PropNow HF Propagation

Real-Time HF Propagation

Free · In‑App Purchases

Know which HF bands are open before you key up — real-time propagation, solar data, path planning, and gray-line timing for POTA, DX, and contesting. PropNow tells you which HF bands are open right now — and which one to use for the contact you want to make. Built for amateur radio operators, PropNow combines live space-weather data with real-time FT8/FT4 activity for an honest, at-a-glance read on HF propagation — whether you're chasing DX, activating a park, or working a contest. WHAT YOU GET • Real-time conditions for every HF band, 160m through 6m — rated Excellent to Dead, with live spot activity from PSKReporter • Solar dashboard — Solar Flux Index, K-index, A-index, and estimated MUF, updated continuously from NOAA's Space Weather Prediction Center • Space-weather alerts — get notified when the K-index spikes, an X-class flare hits, or a band suddenly opens • Geomagnetic storm and solar flare banners — see at a glance when conditions are disturbed and which bands are affected • Grid-square filtering — scope activity to your location, so a 10m opening across the country doesn't read as "hot" when nobody near you can hear it • Band detail — MUF margin, skip-zone distance, D-layer absorption warnings, Sporadic-E detection, and the farthest station heard on each band • Gray Line map — the day/night terminator and your distance to it, for that prime gray-line DX window PATH PLANNER (Premium) Plan a specific contact. Enter any destination grid square and PropNow computes the great-circle path — distance, bearing, hop count, midpoint day/night, and foF2 — then ranks every band for that exact path and names the best one to try. ANTENNA PROFILES (Premium) Save your station's antennas once and get path-specific recommendations — including the heading to point a rotatable beam — every time you plan a contact. MADE FOR THE FIELD Designed for POTA, SOTA, DX, and contesting — fast to read, dark by default, and fully accessible with VoiceOver, Dynamic Type, and Increase Contrast support. DATA SOURCES • NOAA Space Weather Prediction Center (solar and geomagnetic data) • PSKReporter (live FT8/FT4 spot activity) • kc2g ionosonde network (real-time foF2) No account required. An internet connection is needed to fetch live propagation data. PropNow is free to use; a one-time Premium unlock adds the Path Planner and Antenna Profiles. 73!

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    Information

    Seller
    OpenSquelch Software LLC
    Size
    5.9 MB
    Category
    Reference
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 OpenSquelch Software LLC
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