RFI? New RSP1A install with SDRuno

SDRPlay Independent Community Forum Forums General RFI? New RSP1A install with SDRuno

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  • #1655
    Wa5glo
    Participant

    My install seems to work until I turn on PS for radio a MFJ-4035. I tried the only choke have on usb cable. I would appreciate suggestions to save time. Larry

    #1656
    Andy2
    Participant

    It sounds like the MFJ PS is a switch mode type and is not filtered as it should be. External filtering may work but you’ll have to buy several large ferrites to do it. If you know the voltage and current the MFJ requires, you could find an analogue supply instead.

    #1662
    Wa5glo
    Participant

    I did more troubleshooting and found even with the 7300 off when I attached the positive lead I lose my audio. I can turn the power supply on with no problems until I attach the positive lead. The only thing I can think of its to try grounding the pc. It would appear the power supply isn’t the problem. Sure has me scratching my head. This problem was apparently there before I installed the software and just had not seen it.

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