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☀ Solar
SFI 125
SN 85
A 7
K 2 Quiet
X-Ray C1.9
Wind 445.8 km/s
Aurora 2
Updated 00:30 UTC HamQSL · N0NBH
Day 80/40m Fair 30/20m Good 17/15m Good 12/10m Fair
Night 80/40m Good 30/20m Good 17/15m Good 12/10m Poor

Callsign Lookup
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Vanity Call Signs Available
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ⓘ Callsign lookups are in real time via the FCC database. Vanity callsign availability is refreshed daily at 6:00 AM CST. The vanity search may be unavailable for a few minutes during this update.
Live DX spots
Live DX Spots — 70cm via PSKReporter · scroll or pinch to zoom
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SDR Software & Tools

Explore SDR software, waterfall displays, decoding tools, spectrum analysis, and computer-based radio operation.

  1. RTL-SDR vs SDRplay for general listening / HF with upconverter

    Tom Wilson,
    • 1 reply
    • 50 views
    Tom Wilson

  2. GNU Radio 4.0 RC1 released - major improvements for SDR development

    Carlos Santos,
    • 2 replies
    • 244 views
    Rachel Green

  3. SDRplay vs HackRF for general monitoring / sat stuff

    Tom Anderson,
    • 1 reply
    • 38 views
    Emily Davis71

  4. hackrf vs rtlsdr sensitivity question

    Jessica Wilson,
    • 1 reply
    • 142 views
    James Wilson

  5. SDRplay RSP1B vs just sticking with RTL-SDR for HF — worth the upgrade?

    Mark Thomas,
    • 1 reply
    • 20 views
    Mark Thomas

  7. RTL-SDR vs SDRplay for general HF monitoring, worth the price difference?

    Robert Martinez,
    • 1 reply
    • 62 views
    Susan Clark

  8. HackRF One vs RTL-SDR Blog V4 for satellite work - real world comparison

    Angela Davis,
    • 2 replies
    • 173 views
    Sarah Taylor

  9. SDRplay RSP1B vs just sticking with rtl-sdr for HF — worth the upgrade?

    Stephanie Chang,
    • 1 reply
    • 74 views
    Emily Davis

  10. SDRplay RSP1A vs HackRF for general monitoring, worth the price diff?

    Robert Mitchell,
    • 1 reply
    • 69 views
    Robert Mitchell

  11. SDRplay RSP1B vs just sticking with RTL-SDR for general monitoring

    Kenneth Davis,
    • 1 reply
    • 1 view
    Mike Johnson

  13. RTL-SDR vs SDRplay for general HF listening — worth the price difference?

    Amanda Jackson,
    • 1 reply
    • 11 views
    Stephanie Chang

  14. SDRplay RSP1A vs HackRF for general HF monitoring — worth the price difference?

    Jessica Wilson66,
    • 1 reply
    • 45 views
    Nicole Jackson

  15. SDRplay RSP1A vs just sticking with RTL-SDR for general monitoring

    Steven Patel,
    • 1 reply
    • 17 views
    Radio Geek

  16. RTL-SDR v4 DC spike and offset issues with GQRX

    Frank Nakamura,
    • 2 replies
    • 98 views
    Amanda Williams49

  17. SDRplay RSP1A vs just using an RTL-SDR dongle — is it actually worth it

    Rebecca Davis,
    • 1 reply
    • 44 views
    Robert Kim

  19. SDRplay RSPdx vs HackRF for general monitoring / is the price diff worth it

    Repeater King,
    • 1 reply
    • 67 views
    Kevin Brown

  20. SDRplay RSP1A vs just using a cheap RTL-SDR dongle — worth the upgrade?

    Emily Rodriguez,
    • 1 reply
    • 113 views
    Sarah Thompson

  21. RTL-SDR vs SDRplay for general scanning/ham use — worth the price difference?

    Ashley Anderson,
    • 1 reply
    • 106 views
    Ashley Anderson

  22. SDRplay RSP1A vs HackRF for general monitoring — worth the price difference?

    Michael Johnson,
    • 1 reply
    • 41 views
    Jessica Turner

  23. SDRplay RSP1A vs HackRF for general monitoring — worth the price difference?

    Jessica Miller,
    • 1 reply
    • 13 views
    Carlos Mendez

  25. HackRF vs SDRplay RSP1A on VHF/UHF - Reality Check Needed

    Jessica Davis21,
    • 2 replies
    • 138 views
    Bob Wilson

  26. SDRplay RSP1A vs HackRF for general monitoring — worth the price difference?

    Emily Moore,
    • 1 reply
    • 44 views
    John Williams

  27. SDRplay RSP1A Driver Issues with Latest GNU Radio 3.10

    Carlos Mendez,
    • 2 replies
    • 814 views
    HF Hunter

  28. SDRplay RSP1B vs just sticking with RTL-SDR for general HF monitoring

    John Martinez,
    • 1 reply
    • 26 views
    John Martinez

  29. RTL-SDR vs SDRplay for general listening/monitoring — worth the price difference?

    Catherine O'Brien,
    • 1 reply
    • 97 views
    Jennifer Davis

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