weather impact on 2.4Ghz, eg Zigbee, Wifi etc?

Discussion in 'General Electronics Chat' started by bug13, Jun 30, 2015.

  1. bug13

    Thread Starter Well-Known Member

    Feb 13, 2012
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    Hi guys

    Has anyone done any test on the weather(rain, frog, snow, temperature etc) impact on 2.4GHz rf link?

    Thanks guys!
     
  2. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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    in general; X band and K band microwave emission is affected by water in ALL its forms. zthe affect is not a positive one.
     
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  3. wmodavis

    Well-Known Member

    Oct 23, 2010
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    It would be good if you would construct the test of weather on wi-fi transmission and report back with your findings.
     
  4. bug13

    Thread Starter Well-Known Member

    Feb 13, 2012
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    What is the x band and k band
    I will do that if I end up doing a test myself.
     
  5. kubeek

    AAC Fanatic!

    Sep 20, 2005
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    Ever heard of google?
     
  6. bug13

    Thread Starter Well-Known Member

    Feb 13, 2012
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    I was going to ask, then I did googled it. I don't record sending this question "What is the x band and k band", I don't know why it pop up in this thread.
     
  7. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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    For the record. 2.4 GHz is an "S" band freq. and is used in long range weather radar since it is the least affected by atmospheric water of all the weather radar bands.

    For more detailed information here is a link to bands and waveguide sizes. Have a look around the site. It is a very short, sweet primer on most things microwave.

    http://www.microwaves101.com/encyclopedias/rectangular-waveguide-dimensions
     
  8. bug13

    Thread Starter Well-Known Member

    Feb 13, 2012
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    I found this, hope it's useful for someone:
    http://soda.swedish-ict.se/3648/1/boano09lowpower.pdf

    However, I don't quite agree with the conclusion regarding the impact of rainfull. On page 9, it says:
    because I believe the graph on page 11 is mis-understood.

    The report says that the signal drop is not the impact of rainfall, but I think it is, as there is a 30 minutes delay of the rainfall measurement.

    Any thought??
     
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