AD5Q Propagation Bulletins
(August 1995-January 1999) Although no longer issued, these
bulletins contain many insights into seasonal- and sunspot
level-related propagation variations.
Introduction to HF Radio Propagation Australia's IPS Radio & Space Services
provides a nicely organized overview of HF radio propagation theory.
Images and graphs enhance the presentation.
Near-Real-Time
MUF Map (Solar Terrestrial Dispatch) Offers a wealth of propagation
prediction information, graphically presented, including: Radio
Auroral Zones; MUF contour lines; Grayline. The map is updated every
five minutes.
Realtime
Propagation Monitor By LA7SL, shows important solar,
ionospheric, and geomagnetic information useful in calculating and
predicting present and near future radio-propagation. "DX Summit" DX
spots and propagation bulletins are also provided.
VOACAP Quick Guide by
OH6BGA guide to using VOACAP - a free
professional HF prediction program from NTIA/ITS, originally
developed for Voice of America (VOA)
VE3SUN DX Monitor Windows shareware to organize and
display data from the cluster system; incorporates propagation and
other information and is customizable according to user's
preferences