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☀ Solar
SFI 121
SN 99
A 11
K 2 Quiet
X-Ray B8.5
Wind 422.6 km/s
Aurora 3
Updated 13:30 UTC HamQSL · N0NBH
Day 80/40m Fair 30/20m Good 17/15m Fair 12/10m Fair
Night 80/40m Good 30/20m Good 17/15m Fair 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
Band
Mode
Time
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MHz DX Spotter Info
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Ready — select a band to fetch live spots

Satellite Operation

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

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

    Michael Barnes,
    • 1 reply
    • 108 views
    David Kim

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

    Jessica Miller,
    • 1 reply
    • 161 views
    Jessica Miller89

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

    James Thomas,
    • 2 replies
    • 303 views
    James Thomas

  4. AO-91 transponder seems way off frequency today

    Susan Clark,
    • 1 reply
    • 233 views
    Michael Miller90

  5. first time trying AO-73 with a linear transponder — not sure what im doing wrong

    The DXer,
    • 1 reply
    • 102 views
    Steven Taylor

  6. Linear transponder frequency mapping confusion - need help understanding AO-73

    Robert Kowalski,
    • 2 replies
    • 244 views
    QRP Master

  7. first time trying AO-73 with a linear transponder — way harder than i expected

    Amanda Garcia,
    • 1 reply
    • 228 views
    Michael O'Brien

  8. first time trying LEO satellites — doppler is killing me

    Rachel Martinez,
    • 1 reply
    • 130 views
    Daniel Patel

  9. first time trying linear transponder on AO-73, totally lost on doppler

    Kevin Park,
    • 1 reply
    • 88 views
    John Anderson78

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