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Coastal HF RADAR Program

Discussion in 'Amateur Radio News' started by KA0KA, Feb 21, 2019.

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  1. W9MO

    W9MO Premium Subscriber QRZ Page

    CODAR caused a great deal of interference on the USAF MARS HF nets I used to participate in. It's hard to imagine the amount of chaos a 40 watt signal can cause, but that swooshing sound made our voice nets almost unusable. It was a miserable hour trying to hear net control or pass traffic most evenings.
  2. WB5ACT

    WB5ACT Ham Member QRZ Page

    Thanks for the great info. Was picking up signals that looked like that yesterday in the San Antonio. Was working 20 meters and saw this signal just above the ham band range.

    This was captured using a SDRPlay RSP2 radio. Check out my blog on this SDR - spectrum listening activities and configurations at:

    Thanks again and 73, Brian WH2ACT
  3. N1SZ

    N1SZ QRZ Lifetime Member #233 Platinum Subscriber Life Member QRZ Page

    Looks like a U.S. ROTHR signature based on bandwidth and duration.

    Jim, N1SZ
    WA1ZMS likes this.
  4. KC8DE

    KC8DE Ham Member QRZ Page

    This would seem to fit the CODAR signature, except there appears to be a dual signal with one traveling "backwards", unless it's just an artifact of my radio's refresh rate.


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