Everand Logo

Welcome to Everand!

  • CQ Amateur Radio

    MATH’S NOTES

    Oct 01, 2020 3 minutes
    BY IRWIN MATH,* WA2NDM

    rom time to time, we have tried to present various thoughts, ideas, and even some circuitry regarding possible new areas for experimentation by technically inclined amateurs. One of our favorites has been optical or THz transmission. While we have received numerous emails with various comments, we have not personally heard from actual experimenters in this area to any great degree and we feel that this is a mistake. As I have said many times in the past, early experimenters in radio, beginning with Loomis, Hertz, Branly, Tesla, Marconi, etc., all started

    You’re reading a preview, subscribe to read more.

    More from CQ Amateur Radio

    CQ Amateur Radio1 min read
    Looking Ahead in CQ
    Here are some of the articles we’re working on for upcoming issues of CQ: • Results: 2023 CQ WPX CW Contest • US Medalists at 2023 World ARDF Championship • Rules: 2024 CQ DX Marathon; 2024 CQWW 160-Meter Contest • Sweepstakes Success Tips • A “Sherl
    CQ Amateur Radio4 min read
    Analog Adventures
    When I was attending El Camino College, all the engineering majors were required to take a one-semester class in slide rule. The spring semester of 1972 was the first year they allowed calculators in math classes, and our slide rule instructor, whose
    CQ Amateur Radio1 min read
    VHF Propagation
    New from CQ– the VHF Propagation Handbook–Second Edition, written by three of Amateur Radio’s wellknown authors: WB2AMU, WB6NOA and K7JA! Just about all radio amateurs in the United States, as well as those in many other areas of the world, have acce

    Related Books & Audiobooks