Has anyone seen this ?

Spanky97

This noise started about 45 days ago. un hooked antenna and its gone, so my thought is its coming in through the antenna. Will do the power shut down when the warrden is not at home, any ideas?

John KB4DU

Pretty definitely a switching power supply of some sort. Have any neighbors installed solar panels? The inverters will also do this. The first test is to pull the main breaker with the flex receiver powered by battery, ups or whatever is available.

Spanky97

Thanks John.

Mike Steventon

You think you have got problems..... Here is a shot of my 160m band being helped by solar panels adjacent!!!

Spanky97

Thanks Mike, my 160M is quiet except in summer when the AM radio station about 12 miles away gets going on the medium wave towards europe.

John KB4DU

Any results with the breaker test?

Spanky97

Morning John, I will be doing the breaker test today. Will keep you updated

Spanky97

Afternoon All. did the whole power shut down on the house and property. still there. guess i will get the RSP1A (SDR), laptop, and a battery with a small loop for an antenna and go hunting. Too continue latter. Thanks for the help gentlemen. KE0SYB Daniel

Spanky97

John KB4DU

Yes, probably external to the house. There are some devices that appear to be off but may actually may be on.

Spanky97

Evening john, disconnected whole house at the meter. No ups on anything, phone line may have a few volts . Cordless phones work off wall worts which are without power. Only solar is three blocks away and they are grid systems . I will just have to go hunting.

KM4CQG

I found my phone wall wart was causing similar issue.

Geoff AB6BT

@KM4CQG "I found my phone wall wart was causing similar issue."

With the power off???

Spanky97

I killed the power to my house and property so I could eliminate the possibility that the interference was caused by my house. It is definitely off site. In the process of logging time of day, start/stop so I can narrow down what it may be.

Spanky97

morning all, power and cable company are here running around like a bunch of mad ants. this problem is full spectrum no matter what frequency I am on. no one seems to know what it is. did my part so now its up to the professionals. this may take a couple weeks to resolve will follow up when new data dictates.

Spanky97

Found the problem. it's a switching power supply that runs some of the rail road crossing lights and control arms. made a complaint to the FCC. one week later RXR crews were down taking a look at things. noise stopped for three days. what ever they did it took the noise down to 15DB. it is manageable on my end but not gone. this Friday 8/11/2023 its all gone. do not know what they did. the power company's and cable tv did a real great job helping me find this. to all, don't be afraid to use the FCC they were great for me. now I did all the leg work, but for the peace and quit its worth it. Thanks for the input gentlemen.

John KB4DU

I was having a similar problem from a nearby power line in insulator. Found and fixed by the electric co-op.

Spanky97

Morning John, thanks for all your input with this. power company found a lightning arrestor on one of the poles arcing and replaced it. all is good for now.