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2024: Radio Amateur Society of Australia QTC magazine
December 13, 2024: VK5PAS, Paul, is assembling a draft history of the ANZA DX Net June 8, 2024: Coronal Mass Ejection, without geomagnetic storm 
 Full size C3 image May 12, 2024: Coronal mass ejection, strong geomagnetic storm 
 Full size C3 image May 11, 2024: NOAA SWPC,Geomagnetic Storm Watch University of Alberta,AuroraWatch October 10, 2023: Updated NOAA,Solar Cycle 25 Prediction. March 28, 2023: QSO is brief exchange of call sign,signal report, name, location and read-back. February 23, 2023: Practical Antenna Handbook, 4th ed, 2001 February 21, 2023: Library of Amateur Radio & Communications A library of materials and collections related to amateur radio. December 12, 2022: Unified sunspot-cycle theory of 17 years. April 12, 2022: Sunspot activity exceeding prediction. February 6, 2022: Extreme solar storms, radio communications. 2013 report (pdf) of the Royal Academy of Engineering. January 12, 2022: History of Radio before the broadcast era. September 18, 2021: Updated, the solar magnetic terminator event of the alternative to the 2019 Cycle 25 forecast, a minority report predicting stronger Cycle 25 (professional paper) may soon occur. Here is a September 17 Youtube of McIntosh explaining his forecast. Listen out for propagation changes. July 6, 2021: Link on the Propagation page to IARU Ethics and Operating Guide for Amateur Radio Operators June 16, 2021: QRN with geomagnetic storms (elevated A and K) is caused by geomagnetic perturbation of electric fields in conductive Earth materials that induce geoelectric currents on powerlines, data cables, pipelines and railroad tracks. Geomagnetic QRN may be ionospheric and/or local. March 18, 2021: Collection of documents WorldRadioHistory.com February 25, 2021: ITU News Magazine, the history of radio. February 15, 2021: VK4CC, Col memorialized silent keys. February 12, 2021: The Sunspot Number and Radio Flux plotted against the Cycle 25 forecast, updated monthly. December 21, 2020: Earth's wandering magnetic field is the subject of research into the Earth's core field.  Try to imagine that the Earth's magnetic field is more complicated then we can imagine... December 5, 2020: Video of 10-Year Time Lapse of the Sun and 25-Year Time Lapse of Solar Chromosphere. Thanks WA6SZE, Bill. November 18, 2020: This website is now at anzadx.net June 21, 2020: Many early-cycle flares occur at high latitude on the sun, so are less effective at earth. Watch the latest LASCO C2 and C3 images for mid-latitude, earth-directed flares. May 27, 2020: The winner of the 50th anniversary quiz is VK3QI, Peter May 20, 2020: The ANZA DX Net has been operating for 50 years. February 13, 2020: VK4LJ, John became SK. Let us carry his legacy into the future. July 2, 2019: Another, fleeting Cycle 25 spot, appeared briefly in the mid latitude of southern solar hemisphere. April 5, 2019: Solar Cycle 25 Prediction Panel expects Cycle 24-25 minimum to occur mid 2019 to mid 2020 Cycle 25 is anticipated to peak 2023-2026, with a sunspot number in the range of 95-130, well below the record range of 140-220. July 2018: RX off the side of a beam with a simple 20m magnetic loop, inductively fed with a driven loop, tuned with simple tubular capacitor. May be constructed of coax. Directional in the plane of the loop. Hang from a tree, 1 or more loop diameters above ground. June 2017: Sunspot minimum forecast for 2019-2020. January 2017: Listen to remote receivers over the internet 20 May 1970: VK3PA (VK4CPA), Percy (SK) opened the first ANZA DX Net. Background image: Sunset over the Indian Ocean From ISS |
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