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VR base stations loose track with motion rig on. EM interference problems?

Discussion in 'VR Headsets and Sim Gaming - Virtual Reality' started by TheTakerPL, Jan 11, 2026 at 02:03.

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  1. TheTakerPL

    TheTakerPL New Member

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    I'm experiencing weird problem with Pimax Crystal Light with Lighthouse faceplate and HTC base stations. It looses tracking constantly when rig is turned on.

    How it behaves: When rig turned off I can do everything with my headset, lift it to peek to the screen, take it off, put to the side, tracking is very good.
    With rig turned on it works mostly when I don't make large head movements, when I touch it with my hand to lift it slightly and peek to the screen tracking jumps suddenly somewhere and screens go black, until I put it again and stay still. WTF?!

    I've done everything mentioned in this guide:
    https://luisblando.medium.com/how-i-solved-the-emi-problem-in-my-simrig-3ea6c0907609

    Grounded everything, installed expensive EMI filter, installed ferrite rings everywhere, installed expensive Brennenstuhl brand power strips with RFI/EMI filters, NOTHING HELPED!!
    After a year of work and thousands of dollars spent I'm loosing my mind.

    Left station is connected to the same outlet as rig power supply. Right station is at the PC outlet. Both outlets go from the same line, same ground from same circuit breaker.

    [​IMG]

    My rig: 6DOF hoverboard actuators with 3x ODrives
    https://www.xsimulator.net/community/threads/wip-6dof-on-hoverboard-motors-and-sfu-gearboxes.19564/

    My power supply for rig 48V 1500W switching power supply form Aliexpress:
    https://www.xsimulator.net/community/threads/wip-6dof-on-hoverboard-motors-and-sfu-gearboxes.19564/

    EMI filter:
    [​IMG]

    What else I can do?

    (Pimax inside out tracking is out of question - it's useless crap)
    TheTakerPL, Jan 11, 2026 at 02:03
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    Have you tried a solid window curtain?

    I say that because while EMF can be an issue, so too can any sort of reflective surface.

    It is an easy test, just temporarily hang some solid material like a towel.
    noorbeast, Jan 11, 2026 at 03:22
    #2
  3. TheTakerPL

    TheTakerPL New Member

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    Covered, and nothing changed
    TheTakerPL, Jan 11, 2026 at 04:12
    #3
  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    The pretty much confirmed EMF or occlusion.

    Loss of tracking when using your hand to adjust the HMD is likely sensitive occlusion.

    Have you tried the base stations on the shelf just in front of the rig.
    noorbeast, Jan 11, 2026 at 05:36
    #4
  5. TheTakerPL

    TheTakerPL New Member

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    I found a reddit thread with exact same issue.
    https://www.reddit.com/r/Fanatec/s/bE0vcbgzjZ

    He posted a link to proper type ferrite cores that solved his problem. I ordered a few from Conrad to wrap the VR cable the same way. Hope this will work.
    TheTakerPL, Jan 11, 2026 at 05:57
    #5