IZ4WNP – Radio, Elettronica & Cybersecurity

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: acn.gov.it — 🔗 Leggi l’articolo originaleDisponibile un Proof of Concept (PoC) per la CVE-2026-20230 – già sanata dal vendor – presente in Cisco Unified Communications Manager (CUCM) e Cisco Unified CM Session Management Edition (CUCM SME), note soluzioni Cisco per la gestione delle comunicazioni VoIP aziendali. Tale vulnerabilità, qualora sfruttata, potrebbe consentire ad un utente malintenzionato di scrivere file arbitrari sul filesystem dei sistemi interessati

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: twiar.net — 🔗 Leggi l’articolo originaleAn old algebra teacher used to say, “You have to take what you know and…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale I have a Johnson messenger 123a. I want to test it. How the heck do you hook these things up to 12 volt? I assume the small socket with the tab in it is the positive end. Do I just hook the negative to the chassis on the back of the radio?

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale My prized Galaxy 2100 frequency counter went out. Radio works fine though. I replaced all electrolytics, even scraped out the dried up glue. The rest of the radio also had all the electrolytics replaced. Freq counter board # EPT210010A. Radio stamped Taiwan. On the counter board, 3.2768mhz xtal and 10.6975 mhz xtal oscillating. 8 volt regulator good. Tuning the coil next to the…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale I’ve got what I call a pride puzzle! It was given to me by a good friend. And I’m really a fan of these dx300 amplifiers so I must bring it back to life! So far here is what it’s missing or will need. Missing both transformers. Missing plate choke. Missing meter. Missing main relay socket on the burnt up input board! So…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale We are dismantling an old production line at work, and one of the pieces of equipment had these neat transformers. They are step down to provide power to control circuits and motor power. They have a 600v primary and I was wondering if I could power the secondary with line voltage to use as a step up transformer? Even the little one is…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: zeusnews.it — 🔗 Leggi l’articolo originaleSicurezza –

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale After my successes with adding a VFO to my pair of Midland 13-898Bs I pulled my old Pace Sidetalk off the shelf and started messing with it. Here are some observations: 1. The VFO can be added using the same method as for the Midland. 2. The “standard” sine wave output (1V PP)from the DDS module is insufficient for the Pace. 3. Using…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: twiar.net — 🔗 Leggi l’articolo originaleProtection of Emergency Frequency Following Major Earthquake in Venezuela 25 June 2026 To: IARU Region…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: twiar.net — 🔗 Leggi l’articolo originaleHello everyone: Due to ongoing issues and commitments at TWIAR HQ in New York, the…