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Is this power line noise?

Ken Golubski
Ken Golubski Member ✭✭
edited April 2020 in Maestro
I see this everyday now in our new location at this campground. I haven't seen it before.image

Answers

  • Duane_AC5AA
    Duane_AC5AA Member ✭✭✭
    edited March 2020
    Is your, or a neighbor's wash machine running?  Looks similar to PWM driver interference.
  • Ken Golubski
    Ken Golubski Member ✭✭
    edited May 2019
    No.....we are in a more than half empty campground. Nothing at all running in our camper. This same camper at different locations, does not show this. That's why I suspect it has something to do with the location.
    A power transformer is about 900 feet away from us.

  • Ken Golubski
    Ken Golubski Member ✭✭
    edited March 2020
    I should add that this is only between 8Mhz and 5.2 Mhz
  • Ted VE3TRQ
    Ted VE3TRQ Member ✭✭✭
    edited March 2020
    I have a wall wart that makes noise which looks just like that, although a bit fainter. Squirms around a bit and slowly migrates in frequency. Do you have neighboring campers?
  • Ken Golubski
    Ken Golubski Member ✭✭
    edited May 2019
    No neighbors yet. The weather here is still pretty cool and wet.
    BUT....I think you're on to something.....there is a wall wart in the radio cabinet I will move to test. I wish I would have thought of that.

    Thank You !!!


  • Steve WS5W
    Steve WS5W Member ✭✭
    edited April 2020
    I had a switching inverter on my camping trailer that look very much like that.
  • Ken Golubski
    Ken Golubski Member ✭✭
    edited March 2020
    Thanks to all.......it was the wall wart in the radio cabinet. I'm back to being a happy camper :)
    (pun intended).
  • Robert Lonn
    Robert Lonn Member ✭✭
    edited May 2019
    Might be Solar Panels???
  • Craig Williams
    Craig Williams Member ✭✭
    edited May 2019
    I have a bunch of old AC to DC wall wart's. When I find a new one that makes noise I trade it out. Be nice of the FCC enforced it's own rules.
  • N8AUM
    N8AUM Member ✭✭
    edited May 2019
    I have some monitors that radiate something similar. I think its the cheap design of the power supplies, thank you FCC in allowing the cheap Chinese junk to be imported ! I would gladly pay a few pennies more for something that doesn't spew out and radiate garbage ! 
  • Joel Swapp KO6FL
    Joel Swapp KO6FL Member
    edited May 2019
    I gue As I am not literate but what is a wall watt?? I have strange signals on my radio.
  • Duane_AC5AA
    Duane_AC5AA Member ✭✭✭
    edited May 2019
    You know - those little solid state power supplies that plug into the wall to power your 12V or 5V devices - like the charger for your phone, or the AC power supply for your laptop.  Those are wall warts because that's what they resemble.
  • N8AUM
    N8AUM Member ✭✭
    edited May 2019
    remember the good ol days when they did their jobs?

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