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Thread: HF Noise

  1. #11
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    Ok, so shutting my house down, and using a handheld radio, I still get the noise.

    Weird thing: It appears to be coming from every power line, cable line, and phone line on my house and the neighbor's. I can hear it when I place the radio close to the power/cable boxes on both my house, and the neighbor's.

    So, what's the next step to hunt this down? Start walking the street, and doing the same on the poles?
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  2. #12
    Pope Carlo l NQ6U's Avatar
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    Quote Originally Posted by KC2UGV View Post
    Ok, so shutting my house down, and using a handheld radio, I still get the noise.

    Weird thing: It appears to be coming from every power line, cable line, and phone line on my house and the neighbor's. I can hear it when I place the radio close to the power/cable boxes on both my house, and the neighbor's.

    So, what's the next step to hunt this down? Start walking the street, and doing the same on the poles?
    Could be something at your neighbor's house. You probably share a pole pig with him and possibly one or two others.
    All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.

  3. #13
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    So, I think I narrowed it down to a house 2 doors away. Before I even consider approaching them, I'm attaching a file of the RFI. Any ideas what it sounds like, so I can offer suggestions, like,"Have you recently installed X in the house?"
    Attached Files Attached Files
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  4. #14
    'Grumpy old bastid' kb2vxa's Avatar
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    A few years ago I had that tick all over the place centered on 50MHz and checking with other stations we discovered it covered a good portion of central and south Jersey coming from the south. I didn't check to see if it was radiating from external wiring though, never did figure it out. Sorry I can't help but you just might like to know you're not the only one receiving the carrier current transmitter of WWV.
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  5. #15
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    Quote Originally Posted by KC2UGV View Post
    So, I think I narrowed it down to a house 2 doors away. Before I even consider approaching them, I'm attaching a file of the RFI. Any ideas what it sounds like, so I can offer suggestions, like,"Have you recently installed X in the house?"
    As an aside, it sounds damned like an electric fence. The problem I'm running into: It's a city lot, so an electric fence is unlikely. So, what other candidates are there other than an electric fence? Does this also sound a doorbell transformer?
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  6. #16
    Orca Whisperer PA5COR's Avatar
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    Sometimes people have electic fences to keep cats from their premisses, or protect birds they hold....do you have someone that has birds there in an ouhose maybe?
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  7. #17
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    Quote Originally Posted by PA5COR View Post
    Sometimes people have electic fences to keep cats from their premisses, or protect birds they hold....do you have someone that has birds there in an ouhose maybe?
    You know, they very well might have an electric fence to keep out cats... We have quite a few ferals here, and lots of people garden.
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  8. #18
    Conch Master KJ3N's Avatar
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    Anybody have a boat with an electric motor? Outside possibility that it's a marine battery charger.
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  9. #19
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    Quote Originally Posted by KJ3N View Post
    Anybody have a boat with an electric motor? Outside possibility that it's a marine battery charger.
    The house very well might. At this point, I'm just collecting ideas of what it may be (Give the audio profile), for when I do approach them.
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  10. #20
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    Just spoke with the neighbor, and I let her know of the problem. I gave her the roughest estimate of where in her house the problem is (Dead center from side-side, and about 10 ft from the front of the house).

    She asked me what to do, and I offered to hunt down the source in their house, but she wasn't very receptive (I even offered the opinion that it sounds like something is arcing, which is problematic for more than one reason to her and her husband). At which point, I left it at that, and offered to help hunt it down in the future when she contacts an electrician.

    Not sure where to go from here. I don't want to alienate a neighbor, but I'd also like to work HF... Maybe re-orienting the antenna is just the best way to go, to try and null out their house?
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