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Matt Blaze@federate.social to Photography@fedia.io · 4 months ago

KNBR (AM 680) Antennas, Redwood City, CA, 2024.

fedia.io

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  • cross-posted to:
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KNBR (AM 680) Antennas, Redwood City, CA, 2024.

fedia.io

Matt Blaze@federate.social to Photography@fedia.io · 4 months ago
message-square
28
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fedilink
  • cross-posted to:
  • [email protected]
  • [email protected]

KNBR (AM 680) Antennas, Redwood City, CA, 2024.

All the pixels, none of the RF exposure, at https://www.flickr.com/photos/mattblaze/54131419266

#photography

  • Matt Blaze@federate.socialOP
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    4 months ago

    Note, important safety tip: you can get closer to this tower without clearly trespassing or jumping fences than most other 50KW broadcast antennas I’ve encountered. I measured a field strength of over 80V/m a bit outside the tower fence, which is an incredibly strong signal (though still within OSHA limits at the frequency involved).

    Resist any temptation to jump the fence and climb the (energized) tower. You’d be electrocuted as soon as you touch it.

    • greem@cyberplace.social
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      4 months ago

      @[email protected] there may be a literal pair of smoking boots as the only remaining evidence.

      • Live, Laugh, Punch Nazis@thepit.social
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        4 months ago

        @greem @mattblaze I’ve seen that movie.

        • Matt Blaze@federate.socialOP
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          4 months ago

          @20002ist @greem I don’t think you want to look in the trunk, officer…

          • Live, Laugh, Punch Nazis@thepit.social
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            4 months ago

            @[email protected] @[email protected] The actual line is even better.

            Your browser does not support playing HTML5 video. You can download a copy of the video file instead. Here is a description of the content: video/mp4

            • Matt Blaze@federate.socialOP
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              4 months ago

              @[email protected] @[email protected] Proof that “You don’t want to look in there” > “I do not consent to a search”

              • Fisher@infosec.exchange
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                4 months ago

                @[email protected] @[email protected] @[email protected] I’m gleeful to see the absolute best film ever made finally referenced here. Laughing aloud, thanks

    • David@infosec.exchange
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      4 months ago

      @[email protected]

      Ever since I saw this video by @[email protected], I realized that respect for towers could be life-saving.

      https://youtu.be/GgDxXDV4_hc

    • Michael Helm@sfba.social
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      4 months ago

      @[email protected] Interesting I’m going to do some field tests for interference for a wildlife monitoring radio system & I’m wondering what you used to measure this

      • Matt Blaze@federate.socialOP
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        4 months ago

        @mwhelm For AM, the instruments of choice are the Potomac FIM-41 or PI-4100 (the former being older, analog, and more fun to use, the latter being soulless, digital, and easier to use).

        • Matt Blaze@federate.socialOP
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          4 months ago

          @[email protected]

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