Home Forums Hunting & Shooting Hunter's Campfire Help me find rf interference at home

Negative.

You aren't near Fairchild are you?

They aren't up to any spook schiedt up there , are they?

Never heard of this phenomenon

Such can be a real mystery. We once had some analytic instrument at work affecting nothing whatsoever on our grounds. When the unit was on, however, and it was a rarity for us to turn it off, a neighbor down about a mile essentially had no operable radio or TV. It took some serious investigative work by a well-paid consultant and electrician to eliminate the issue eventually requiring an extremely noisy in room transformer dedicated solely to that unit. Cost us about $20K to solve the problem. Same instruments at other facilities were no issue.

Good luck.

There was a guy on Garage Journal that had the same issue with I believe a Dodge or Ram truck, don't remember all the details but one of the local utilities ended up being involved. Try searching GarageJournal.com's Freeparking forum for the issue.

Might be some WiFi thingy you’ll have a power pole nearby?

I couldn't find the first one but substituting the O for a Q found something operating at 315MHZ

The second and third one operates at 433 mhz, those are in the amateur radio band. Most amateurs are not constantly broadcasting though.

433 mhz is also used for telemetry from quad copters and such. I have a couple 433mhz devices for sending info from a weather station I'm building. https://www.adafruit.com/product/3071 Something like that might give you grief.

I'm going to assume your batteries are good. I recently replaced the coin cell in my glucose monitor and still had a low battery alarm, then I looked at the package, no expire date but a 2012 copyright date. Found something newer and it worked. Coin cells best tested with a 300 ohm load.

Any large construction sites nearby?. I had that problem for a while and found that the contractors were using a FRS band that was interfering with my remotes. Once the site was completed everything worked

This was just what I was going to say. An FM radio de-tuned so it picks up random static will also pick up the harmonics of whatever interference you're generating. I've used this back in the day to figure out whether computer hard drives were functioning properly. The old drives put out quite a bit of RF, and you could hear regular recognizable patterns if things were working properly and some strange noises they weren't.

A bad power line transformer can emit RF that might mess with RF sensors. They used to give us a fit in the telecommunications business. You can usually find it with a detuned radio too.

Tracker someone put on yourcar(s).

I'd take one away and have your wife try the others.

Aren't those the frequency used by TPMS wheel sensors, as well?

This guy might have some answers for ya.

https://www.nk7z.net/rfi-now-house-cleaning/

Do you or your neighbor have a cell phone signal booster on the roof? Ours is about 6x8x2", and the instructions had several warnings about rf gain interference.

Any Florescent Lighting around? Ballast can emit EMI interference from anywhere between 10 KHz to 100 MHz.

Phil

Very curious, keep us posted

C305

Any pipe lines next to you? There are often radio systems attached. Usually with directional antennas.

High country did you find what is causing your problems? It would be interesting to know what it was.