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  1. Embed this notice
    Matt Blaze (mattblaze@federate.social)'s status on Monday, 03-Jul-2023 06:30:27 JST Matt Blaze Matt Blaze

    Mason MPR wideband TSCM receiver (with scope and frequency counter), ca 1970's.

    These receivers, which covered from 20KHz to 10GHz with interchangeable modules, were used in "bug sweeps" to locate hidden surveillance devices. They were state of the art (and priced accordingly). I believe my sample was originally owned by the State Department.

    Original in all its Scheimpflug glory at https://www.flickr.com/photos/mattblaze/50181653253

    Not 16:9, so you may need to click the preview to see the whole image.

    #photography

    In conversation Monday, 03-Jul-2023 06:30:27 JST from federate.social permalink

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    1. https://cdn.masto.host/federatesocial/media_attachments/files/110/646/193/005/785/046/original/89c945b9228fb3b3.jpeg

    • Embed this notice
      Matt Blaze (mattblaze@federate.social)'s status on Monday, 03-Jul-2023 06:30:24 JST Matt Blaze Matt Blaze
      in reply to
      • ohiorob

      @ohiorob The briefcase it came with has a bunch of antennas for different frequencies (as a well as interfaces to connect it to power and phone lines)

      https://www.flickr.com/photos/mattblaze/50181649923

      In conversation Monday, 03-Jul-2023 06:30:24 JST permalink

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    • Embed this notice
      ohiorob (ohiorob@mastodon.world)'s status on Monday, 03-Jul-2023 06:30:25 JST ohiorob ohiorob
      in reply to

      @mattblaze

      Wow! Cool. Did it use ferrite pickups primarily, or what other sort of antenna, do you know?

      In conversation Monday, 03-Jul-2023 06:30:25 JST permalink
      まりぞう ☑ repeated this.

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