Gwyn Williams, G4KFH
  • 16 QRP, Rev George Dobbs, G3RJV
  • 92 Members’ Ads, Rallies & Events, Silent Keys and
    Special Event stations
  • 77 Sport Radio, Steve White, G3ZVW
  • 96 The Last Word
  • 56 VHF/UHF, Richard Staples, G4HGI

Category: RadCom