POLAR CROWN CORONAL HOLE: A large hole in the sun’s atmosphere has formed around the sun’s north pole. This is called a “polar crown coronal hole,” and it is spewing solar wind into space. This image, based on data from NASA’s Solar Dynamics Observatory, shows where the sun’s magnetic field has opened up, allowing the gaseous material to escape.
Although this hole is not directly facing Earth, forecasters believe that some of the emerging solar wind could spill down and brush against our planet’s magnetic field on Feb. 4th and 5th. Minor geomagnetic storms and Arctic auroras are possible when the solar wind arrives later this weekend.
The SARK-110 is a completely new design concept for an Antenna Analyzer. This is a truly pocket size device, so you can take it anywhere. It offers a gorgeous 3” high-resolution, active-matrix color display that allows information-ri... Read more
The New ColibriNano takes USB dongle SDR receivers to a new level. This is a direct sampling, high quality SDR receiver covering 100 kHz to 55 MHz with up to 3 MHz sample rate in a sturdy aluminium USB stick. With the new ColibriNANO you wi... Read more
In an ex parte statement filed March 10 with the FCC, the ARRL has asked the Commission not to adopt “an overbroad” requirement for notification of ut... Read more
Ham radio volunteers living in areas having good signal propagation into the Caribbean region are being asked to activate their home ALE (automatic li... Read more
Description The fun and efficient way of learning morse code! Features: – Uses Koch’s training method (the most efficient known to date)... Read more
The new ARES Plan adopted by the ARRL Board of Directors at its Annual Meeting in January represents an effort to provide ARES with a clearly defined... Read more
“Dr. Philip J. Erickson, W1PJE, is an assistant director and head of the Atmospheric and Geospace Sciences group at Haystack Observatory, operat... Read more
The Belgian Dutch-language weekly The Sunday (de Zondag) recently reported incorrectly that just 153 Amateur Radio licensees existed in the country, d... Read more