Welcome to the new FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
If you are having a problem, please check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.

Repeating spikes on 40m only at night.

At night I get these spike signals running across the 40m band. I feel like I should know what's causing it, but, I just don't know. Any advice?  I'm assuming it's something in my house that only runs at night but, I don't' know what it could be. Almost everything in the house is shut off except my room at night.



  • Jon_KF2EJon_KF2E Member ✭✭
    edited July 2018
    It looks like a switching power supply to me. Perhaps something that only gets turned on at night?
  • Ken - NM9PKen - NM9P Member ✭✭
    edited June 23
    My wife’s laptop power supply does this, but only when she is running the computer on the ps.
  • Stan VA7NFStan VA7NF President Surrey Amateur Radio Communications Member ✭✭
    edited June 2018
    Many switching supply options, especially landscape or in-home LED lighting and their ps.
  • edited June 2018
    I have numerous LED lights throughout the house. I can change the ones that are on at night when I'm on the radio and see if it helps.  Thanks!
  • John - K3MAJohn - K3MA Member ✭✭
    edited June 2018
    Try switching off the WNB.  If set too high it sometimes produces similar issues.
  • edited June 2018
    hmmm, never heard of that.  I'll try it.  I do have several LED lights that can be changed back to incandescent for as long as we can still get them. lol  But, I'll certainly try your idea.  Thanks.
  • Pat    KB6YPat KB6Y Member
    edited July 2018
    I have found that my neighbors solar system causes that on mine. They had a company working on it a few weeks ago. When they shut it down for maintenance the spikes immediately went away. You may look at that possibility.
  • Jon_KF2EJon_KF2E Member ✭✭
    edited June 2018
    Seems unlikely that a solar system would be causing his problem at night.

Leave a Comment

Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph. An inline formatting menu will show up when you select text. Hit tab to get into that menu. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.