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#marconi

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The #FCC is investigating #SanFrancisco -based #KCBS for its coverage of #immigration enforcement actions in #SanJosé last month, sparking concerns from press freedom advocates and drawing #RightWing #backlash to the #radio station.
#KCBS is considered one of the world’s first rradio stations, and formative to #SiliconValley history. Its original license goes back to #CharlesHerrold in 1909 and his radio- #telephony system. Based in San Jose, it’s historically significant as #Marconi himself.
Attacking this station which survived through two world wars, the Great Depression, and led to the development of Silicon Valley is bound to have immense significance. They’re literally attacking the nation’s oldest broadcaster, which is integral to information and American democracy!
#SFBA #ICE #FreedomOfInformation #FreePress #CBSNews #AmericanPress #Broadcasting #Telephony #history #California
kqed.org/news/12025977/fcc-inv

KQED · FCC Investigates SF Radio Station for ICE Reporting, Sparking Press Freedom FearsBy Juan Carlos Lara

La primera gran señal inalámbrica fue IMPOSIBLE

«Marconi consiguió en 1901 transmitir por primera vez una señal de radio a través del Atlántico… Y hoy en día es difícil explicar cómo lo consiguió: si tenemos en cuenta la hora a la que Marconi transmitió la señal y la frecuencia que utilizó, parece casi un milagro que tuviera éxito. ¿Cómo lo logró? ¿O en realidad no lo logró?»

Vía Quantum Fracture

#divulgacioncientifica #ciencia #Marconi @SeñalesInalambricas #JoséLuisCrespo #QuantumFracture

youtube.com/watch?v=Ll1TbPyYX3

With some top-quality imaging by Oxford Bodleian Archives and some careful examination, I've been able to trace the radiating wires on the extension antenna array for Marconi's MUU antenna at Carnarvon. In 1925, the array was split from MUU and became GLC.

This is the only image from the entire collection in which radiating wires can be unambiguously traced and Mastodon users get to see it for the first time.

Da ich mich jetzt seit Tagen über den Step Attenuator im #Marconi 2955 aufrege wird das Teil jetzt neu gebaut. Diese ganze Mechanik mit den 30+ Jahre alten Kontakten ist nicht mehr zuverlässig.
Gesten nach einigem suchen auf dieses Bauteil gestoßen.
analog.com/en/products/hmc802.
Ist zwar mit ~7€ Stück nicht gerade günstig und ich brauche 5 um die 2 x 40dB + 20dB Abschwächer zu realisieren. Den Verlust bei durchgeschaltet sollte ich in raus kalibrieren können.
Dann will ich mal #KICAD anwerfen.