KNBR (AM 680) Antennas, Redwood City, CA, 2024.
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AM broadcast is a technically interesting and somewhat endangered medium. The low frequencies mean that signals routinely travel well beyond their local coverage areas, especially overnight in winter. So there's a bit of mystery in tuning around the dial late at night; you never know what you might pick up.
Sadly, industry consolidation and the growth of higher bandwidth media (FM, satellite, podcasts) has greatly reduced the variety and local focus of programming. But it somehow hangs on.
@mattblaze I still have flashbacks to driving I80 across the endless snow-covered plains of Nebraska, the night of December 22nd 1978, listening to a Chicago station, and each hour the news breaks would have updates on the number of corpses found in John Wayne Gacy's crawlspace.
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@mattblaze I understand that a lot of the metal in an AM broadcast antenna array is underground, in the form of buried radials.
@0x0ddc0ffee yep. The radial systems for these antennas are impressive. Also why they prefer marshes and other wetlands, which further improves the ground conductivity.
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The rapid decline in recent years of local content on the mediumwave bands has considerably reduced the romantic mystery of tuning around and seeing what you find. It's mostly now a sterile mix of mass-produced, syndicated right wing talk, sports, and so on. But there are still a handful of stubbornly local stations producing their own programming.
@mattblaze I remember in tuning the AM band late at night and hearing the regional accents, programming, and ads. The word has gotten smaller.
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undefined oblomov@sociale.network shared this topic on
Gli ultimi otto messaggi ricevuti dalla Federazione
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@starcross@mk.absturztau.be yeah well I'm daily driving Fedora xfce. It's like I'm back in 2005, the way things don't work juuuust right
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Taranto, un’altra vita spezzata sul lavoro
@giornalismo
articolo21.org/2026/03/taranto…
Aveva ventisei anni e lavorava dentro lo stabilimento siderurgico di Taranto, uno dei più grandi d’Europa. Questa mattina è precipitato durante un intervento in un’area dell’impianto e non è sopravvissuto alle ferite riportate nella caduta. Ventisei
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“Mancano 20 giorni al referendum e non esistono ancora dati ufficiali chiari e leggibili”
@giornalismo
articolo21.org/2026/03/mancano…
Una nota dell’Osservatorio par condicio Comitato Società Civile per il NO, rileva che è gravissimo il fatto
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@fsinn hang tough and thanks for what you do.
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@jessamyn nice!
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I’m so tired of these assholes. I’m logging off.
Goodnight, folks. Be well, stay safe. ✌🏻
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Taranto, un’altra vita spezzata sul lavoro
@giornalismo
articolo21.org/2026/03/taranto…
Aveva ventisei anni e lavorava dentro lo stabilimento siderurgico di Taranto, uno dei più grandi d’Europa. Questa mattina è precipitato durante un intervento in un’area dell’impianto e non è sopravvissuto alle ferite riportate nella caduta. Ventisei
