Ponder.cat
  • Communities
  • heart
  • search
    • Login
    • Sign Up
    • Communities

    • heart
      Support Lemmy
    • search
      Search

    • Login
    • Sign Up
    Matt Blaze@federate.social to Photography@fedia.io · 5 months ago

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

    fedia.io

    message-square
    28
    fedilink
    • cross-posted to:
    • photography@fedia.io
    • photography@fedia.io
    3

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

    fedia.io

    Matt Blaze@federate.social to Photography@fedia.io · 5 months ago
    message-square
    28
    fedilink
    • cross-posted to:
    • photography@fedia.io
    • photography@fedia.io

    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
      link
      fedilink
      arrow-up
      1
      ·
      5 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
        link
        fedilink
        arrow-up
        1
        ·
        5 months ago

        @mattblaze@federate.social there may be a literal pair of smoking boots as the only remaining evidence.

        • Live, Laugh, Punch Nazis@thepit.social
          link
          fedilink
          arrow-up
          0
          ·
          5 months ago

          @greem @mattblaze I’ve seen that movie.

          • Matt Blaze@federate.socialOP
            link
            fedilink
            arrow-up
            0
            ·
            5 months ago

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

            • Live, Laugh, Punch Nazis@thepit.social
              link
              fedilink
              arrow-up
              1
              ·
              5 months ago

              @mattblaze@federate.social @greem@cyberplace.social 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
                link
                fedilink
                arrow-up
                1
                ·
                5 months ago

                @20002ist@thepit.social @greem@cyberplace.social Proof that “You don’t want to look in there” > “I do not consent to a search”

                • Fisher@infosec.exchange
                  link
                  fedilink
                  arrow-up
                  1
                  ·
                  5 months ago

                  @mattblaze@federate.social @20002ist@thepit.social @greem@cyberplace.social I’m gleeful to see the absolute best film ever made finally referenced here. Laughing aloud, thanks

      • David@infosec.exchange
        link
        fedilink
        arrow-up
        1
        ·
        5 months ago

        @mattblaze@federate.social

        Ever since I saw this video by @geerlingguy@mastodon.social, I realized that respect for towers could be life-saving.

        https://youtu.be/GgDxXDV4_hc

      • Michael Helm@sfba.social
        link
        fedilink
        arrow-up
        1
        ·
        5 months ago

        @mattblaze@federate.social 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
          link
          fedilink
          arrow-up
          1
          ·
          edit-2
          5 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
            link
            fedilink
            arrow-up
            1
            ·
            5 months ago

            @mwhelm@sfba.social

    Photography@fedia.io

    photography@fedia.io

    Subscribe from Remote Instance

    Create a post
    You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !photography@fedia.io

    All things photography. Share your own original photos, your questions, your inspiration.

    Rules

    Share your own original photography. No NSFW images. Be Nice.

    Visibility: Public
    globe

    This community can be federated to other instances and be posted/commented in by their users.

    • 81 users / day
    • 298 users / week
    • 789 users / month
    • 2.18K users / 6 months
    • 1 local subscriber
    • 0 subscribers
    • 1.05K Posts
    • 2.02K Comments
    • Modlog
    • mods:
    • photography@fedia.io
    • UI: unknown version
    • BE: 0.19.8
    • Modlog
    • Instances
    • Docs
    • Code
    • join-lemmy.org