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Posted: 6/19/2022 3:04:54 PM EDT
This has been going on for 3 or 4 days now. It's nothing I've got running at the QTH. I ran the radio off of a battery and turned off the main circuit breaker. No change. Butternut vertical or EFHW, both the same.
I can't hear a damn thing unless the other station is running some power and even then, I'm hearing very few. I hardly bother to turn on the radio anymore.     If this is Putin's fault... 
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Posted: 6/19/2022 3:09:23 PM EDT
[#1]
Time to grab a portable AM radio and go for a walk about.
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Posted: 6/19/2022 3:32:46 PM EDT
[#2]
I'm not even sure I've got a portable AM radio anymore
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Posted: 6/19/2022 3:36:49 PM EDT
[#3]
QRM eliminator. There are several utube videos on these, and some reviews on websites. It might do the trick for you.
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Posted: 6/19/2022 4:10:38 PM EDT
[#4]
Probably in the neighborhood somewhere.
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Posted: 6/19/2022 4:18:38 PM EDT
[#5]
Pole transformer going bad in the neighborhood?
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Posted: 6/19/2022 4:21:37 PM EDT
[#6]
Quote HistoryQuoted: I'm not even sure I've got a portable AM radio anymore I've noticed this suddenly being reported from all over the country on various groups, boards, facebook groups etc... Something has been put into use lately that is causing all this shit. I see it mainly in the 24-26 MHz area with lessening harmonics across all bands. It seems to be focused around the amateur bands. I assume whatever it is uses those ranges because they know nobody at the FCC will care if they trash amateur bands and there's nothing that can be done about it. |
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Posted: 6/19/2022 4:22:12 PM EDT
[#7]
Any big new appliance boxes out at the neighbor's curb?
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Posted: 6/19/2022 4:22:31 PM EDT
[#8]
Quote HistoryQuoted: I'm not even sure I've got a portable AM radio anymore Does your vehicle have AM on the radio? Use it. |
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Posted: 6/19/2022 4:38:07 PM EDT
[#9]
Might be a solar charge controller. Any new solar installations? Even a simple small battery charger can do this if close enough to you.
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Posted: 6/19/2022 10:20:27 PM EDT
[#10]
Quote HistoryQuoted: Might be a solar charge controller. Any new solar installations? Even a simple small battery charger can do this if close enough to you. Quote HistoryQuoted: Might be a solar charge controller. Any new solar installations? Even a simple small battery charger can do this if close enough to you. Quoted: QRM eliminator. There are several utube videos on these, and some reviews on websites. It might do the trick for you. Quoted: Does your vehicle have AM on the radio? Use it.  eta: I'm also going to try taking the 7300 and an EFHW antenna and setting up in another area to see if there is any change. |
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Posted: 6/19/2022 10:47:03 PM EDT
[#11]
I've seen stuff like that from grid-tied solar, looks very similar to the hash from household switching power supplies.
Quoted: I've noticed this suddenly being reported from all over the country on various groups, boards, facebook groups etc... Something has been put into use lately that is causing all this shit. I see it mainly in the 24-26 MHz area with lessening harmonics across all bands. It seems to be focused around the amateur bands. I assume whatever it is uses those ranges because they know nobody at the FCC will care if they trash amateur bands and there's nothing that can be done about it. Near me guys started picking up a ton of noise off of power lines after a new solar farm went online. Noise is pretty bad 10~15 miles away if you follow the power lines that are connected to the solar farm. |
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Posted: 6/20/2022 9:42:50 AM EDT
[#12]
Might be a grow light....
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Posted: 6/20/2022 11:29:13 AM EDT
[#13]
Used the AM radio in the truck to listen for any interference when I came home from work this morning. Other than the powerlines as I passed under them, I didn't hear much of anything in the area. And nothing at all from the driveway where I park.
I'm wondering if it's this thing. It's at the other end of the building and only about 15' from the Butternut antenna.  Grant PUD installed it a few years ago. AFAIK, it's never been a problem before, and I don't know that it even could be the issue, but maybe it's going T/U. Can't get any closer with the truck and no portable radio to check with. Could the NIC in this meter cause the interference I'm seeing? |
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Posted: 6/20/2022 1:29:53 PM EDT
[#14]
Quoted: I'm not even sure I've got a portable AM radio anymore As cheap as small AM/FM battery operated radios are, it completely boggles my mind that so many people don't have at least one. They're only a few dollars. Hell, I'll bet even some of the preppers with their ChiCom Bing-o-phoom HTs don't have them. I don't even know how many I have, a couple of them even dating back to the '50s, and they still work. |
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Posted: 6/20/2022 6:52:05 PM EDT
[#15]
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Posted: 6/21/2022 1:49:10 PM EDT
[#16]
Quote HistoryQuoted: Might be a grow light.... Ha so true! I used to drive by an old large house that had the attic windows covered with black plastic inside. My AM radio in the car would span out until I was a few hundred yards down the road. After the guy that lived there died of a heart attack I heard my suspicions were right. Grow lights and pot plants. |
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Posted: 6/21/2022 1:52:08 PM EDT
[#17]
Quote HistoryQuoted: Used the AM radio in the truck to listen for any interference when I came home from work this morning. Other than the powerlines as I passed under them, I didn't hear much of anything in the area. And nothing at all from the driveway where I park. I'm wondering if it's this thing. It's at the other end of the building and only about 15' from the Butternut antenna. https://i.imgur.com/AEObzqw.jpg Grant PUD installed it a few years ago. AFAIK, it's never been a problem before, and I don't know that it even could be the issue, but maybe it's going T/U. Can't get any closer with the truck and no portable radio to check with. Could the NIC in this meter cause the interference I'm seeing? Veeder Root gas pump monitor network systems would absolutely block a band in the VHF gov section, police car radios were absolutely jammed in the gas station parking lot if the freq was close to the Veeder Root computer talking to the pumps. |
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Posted: 6/21/2022 2:44:29 PM EDT
[#18]
This is my go-to emergency radio, a Sangean DT-400W. It costs more than most pocket radios, but it also has the NOAA WX channels. It's rugged, sensitive, and has a speaker. The AM reception compares well to that of a full size AM/FM table radio.
The one downside is that because of its small size, it doesn't have a telescoping antenna for the FM and WX bands. Either headphones or a supplied wire antenna must be plugged into the headphone jack for them to receive. |
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Posted: 6/21/2022 9:28:49 PM EDT
[#19]
Quote HistoryQuoted: I've noticed this suddenly being reported from all over the country on various groups, boards, facebook groups etc... Something has been put into use lately that is causing all this shit. I see it mainly in the 24-26 MHz area with lessening harmonics across all bands. It seems to be focused around the amateur bands. I assume whatever it is uses those ranges because they know nobody at the FCC will care if they trash amateur bands and there's nothing that can be done about it. Quote HistoryQuoted: Quoted: I'm not even sure I've got a portable AM radio anymore I've noticed this suddenly being reported from all over the country on various groups, boards, facebook groups etc... Something has been put into use lately that is causing all this shit. I see it mainly in the 24-26 MHz area with lessening harmonics across all bands. It seems to be focused around the amateur bands. I assume whatever it is uses those ranges because they know nobody at the FCC will care if they trash amateur bands and there's nothing that can be done about it. In this area, there is something really, really strong at 14.230. After doing a lot of driving around and checking things, it appears to be coming from a medical imaging building. The sound it makes reminds me of the last couple of times I've had an MRI. Back during the Great Texas Deep Freeze of 2021, having all the power out in the area was glorious for low-noise ham radio work. 
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Posted: 6/25/2022 7:30:27 PM EDT
[#20]
@planemaker
14.230 used to be slow scan amateur television. If there is a dirty TX around it needs to be fixed. 73, Rob |
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Posted: 8/11/2022 1:37:43 PM EDT
[#21]
Quote HistoryQuoted: Used the AM radio in the truck to listen for any interference when I came home from work this morning. Other than the powerlines as I passed under them, I didn't hear much of anything in the area. And nothing at all from the driveway where I park. I'm wondering if it's this thing. It's at the other end of the building and only about 15' from the Butternut antenna. https://i.imgur.com/AEObzqw.jpg Grant PUD installed it a few years ago. AFAIK, it's never been a problem before, and I don't know that it even could be the issue, but maybe it's going T/U. Can't get any closer with the truck and no portable radio to check with. Could the NIC in this meter cause the interference I'm seeing? Any Chinese folks recently purchased land around you where they could setup a Huawei 5 G antenna to intercept Mil comms traffic? LOL |
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Posted: 8/11/2022 5:43:33 PM EDT
[#22]
Friend of mine is going through the same problem.
He's narrowed it down to a 69kv transmission line. Edit: The line was put in 15 years ago, must be a bad/dirty insulator or something like that. |
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Posted: 8/11/2022 6:15:56 PM EDT
[#23]
What I saw on his screen shots of the 7300 IS NOT power line noise. It may be distributed by the power lines but it is NOT a leaky insulator. It is "something". Could be solar, could be grow lights or could be any switch mode power supply. I had a switch mode power supply go bad and although it worked for many years just fine, when it went south it put out RF from DC to Daylight, and I mean a LOT of it. I know I should have kept it, but I threw it away thinking it would get out of my hands accidently and be plugged in somewhere. I truly think you could have keyed it with a CW key and made "spark" contacts with it. I have never seen so much broadband RFI come out of such a small box.
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Posted: 8/12/2022 10:44:47 AM EDT
[#24]
This was about an hour ago. Interference is from OTH radar in Asia/Asiatic Russia, according to the QSO in progress. Gone now, though.
 eta: I don't think the interference I first posted about has completely disappeared, but it seems to have faded away for the time being. Never did track down where it is/was coming from, but I don't think it was in the immediate area. |
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Posted: 8/12/2022 10:56:46 AM EDT
[#25]
Putin!
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