National Capital Chapter 70 - Ottawa, Canada

Propagation

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- Above display courtesy of Kevin Loch - N3KL and NASA.  Click either status box for details. Click here for interpretation of the status boxes.

 
< This Solar-Terrestrial Data panel, courtesy of Paul Herrman - N0NBH, is being updated continuously to show you current propagation and HF/VHF band conditions. See below for 160m current propagation prediction.
- To display/print tutorial "Understanding HF/VHF/UHF/SHF Propagation by Paul Herrman N0NBH", including how to interpret the Solar-Terrestrial Data chart, click here. For the companion Glossary of Terms click here.  Requires Acrobat Reader click here.
- To display/print a convenient sheet explaining the interpretation of the Solar Data Panel click here
- To display/print tutorial "Understanding Solar Indices by Ken Larson - KJ6RZ", click here. Requires Acrobat Reader click here.
- To display/print tutorial "NM7M's HF Propagation tutorial" click here.Requires Acrobat Reader click here.
- To display the VE3EN "SolarHam.com" web site click here.
- To display NOAA 3-Day Solar & Geophysical Activity Forecast click here.
- To display N4KG on Sunrise/Sunset Enhancement and Grayline Propagation click here
- To display 160m Propagation Prediction Table click here . Scroll down from Table for explanation.
- To display the latest "VHF & Up Tropo Ducting Forecast by William Hepburn" click here
- To display maps of actual contacts in real-time on various bands across Europe, North America, Asia or Worldwide click here.
- To display maps of VHF Propagation, based on actual real-time APRS packet network contacts, click here
- To display "DX Sherlock" maps of real time digital mode contacts on selected bands and modes around the world, click here.
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The following curves compare Solar Flux Index, Sunspot Number, and the 304 Angstrom results from the SEM and EVE detectors. Either of the latter may be a better indicator for HF propagation than SFI.

 

 

 

  Last modified: May 22, 2017