Two thumbs up for SolarEdge and SEMPower for coming out to fix my RFI issues!

Discussion in 'Ham Radio Discussions' started by KN4DQE, Jun 27, 2019.

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  1. KN4DQE

    KN4DQE Ham Member QRZ Page

    There have been countless articles about solar causing RFI. Mine was no exception. I have a SolarEdge system that uses optimizers. I got this before I got into amateur radio, and it definitely made using the radio during the day impossible.

    I've been working with TJ Simpson from SolarEdge (contact info: tom.simpson@solaredge.com / 510-498-3262). Tom has coordinated ordering LOTS of ferrite, in addition to new SolarEdge optimizers that use spread-spectrum technology to help with reducing the overall RFI.

    They are working on replacing the optimizers and adding the ferrite as I am writing this. The test will come once they are completed! I will post an update and let everyone know how it goes. For those in the central FL area, I can't say enough about SEMPower as well - they have been a fantastic company to deal with!!


    Inked0627190740a_LI.jpg
     
    KU4X, N0TZU, KV6O and 2 others like this.
  2. KP4SX

    KP4SX Premium Subscriber QRZ Page

    Good to hear. Let us know how it all works out.
     
  3. KN4DQE

    KN4DQE Ham Member QRZ Page

    So I didn't take a screenshot of what things looked like before, but the bands looked similar to NK7Z's screenshot seen here (lots of nasty large spikes):
    https://www.nk7z.net/wp-content/uploads/2018/01/Solar-Panel-Noise-Noon-21817.jpg

    I took screenshots of what things looked like after they had the system powered down (what should be considered a baseline):
    20m before:
    20m before.png

    40m before:
    40m Before.png

    And here is after they completed their work:

    20m after:
    20m after.png

    40m after:
    40m after.png

    I still have issues with 2 PoE cameras (that's where all of those thin spikes are coming from). I tried a ton of ferrite on the line near the cameras, but it only marginally helped. Not sure what to try next, but if I can get those tamed, my spectrum is pretty damn good for where I am at.
     
    WA4SIX, N0TZU and KP4SX like this.

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