Home » Uncategorized » The Exterior Shell of the Deming Box is now complete (photo)

The Exterior Shell of the Deming Box is now complete (photo)

Follow World Hum Map and Database Project on WordPress.com
Follow World Hum Map and Database Project on WordPress.com

20150605_091818

Next: the hatch.


9 Comments

  1. Lisle says:

    The hatch will be tricky. best of luck. I wonder if I could fly over there to participate when it’s ready?

    • I would suggest that any significant travel wait until at least the soundproof unit is ready, and ideally the control box as well. But in any case, if the VLF-blocking unit yields impressive results, then you are more than welcome to test it! Glen.

  2. George G. says:

    I can’t see the earth-strap lug, but I know you won’t forget it, will you Glen?

  3. My goal is to create a VLF-free zone inside the box. My understanding of electrostatics is that any excess charge moves to the exterior of a metal container. Could you spell out your concern regarding excess charge on the exterior of the box as it relates to what is happening inside the box? Thanks, Glen.

  4. George G. says:

    I understand your reasoning and hope you do create a VLF-free zone inside the box.

    You will also have a floating metal monopole antenna susceptible to spurious RF noise, which can be generated from within the box.

    Does your monitoring equipment inside the box employ a switching power supply? A digital display?
    A microprocessor?
    Will its power source be fed from an external cable?

    If you are using a receiver inside the box you want the very best signal to noise ratio obtainable. You need to be able to ‘crank up’ the gain to its max. (Has the receiver a manual RF gain control?)

    A well-earthed metal surrounding will not only give your equipment a good head start in the S/N ratio race, it is also good practice in any radio related work.

  5. slicapa says:

    I wonder who has to do the hum with HAARP, please. I need this information for my class, thanks. 😉

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