Report of solar & geophysical activity
Solar Flux reports, Current Alerts and Warnings from NOAA, 27 day forcast from NOAA, charts reflecting the past 7 years Solar cycle summary charts from NOAA
Display a table of last 30 days sunspots reports.
Prepared by the U.S. Dept. of Commerce, NOAA, Space Environment Center
By Ken Larson KJ6RZ, a complete guide to understanding soloar indices and values.
Add Solar-Terrestrial data to your website, by adding a simple html code to your pages by Paul L Herrman
Introduction to troposcatter or tropospheric scatter propagation using the troposphere
Monitors the space weather parameters essential for HF radio, including SSN/SFI, Ap/Kp, X-ray/Proton flux, and Auroral activity. IonoProbe downloads near-real time satellite and ground station data, stores information for future use and displays it in a user-friendly way.
Solar Region Data Current Regions with Sunspots Summary, an useful tool for predictions
VHF, ms, aurora, es, photos, audio, link, soft and more.
Summary, tutorial about the basics of what is a waveguide and the basic waveguide theory.
NOAA / Space Weather Prediction Center, Geomagnetic K-indices and Running A-indices, Local Noon Solar Radio Flux, Daily Solar Indices with SSN
Near Vertical Incidence Sky Wave (NVIS) Propagation, PPT presentation by Marc C. Tarplee, Ph.D. N4UFP
High frequecy and VHF radio propagation data, solar and geomagnetic real-time and historic data, sunspot activity reports, as well as forecasts. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Communications, and Monitoring Times magazines.
Meteor Shower, Aurora, Sporadic-E and Solar Flares detected using Radio Signal Reflection, by Andy Smith, G7IZU. Live waterfall displays from three receivers, live Es propagation maps.
NVIS description at tactical-link.com
Quick reference table on understanding A K SFI indexes and how can be translated in usable frequency opportunities
Solar data with current solar status, forecast and propagation report
Sounds of Space Weather by S. McGreevy, N6NKS
This is a propagation prediction program tailored to the serious contester