W6IWI Resources

• Antennas
  • Vertical Antennas - Great discussion.
  • Vertical Antennas, Uli Weiss, DJ2YAm. Extensive discussion of vertical antennas including ground losses.
• Components
  • Data Professionals - Heathkit parts and manuals
  • Hayseed Hamfest - Replacement metal can electrolytic capacitors.
  • Just Radios - Source for components for vacuum tube radios (high voltage capacitors, etc.).
• Modulation
  • FM Simplified, Milton S. Kiver, 1960. Extensive descrition of freuency modulation including methods of generation and demodulation.
  • Understanding Modern Digital Modulation Techniques - Electronic Design magazine, 2012. Good introduction to digital modulation techniques
• Morse Code
  • Morlse - A CW game
  • Morse Code by P. Lutus - Nice page giving some theory and history of code. Has a nice text to CW converter.
  • Precision CW - Fistcheck checks the timing of your bug or straight key.
  • eBook to CW - Converts text files (like books) to CW audio. Can vary speed, introduce noise, etc. Great for long drives!
  • ARRL Code Practice Files
  • Long Island CW Club offers CW classes
  • Straight Key Century Club - CW, straight key, and bug enthusiasts
• RF Exposure
  • ARRL RF Exposure Calculator - Calculates safe public and occupational distances based on power to antenna, frequency, modulation, duty cycle, and antenna gain.
  • FCC 19-126 - RESOLUTION OF NOTICE OF INQUIRY, SECOND REPORT AND ORDER, NOTICE OF PROPOSED RULEMAKING, AND MEMORANDUM OPINION AND ORDER
  • OET 65 - Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields - being revised in 2021
  • OET 65 Supplement B - Additional Information for Amateur Radio Stations - being revised in 2021
  • RF Safety chapter from Amateur Radio Handbook
  • RF Exposure and You, ARRL, 2003
  • ARRL Worksheet A - Categorical Exemption for Station Evaluation
  • Changes to RF Exposure Rules 2021 - Video by Gregory P. Lapin, N9GL, chair of ARRL Safety Committee
• Software
  • EZNEC antenna modeling software. FREE!
  • Visual Analyzer - Soundcard based scope, sperctrum analyzer, audio generator, frequency counter, and more. FREE!
• Software Defined Radio
  • Software-Defined Radios by P. Lutus - Nice page on theory of SDRs, hardware, and software.
  • PLSDR - A Python-based SDR by P. Lutus
  • WebSdr - Software defined radios around the world available on the web.
  • KiwiSdr - Low cost web enabled SDR.
• Remote Control Software
  • Win4Icom - Remote control of several Icom transceivers
• Others
  • W8JI - Vast accumulation of itneresting resources.