Recent content by jastewart

  1. J

    Why Does 802.11a Struggle with Penetration Compared to 802.11g?

    I am looking into why 802.11a does not permeate as well as 802.11g. I know that they are different freq. Does this mean a different cell size per packet as well?
  2. J

    Evaluating Metal's Effect on RF: Wi-Fi in the 2.4 GHz Range

    I am preparing a document for my co-workers re. metal & the effect that it has on rf (spec. Wi-Fi in the 2.4 GHz range of the spectrum). Could you please check for accuracy & edit as necessary? It is as follows: "Metal – metal can attenuate & reflect Wi-Fi. Placing an antenna in a metal box...
  3. J

    The Effects of Water on EM Waveforms

    So, what I mean is in the realm of wifi, which I always thought to be rf. Since 2.4GHz is actually in the Microwave "region" if you will, of the electromagnetic spectrum, isn't that the correct way to refer to the actual transmission medium? Specifically: What exactly do you mean by...
  4. J

    The Effects of Water on EM Waveforms

    so water absorbs (Microwave spectrum), correct? Is it correct to say that water distorts or just absorbs? What exactly is meant by metal attracts gravitationally?
  5. J

    The Effects of Water on EM Waveforms

    What effect does water have on electromagnetic waveforms? Does metal attract or reflect EM waveforms (specifically rf)?
  6. J

    Metal's Effect on RF: Attenuation, Reflection, Absorption?

    Dude, you rock...thanks...
  7. J

    Metal's Effect on RF: Attenuation, Reflection, Absorption?

    never mind, found out...pure water is an insulator (no free electrons - balanced molecule - it's the impurities in water that allow for conduction. please correct if wrong...
  8. J

    Metal's Effect on RF: Attenuation, Reflection, Absorption?

    Now I'm curious about something... thought that water was a conductor of electricity not an insulator. Is it the polarization of the waveform that makes water "conductive?"
  9. J

    Metal's Effect on RF: Attenuation, Reflection, Absorption?

    Water's effect on rf Does water distort rf? Is this similar to the way the water distorts light?
  10. J

    Metal's Effect on RF: Attenuation, Reflection, Absorption?

    What is the exact effect that metal has on rf (any electromagnetic waveform)? Is it attenuation, reflection, absorption or all of the these?
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