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☀ Solar
SFI 128
SN 73
A 6
K 2 Quiet
X-Ray B7.0
Wind 391.1 km/s
Aurora 2
Updated 04:30 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

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Live DX spots
Live DX Spots — 70cm via PSKReporter · scroll or pinch to zoom
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Satellite Operation

Discuss amateur radio satellites, portable satellite contacts, antenna tracking, passes, and successful satellite QSOs.

  1. IC-9700 CAT control issues with linear satellite transponders?

    Frank Williams,
    • 2 replies
    • 218 views
    Sarah Johnson

  2. finally tried working SO-50 yesterday, few questions about what i was hearing

    Amanda Moore,
    • 1 reply
    • 99 views
    Amanda Moore

  3. finally tried working AO-73 with linear transponder, few questions

    Michael Williams,
    • 1 reply
    • 114 views
    Amanda Anderson

  4. first time trying LEO satellites and i'm totally lost on the doppler thing

    Sarah Mitchell,
    • 1 reply
    • 80 views
    Mark Johnson

  5. finally tried AO-73 with a handheld yagi, some thoughts

    Karen Johnson,
    • 1 reply
    • 142 views
    Amanda Johnson64

  7. first time trying LEO satellites and i think im doing something wrong with the doppler

    Anna Petrov,
    • 1 reply
    • 93 views
    Jennifer Williams

  8. Understanding Inverting vs Non-Inverting Linear Transponders

    Carlos Santos,
    • 2 replies
    • 184 views
    David Davis

  9. AO-91 doppler shift driving me crazy

    Rebecca Davis,
    • 1 reply
    • 153 views
    QRP Master

  10. first time trying LEO birds with a linear transponder — what am I missing

    Sarah Taylor,
    • 1 reply
    • 136 views
    Steve Anderson

  11. first time trying LEO birds and completely lost on the doppler thing

    Karen Johnson,
    • 1 reply
    • 66 views
    Robert Moore66

  13. Full duplex rig with dual VFO for linear transponders - worth the investment?

    Bob Martinez,
    • 2 replies
    • 1k views
    Tower Climber

  14. first time trying LEO satellites and completely lost on the doppler tuning

    Steve Wilson,
    • 1 reply
    • 54 views
    Steven Taylor

  15. finally tried AO-73 with a handheld yagi, not what i expected

    Ham Fan,
    • 1 reply
    • 107 views
    John Mitchell

  16. Understanding Linear Transponder Power Management - Why Less is More

    Contester,
    • 2 replies
    • 172 views
    Kevin Anderson

  17. first time trying LEO sats with a linear transponder — confused about the doppler thing

    Jennifer Walsh,
    • 1 reply
    • 58 views
    David Rodriguez

  19. first time trying LEO satellites and completely lost on the doppler thing

    Amanda Davis,
    • 1 reply
    • 142 views
    The DXer

  20. first time trying LEO sats with a linear transponder — what am I doing wrong

    Sarah Johnson,
    • 1 reply
    • 89 views
    Jessica Wilson

  21. first time trying linear transponder sats and im confused about the doppler correction

    Emily Rodriguez,
    • 1 reply
    • 55 views
    Emily Rodriguez

  22. first time trying LEO sats with a linear transponder — confused about doppler tuning

    Rebecca Turner,
    • 1 reply
    • 55 views
    Rebecca Turner

  23. finally tried working AO-73 with linear transponder — some questions

    Jessica Wilson,
    • 1 reply
    • 62 views
    Jessica Wilson

  25. Recommendation needed: Best tracking software for multiple linear satellites in 2025

    Mike Rodriguez,
    • 2 replies
    • 625 views
    Mike Rodriguez

  26. first time trying LEO linear transponders and im completely lost on the doppler thing

    Michael Barnes,
    • 1 reply
    • 64 views
    David Kim

  27. finally got AO-73 working but my doppler correction is still a mess

    Jessica Miller,
    • 1 reply
    • 125 views
    Jessica Miller89

  28. SatPC32 vs Gpredict for Linear Transponder Control - Which Handles Doppler Better?

    James Thomas,
    • 2 replies
    • 245 views
    James Thomas

  29. AO-91 transponder seems way off frequency today

    Susan Clark,
    • 1 reply
    • 187 views
    Michael Miller90

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