Reddit mentions of Kathson Pack of 15 Magnetic Ferrite Core Cord RFI EMI Noise Suppressor Cable Clip

If the operator is a licensed ham and his station is in good operating order, there's not much you can do. All of your electronics have those labels on them stating that they are FCC Part 15 compliant - this means they must not create interference to a licensed device, and must accept interference form a licensed device. The law actually protects him, not the other way around.

There are ways to reduce the interference accepted by devices. Ferrite chokes are a common place to start. Wrap the leads on your speakers a few times through snap on ferrite cores (like these ). You'll also want to wrap a zip tie around the core, they snap on parts will loosen over time and the tiniest, tiniest gap renders them ineffective.

I have a link bomb of RFI prevention, along with some grounding things. That might have some helpful information for you. It generally comes down to applying lots of the proper ferrite all over.

The ham might be willing to help you correct the issue if you approach him cordially. Just nicely explain the situation. We may also be able to help some here.

I spent a good while in /r/vive before receiving my Vive. One of the suggestions that was made regarding the lighthouses and jitter was ferrite beads.

I am in a metropolitan area, but more importantly my subwoofer used to play what sounded like a radio station when it was not being used by my receiver. This lead me to believe that ferrite beads were a good investment for my lighthouses(to mitigate interference there). I bought this pack -

Ferrite Beads

I used about 4 of the ferrite beads on the subwoofer and it is no longer audible when the receiver isn't using it. I placed two ferrite beads on the power cords for each Lighthouse and have had nothing but good experiences with my Vive. Although I haven't tried without the beads, I experience no jitter.

I wouldn't have given this suggestion much thought if it wasn't for the fact that a Valve engineer actually responded and seemed to agree that RF can interfere with the lighthouses.

This is the thread I am referring to -

https://www.reddit.com/r/Vive/comments/4ghqyc/strong_rf_pollution_from_a_radio_tower_might/

DisplayPort cables are extremely sensitive to EMF, and switching a light on and off causes a spike. If the cable isn't well shielded enough, this can happen. Try picking up a ferrite ring (you don't need 15, and these might not be the right diameter for your cable, but something like: https://www.amazon.com/Bluecell-Magnetic-Ferrite-Suppressor-diameter/dp/B00MFCD56C ) and clamping it onto the DP cable and see if that helps.