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.
CHAMELEON ANTENNA Portable HF Antennas are made with the finest materials available. They can be used for multiple purposes such as Base Station, Portable, Mobile, Marine, EMCOMM, MARS/CAP, ARES, SATERN, RACES, First Responders, Emergency P... Read more
The HobbyPCB RS-UV3 radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3 is a low cost transceiver solution for Packet Radio, repeaters, Echolink stations, base station and mobile applications. The RS-UV3 supports multiple int... Read more
January 1 was the opening day for the ARRL International Grid Chase 2018 (IGC), and newly minted General-class operator Katie Thompsen, KI7HCX, of Mt... Read more
Check great article about Emergency Communication from Robert Richardson : Read more
“The DXer and the Technician” – 22 minutes (UHD 4K resolution) – English version This true story is about two amateur radio operators who have been fr... Read more
The MB8 15-20 SF is a fullsize antenna for 14 MHz and 21 MHz. No traps or adapting systems where used to obtain fantastic performances and the best ba... Read more
Connecticut native Melissa Stemmer has joined the ARRL Headquarters staff as Development Manager. Born and raised in Waterbury, Stemmer earned a bache... Read more
CWops is now accepting nominations for its Award for Advancing the Art of CW for 2020. The award recognizes individuals, groups, or organizations that... Read more