IZ4WNP – Radio, Elettronica & Cybersecurity

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: dxzone.com — 🔗 Leggi l’articolo originaleThis week, we’re looking at some practical considerations for the shack and out in the field. There’s a good piece on building a multi-band delta loop, something that comes up often when space is tight or you’re trying to get more out of a single support. We also have a couple of historical notes, revisiting the foundational work of Marconi and Fessenden, which is…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale Greetings everyone. Does anyone know if there a modern equivalent diode available to replace D528 (XZ057 Zener) in the Cobra 2000 frequency counter? AI recommended the 1N4734A, which did not correct the problem. I wound up pulling a XZ057 from a parts 2000 counter. I would much rather install a new part, if available. Thanks to all. Equivalents from the Sam’s 251 manual:…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale Have this JCPenney 6247 in good condition, no mods, looking for trades or an offer, have no use or need for it

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale I know we all do some testing on our benches and not everybody has all the professional testing equipment. Either we’re not on our well equipped bench or you need something on the fly so we at times have to improvise. With so much at our fingertips in this very technological age that wasn’t at our disposal 15 to 20 years ago, I’m…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale Anyone got a better plan here? swing mod like j36 mod and a better way to bring up modulation cause the way that’s listed now sucks with aany power mic at all! or maybe some hifi?

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: daily.hamweekly.com — 🔗 Leggi l’articolo originale By Cale Mooth (K4HCK) Amateur Radio Daily Anthony (KA9NWM), the creator of Helioclock, was kind enough to send along the Live USB Stick version of Helioclock for me to review. I’ve been evaluating Helioclock in my shack and home office over the last two weeks. There has been a deluge of ham radio focused, situational awareness “dashboards” that have entered the market over…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: arrl.org — 🔗 Leggi l’articolo originale To commemorate the 25th anniversary of the September 11, 2001 attacks on the United States, the High-frequency Active Auroral Research Program (HAARP) at the University of Alaska Fairbanks will be making a special transmission on 9.11 MHz at 0030-0035 UTC on September 12, 2026 (8:30-8:35 PM eastern time Friday evening). The transmission will consist of a Morse code QST, followed by a slow-scan…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: hamradioworld.org — 🔗 Leggi l’articolo originaleFrom September 13–15, 2026, Golkem TA7AZC and Emre TA7EK, operators from the GITRAD – Giresun Amateur Radio Association, will be heading to the airwaves from Giresun Island as YM7KK/0. The island qualifies for several popular award programs: IOTA: AS-154 ️ WCA: TA-00101 WWFF: TAFF-0208 ️ POTA: TR-0328 This will be a true portable operation, with no commercial power available at the site. The team…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: arrl.org — 🔗 Leggi l’articolo originale Educator Everton Henriques, KD2ZZT, shared his experience using amateur radio to inspire students and bring engineering and technology to life in the classroom during his keynote at the 2026 ARRL New England Division Convention, hosted by Northeast HamXposition in Massachusetts on August 15. A video recording is available on ARRL’s YouTube channel. Everton is an Engineering and Technology Teache…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: twiar.net — 🔗 Leggi l’articolo originaleIn the 1960s, the home computer was barely a twinkle in anyone’s eye. This was…