Author: John AE7YH

  • Fast Solar Wind Bookends an Earth-Directed Graze

    Space Weather News 12.01.2021 This week we have a partly Earth-directed solar storm sandwiched between two pockets of fast solar wind! The storm on its way will graze us to the south by December 3rd. NASA and NOAA prediction models disagree as to exactly when, but we can expect impact to be sometime between mid-day…

  • DX Envy?

    Imagine the best DXpedition you could imagine on Earth. You get tobe with an elite group of radio amateurs, go on a long journey toget to a rare location on the earth, just to make as many contactsas you can. Now imagine a remote location and speed. Imagine DXing at over12,000 miles per hour! Just…

  • Replacing Arecibo? [with something Far Out!]

    Alas, the Arecibo Radio Telescope [http://www.naic.edu/ao/ ] inPuerto Rico is no longer in operation due to its collapse in December 2020.The 305-meter telescope was in service for 57 years and withstoodhurricanes, earthquakes, and tropical storms. Engineers determined that all three of the telescope’s supporttowers broke off, sending the 900-ton instrument falling onto thedish below. Introducing…

  • Flying COWs?

    Flying COWs?

    During Hurricane Ida, AT&T deployed COWs, but not the type of flying bovines you could imagine. These COWs are known as Cell-on-Wings. The tethered unlimited power drone provides cellular LTE coverage for an area of up to 40 square miles and a further data and voice connection via satellite uplink to AT&T’s network to connect…

  • ARRL Announces Free RF Exposure Calculator

    The American Radio Relay League [ ARRL.org ] has released a free to use Radio Frequency [ RF ] Calculator for all to use to calculate transmitting power exposure limits for antennas. Some radio amateurs may need to report depending on the operating power of their station. As Ham Radio operators we all may enjoy…

  • KM4BUN Audrey: Young Ham presenting on APRS Balloons and PicoSats

    Audrey Mcelroy, KM4BUN shared a great tutorial on APRS High Altitude Balloons combined with APRS PicoSats. Audrey is an Extra class ham who got involved in Amateur Radio when she was six years old with the help of her parents Tom McElroy W4SDR, and mother Jan McElroy K4PRM.