HF Propagation Tools

Spaceweather.com – See the current conditions including solar wind speed and density, sunspot number, solar flux (sfu), an image of the current auroral oval, planetary K index, interplanetary magnetic field, flare forcasts, and much more.

Reverse Beacon Network – See HF band openings in near-real time. You can see what stations are hearing each other, and even see what stations are hearing you. This system relies on “skimmers” around the world monitoring the HF bands.

PSK Reporter is an amateur radio signal reporting and spotting network and website which allows operators to see where their radio signals are being received

Space Weather Woman – Watch credentialed space weather forcaster Tamitha Mulligan Skov give her take on all things sun!  Fascinating!

Listen to Software Defined Radio receivers – Tap into a lengthy list of SDR radios around the world that YOU can control to listen for signals, even YOUR signal.

VOCAP (Voice of America Coverage Analysis Program) – A free professional high-frequency (HF) propagation prediction software from NTIA/ITS, originally developed for Voice of America (VOA).