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Forum RF transmission testing inside a Faraday cage
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  • faraday shield
  • rf transmitter testing
Related

RF transmission testing inside a Faraday cage

ralphjy
ralphjy over 3 years ago

Since there is RF expertise in the community, so I thought I'd try to get some insight into an area where I don't have much experience.

I'm currently working a project testing BLE transmitters and my current workroom location can experience a fair amount of RF noise in the 2.4GHz ISM band (primarily due to existing WiFi and Bluetooth/BLE).  My primary mitigation when possible is to increase distance from or turn off noise sources.  I started thinking about whether I could test within an RF shield.  My previous experiences with testing within RF enclosures was over 40 years ago and we used room scale enclosures to house the equipment and operators.

I was wondering if anyone has tried small scale enclosures to shield only the EUT and measurement setup.  What would be a good minimum size at this frequency?

TIA for any feedback.

Ralph

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Top Replies

  • scottiebabe
    scottiebabe over 3 years ago +7
    For rudimentary functional tests, I have heard of individuals using old microwave ovens as 2.4GHz faraday cages lol
  • robogary
    robogary over 3 years ago +6
    Hi Ralph - Green Bank Radio Telescope Observatory has entire buildings constructed as Faraday cages. Besides being a really fun and interesting visit, it is a public treasure, open to collaboration with…
  • shabaz
    shabaz over 3 years ago +5
    Hi Ralph, For transmission testing, just a spectrum analyser type of tool can be used (with appropriate attenuation), and a coax would be connected from the 50 ohm output (i.e. not solder any antenna…
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  • scottiebabe
    scottiebabe over 3 years ago

    For rudimentary functional tests, I have heard of individuals using old microwave ovens as 2.4GHz faraday cages lol

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  • beacon_dave
    beacon_dave over 3 years ago in reply to scottiebabe

    Slight smile

    "...I know some people who use discarded microwave ovens..."


    SDR with HackRF One, Lesson 11 - Replay - 720p

    https://youtu.be/DbuQsq4QjR4?list=PL75kaTo_bJqmw0wJYw3Jw5_4MWBd-32IG&t=418

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  • scottiebabe
    scottiebabe over 3 years ago in reply to beacon_dave

    Spoken from the King Crown of SDR, you know it has to be good! lol

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  • ralphjy
    ralphjy over 3 years ago in reply to beacon_dave

    Thanks for the link.  I enjoyed the first section of the video (didn't have time for rest of it).  Reminds me that I really would like to get into SDR someday soon...

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  • ralphjy
    ralphjy over 3 years ago in reply to scottiebabe

    Another channel subscribed to...

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  • ralphjy
    ralphjy over 3 years ago in reply to scottiebabe

    Another channel subscribed to...

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