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Blocking the signal from the key FOB

Discussion in 'Model S' started by supratachophobia, Feb 4, 2017.

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  1. supratachophobia

    supratachophobia Active Member

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    I know we all try to do everything we can so that the key FOB works, but I had a need for it NOT to work. Sometimes when I go out running or climbing, I want to leave the FOB in the car, yet I also don't want someone to steal the car. Plus, my wife likes to leave her purse in the car sometimes, and it seems regardless of where we put it, frunk, backseat, trunk, the car will still open because the key is in the car. Queue my homemade FOB sarcophagus....

    IMG_20170204_234423.jpg IMG_20170204_234439.jpg IMG_20170204_234456.jpg

    3d printed and then lined with aluminum foil. It also has the plate from the Scosche magnet mount so I can keep it out of prying eyes. Although, now that I think about that, I could have just thrown it under the seat.... Oh well. Signal from the FOB is completely blocked, even when placed directly on the windshield spot.
     
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  2. psgabin

    psgabin Member

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    just curious would the bag they give you with a ezpass to prevent a t reading work?
     
  3. supratachophobia

    supratachophobia Active Member

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    Good question. We don't have EZ pass here, but I suppose a standard electrostatic-shielded bag might do the same thing. Although it is kinda nice having something you "made" yourself.
     
  4. bktiger86

    bktiger86 Member

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    Funny that you posted this because today I was trying to find a way to put my key in the Model S. I heard another good alternative is an ALTOIDs tin can.
     
  5. HankLloydRight

    HankLloydRight Fluxing

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    Take the battery out.
     
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  6. Hammer@OR.US

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    I've tried an Altoids tin and it didn't work to shield the fob. I had to use a ferrous sheet metal box.
     
  7. No2DinosaurFuel

    No2DinosaurFuel Active Member

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    Tin can worked for me. Just make sure you close it completely to form the shield. Any opening will allow RF to get out and bounce.
     
  8. supratachophobia

    supratachophobia Active Member

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    RF leaks, noted.
     
  9. TexLaw

    TexLaw Member

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    That's a pretty cool DIY solution.

    For those that do not have access to a 3D printer or just don't want to DIY, there are wallets and pouches available for around $8-9 that are designed for blocking key fob signals (or cell phones, or what have you). Put your fob in there and then pop it in the glove compartment.
     
  10. mrElbe

    mrElbe Active Member

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    Wait a minute! If you shield the Fob and put it in the glove compartment and then leave the car it will autolock. How will you get in later?
     
  11. HankLloydRight

    HankLloydRight Fluxing

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    Mobile app, probably.
     
  12. HankLloydRight

    HankLloydRight Fluxing

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    Also, this sounds like a good product addition for Abstract Ocean. Peter?
     
  13. boaterva

    boaterva Supporting Member

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    So the S doesn't have the dead zone location the X has where you can place the fob and it won't be 'read'?
     
  14. SomeJoe7777

    SomeJoe7777 Marginally-Known Member

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  15. bishoppeak

    bishoppeak Member

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    So the fob is too much trouble to carry, but your cellphone is OK? I just put my fob in a snack size plastic baggie and tuck it in the pocket of my running shorts.
     
  16. supratachophobia

    supratachophobia Active Member

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    I haven't found it yet. It used to be the rear deck of the trunk, but current tests seem that it still works there.
     
  17. supratachophobia

    supratachophobia Active Member

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    Arm band. Yes. Plus the key is soooo tiny.
     
  18. boaterva

    boaterva Supporting Member

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    Interesting. So SC's can't leave fobs in cars for S owners who can unlock via app? Seems strange that feature would have evaporated if it had been there. I can see it only being on the newer X.
     
  19. Maximapolak

    Maximapolak Member

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    Why would you leave the key or purse in the car?

    People can get break the window and take the key and purse. Many thieves are opportunistic.
     
  20. supratachophobia

    supratachophobia Active Member

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    I didn't know about the dead zone in X
     

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