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Zenneck Waves - I am having a hard time understanding this tech

Discussion in 'Ham Radio Discussions' started by KL7FZ, Feb 15, 2018.

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  1. KA4DPO

    KA4DPO Platinum Subscriber Platinum Subscriber QRZ Page

    Hmm, cold fusion, yeah, that's it........
     
  2. N0TZU

    N0TZU Platinum Subscriber Platinum Subscriber QRZ Page

    Cold fusion was a failure. But I'm working on lukewarm fusion.
     
    KA4DPO, K8MHZ and AC0TP like this.
  3. WA9SVD

    WA9SVD Ham Member QRZ Page


    That's a hot topic...
     
    N0TZU and KA4DPO like this.
  4. WA9SVD

    WA9SVD Ham Member QRZ Page

    Undoubtedly, with several servings of Jack Daniels, although Jim Beam will do in a pinch. YMMV.
     
  5. WA9SVD

    WA9SVD Ham Member QRZ Page


    That's good! Especially the gasses from Washington!:(
     
  6. K7JEM

    K7JEM Ham Member QRZ Page

    Zenneck waves were covered on the tech test.

    Pretty sure.
     
  7. W9JEF

    W9JEF Platinum Subscriber Platinum Subscriber QRZ Page

    They'd better keep them off my lawn! :mad:
     
    KA4DPO likes this.
  8. WD0BCT

    WD0BCT Premium Subscriber QRZ Page

    And....at the rate gas is being generated we will soon be the largest planet in our solar system....assuming it is not suddenly released...then.. Phhhht we'll be gone!
     
  9. VE7JBX

    VE7JBX Ham Member QRZ Page

    A non facetious source of some (non-technical) information on actual demonstrated applications of Zennick waves, from 2013:
    https://www.popularmechanics.com/te...-the-return-of-teslas-surface-waves-15322250/

    A few things to note:
    - in this application, they are described as 'not interfering with other electronics' and avoiding 'frequency licensing issues' - similar claims to those listed by the OP, but in this context, these make some sense as the waves are effectively trapped along the surface of dielectric-coated conductor.

    - this is however almost completely unlike claiming transmission along the surface of the Earth. To a first approximation, it seems the 'work' cited by the OP consists of people taking a real effect, and then wildly blowing it out of scale and applicability while assuming the technical jargon will awe investors.
     
  10. NG1H

    NG1H Ham Member QRZ Page

    I seem to recall that it was under well 50%. 25% or so? Off to Google...

    From <https://spectrum.ieee.org/energywis...power-transmission-for-spacebased-solar-farms> they are aiming for 21% efficiency. From other sources it appears that efficiencies of above 75% is possible but those systems do not appear to scale to high power very well.

    As to weapons capability it is still really not ready for prime time. A lot of power and well focused compared to a HF beam (see, keeping it slightly on topic!) but by the time it reaches ground it is still covering a very large area. Receiver size is measured in square miles.
     

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