Ham Radio 101: Why You Hear Stations That Don’t Hear You

Ham Radio 101: Why You Hear Stations That Don’t Hear You

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: onallbands.com — 🔗 Leggi l’articolo originale One of the great frustrations of amateur radio is hearing a station loud and clear while the other operator seems completely unaware that you exist. You can hear her calling CQ; you can copy every word of the exchange with another station. But when you transmit, it’s like your signal has disappeared into a black hole. You know your transmitter is working. Your…

Risolta vulnerabilità in MikroTik RouterOS

Risolta vulnerabilità in MikroTik RouterOS

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: acn.gov.it — 🔗 Leggi l’articolo originaleAggiornamenti di sicurezza per MikroTik RouterOS sanano una vulnerabilità con gravità “alta”. Tale vulnerabilità, qualora sfruttata, potrebbe consentire a un utente malintenzionato remoto autenticato di eludere i meccanismi di sicurezza ed elevare i propri privilegi sui sistemi interessati.

Monitoraggio ambientale IoT con ESP32 e ThingSpeak

Monitoraggio ambientale IoT con ESP32 e ThingSpeak

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: it.emcelettronica.com — 🔗 Leggi l’articolo originale In questo articolo apprenderemo come progettare un sistema di monitoraggio ambientale IoT per il rilevamento di temperatura, umidità e pressione atmosferica. Il progetto, che descriveremo passo-passo, prevede inoltre la possibilità di pubblicare sul sito web ThingSpeak le letture dei parametri ambientali acquisite dal sensore BME280 ed elaborate dal microcontrollore ESP32. Introduzione Prima di addentrarci nel cuore del progetto, innanzitutto occorre installare il software…

Top Amateur Radio Websites – Issue 2640

Top Amateur Radio Websites – Issue 2640

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: dxzone.com — 🔗 Leggi l’articolo originaleThis week, we’ve gathered some interesting material for those of you exploring beyond the usual HF fare. There’s a good piece on current satellite operations, covering both LEO and GEO birds, which is always something worth revisiting as the constellations evolve. For the portable ops crowd, we’ve got a practical guide to POTA antennas, focusing on field-friendly designs. And if you’re looking to get…

MY11M megalodon, Yagi antenna build

MY11M megalodon, Yagi antenna build

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale So after looking at the selection of eight element Yagi antennas oh wait I didn’t find any. I decided that I could build a better one for less money that would ot perform anything Any company out there could produce. I have a bunch of 6061 2 1/2″,and 3″ Square tube I can easily source heavy duty aluminum elements at least the aluminum…

MY11M megalodon, Yagi antenna build

FCC requiring that EBAY sellers submit FCC ID on any radios going up for sale????????

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale I just saw this on a YouTube video this morning….. so who knows if it is true????? That guy was apparently involved in CB repair and said that HE just heard that the FCC has placed requirements on EBAY that THEY require submission of the FCC ID for any radios put up for sale. The guy went on to pick up several typical…

Considering a kenwood final on a washington, again.

Considering a kenwood final on a washington, again.

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale My daily driver is a uniden washington. I have an extra TS-130s final unit and I have been wanting to attach it to the washington for years now but abandoned it due to a lack of knowledge. I think I have the connections figured out now. It would seem the first pair or wires on the bottom is for SWR foldback as it…

The ’36 George Batterson CW QSO Party – Summary

The ’36 George Batterson CW QSO Party – Summary

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: amateurradio.com — 🔗 Leggi l’articolo originaleThe third annual George Batterson Memorial CW QSO Party has concluded and the results are coming in! The “GB” was introduced to honor George Batterson (W2GB), who along with Bruce Kelley and Linc Cundall, formed the Antique Wireless Associati…

3DA0GY – eSwatini

3DA0GY – eSwatini

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: hamradioworld.org — 🔗 Leggi l’articolo originaleOp: LA9GY Bands: 10M – 40M Modes: CW & SSB Qsl Info: Qsl via LA9GY Start Date – End Date: Oct. 14 – Nov. 03 Webpage: https://www.qrz.com/db/3DA0GY Notes: He will be QRV for the Worked All Germany (WAG) SSB Contest and the CQ WW DX SSB Contest.

via Hackaday: A Super-Accurate Clock Using a Tiny Microcontroller

via Hackaday: A Super-Accurate Clock Using a Tiny Microcontroller

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: twiar.net — 🔗 Leggi l’articolo originaleDCF77 is a German VLF transmitting station that broadcasts a time signal across Europe on…