Seven different sunspot groups were visible over the past week. The high sunspot number in the past seven days was 71 on Tuesday, and the average daily sunspot number more than doubled, rising more than 24 points to 44.3. The average daily solar flux was up nearly three points to 83.5. 71 is the highest sunspot number since May 5, 2010 when it was 77. Coincidentally, both February 8, 2010 and F...
The March/April issue of QEX is coming soon, and it is full of theoretical and practical technical articles that you won't want to miss. QEX is the ARRL’s “Forum for Communications Experimenters.” Published bimonthly, it features technical articles, columns and other items of interest to radio amateurs and communications professionals. The mission of QEX is threefold: To provide a medium for th...
By Stan Horzepa, WA1LOU
Contributing Editor
This week, your Surfin’ editor sees hams in the salt water antenna video and maybe on The Big Bang Theory.
Den Nendza, W7KMV, wrote recently to remind me about the salt water antenna video. The video demonstrates the development of a technology that uses the magnetic induction properties of salt in sea water to create a VHF antenna. US Navy engineers at ...
The crew of the International Space Station attached the AMSAT ARISSat-1 satellite to the station's external antenna and made several test transmissions this afternoon on 2 meters. A number of amateurs heard the test signals on 145.950 MHz FM, including Roland, PY4ZBZ, in Sete Lagoas, Brasil, who recorded the audio (click here to listen).
Expedition 26 Flight Engineers Dmitry Kondratyev and Oleg...
Expedition 26 Flight Engineers Dmitry Kondratyev and Oleg Skripochka, RN3FU, will step outside the International Space Station (ISS) on Wednesday, February 16. While in space, they will install and retrieve experiments on the Russian segment of the complex and deploy ARISSat-1, a small ham radio satellite. NASA TV coverage will begin at 6:45 AM (CST), while the extra-vehicular activity -- commo...
