A new sunspot is emerging over the sun’s southeastern limb. Provisionally numbered AR2765, it is inset in this magnetic map of the sun’s surface from NASA’s Solar Dynamics Observatory:
AR2765 is a member of new Solar Cycle 25. We know this because of its magnetic polarity. According to Hale’s Law, sunspots switch polarities from one solar cycle to the next. Southern sunspots from old Solar Cycle 24 have a -/+ polarity. This sunspot is the opposite: +/-, marking it as a member of Solar Cycle 25.
Ziteng (Andy) Wang is a PhD student at the University of Sydney. He recently discovered an unusual radio signal coming from the direction of the Milky Way’s center. The radio waves Andy discovered using the ASKAP radio telescope in Western... Read more
You asked for it, here it is: a live A/B test of the Wolf River Coil vs the Chameleon CHA-LEFS End Fed Half Wave antenna. Which will win in this Parks... Read more
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The new Youth category for the CQ World Wide DX Contest will debut October 30 – 31 with the phone weekend. The category covers contesters age 25 years... Read more
The Chameleon CHA-MPAS 2.0 just might be the best portable Ham Radio antenna that you can get today, due to its versatile configurations and compact s... Read more