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What kind of antenna do I need?

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  • What kind of antenna do I need?

    I've been DXing with portable radios for a few years now, but I'm looking at getting a RSPdx SDR. What kind of antenna do I need to get for it? I've got one of those tecsun active loops, but that won't really be enough, will it? My main focus is on the AM band.

  • #2
    For an SDR you'll need a broadband antenna. That means that any kind of a tuned or tuneable loop won't work, since the SDR isn't focused on tuning a single specific frequency. You can use a longwire, or a vertical, or an untuned loop. You should be able to search online for how to build one.
    Russ Edmunds
    15 mi NW Philadelphia, PA
    WB2BJH -- Grid FN20id

    2 ) SDRPlay RSP1a SDRs, Onkyo T450RDS,
    Yamaha T-80 & Conrad RDS Manager;
    Yamaha T-85 & Conrad RDS Manager;
    all w APS9B @ 15'
    Insignia NSHDRAD2 w/ whip.

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    • #3
      If you're going to use the SDR mainly for AM DXing, a long wire, loop, etc would work fine, like Russ said. For my Elad I have an outdoor flag, with the posts 15 feet tall and separated by 45 feet. This is the only antenna I can use here because of noise. It's a very quiet antenna. Build a smaller loop, like a 10x20 or even a 10' square loop and use a ferrite ring where you connect your lead to the antenna itself. That alone will drive down the noise level greatly.
      Mike B.
      Enfield, CT
      -72° 30' W/41° 59' N
      FN31RX

      Online since 1999 and still going at
      mikesdx.com

      Archives: The Original Mike's TV/FM Page with Tuner Mods and Lots of Old Stuff

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