Giorno: 15 Maggio 2020
Tecniche di layout per regolatori switching
In questo articolo si forniranno le basi per progettare correttamente e con buoni risultati il layout di un regolatore switching, con attenzione all’inserimento dei componenti,…
Homebrew Gainmaster Antenna
Video:YouTube/hollyend01 We’ve featured the homebrew Gainmaster on the blog before but here’s a couple of new videos made by Mike M0MSN showing his take on…
Amateur Radio Gearing Up for Predicted “Above Average” Atlantic Hurricane Season
Extended-range forecasts for the 2020 Atlantic Basin hurricane season anticipate above-normal activity, although a low-pressure system now off the coast of Florida could get a jump on…
ARRL Announces New Life 70+ Membership
The ARRL Board of Directors recently voted to create a special Life Membership opportunity for individuals who are at least 70 years old. Starting on…
The Great Geomagnetic Storm of May 1921
99 years ago this week, people around the world woke up to some unusual headlines. “Telegraph Service Prostrated, Comet Not to Blame” — declared the…
ARISS to Attempt Second Test of New Multipoint Telebridge Contact System
Amateur Radio on the International Space Station (ARISS) is hoping to refine its new “multipoint telebridge” system for handling scheduled ham radio contacts between International…
ARRL Seeks Clarification of Amended Amateur Service RF Safety Rules
ARRL has filed a Petition for Clarification addressing two issues arising from amended FCC RF safety rules that go into effect on June 1 for the Amateur…
