5MHz Propagation Forecasting

concept by G4FKH, code by G7TKI

Welcome to the 5MHz Propagation Forecasting page.

The idea of the page is quite simple, to produce 5MHz forecasts from the 5MHz experiment's database. To produce a forecast merely input the relevant data into the form. More meaningful output will be had (especially when the ionosphere is disturbed) if an input is included for the AP.* Filling in the locator boxes with the required QRA's will enable forecasts for the required path. If a smoothed curve output is desired, click "Smoothing". Click "submit" to begin the forecasting process. Enjoy.

Gwyn Williams, G4FKH


This application uses data from the following sources:

* Use the URL ftp://ftp.swpc.noaa.gov/pub/weekly/27DO.txt to obtain a likely AP figure, the figure to use is under the column "Planetary A index". Or when the ionosphere is disturbed the URL http://www.swpc.noaa.gov/ftpdir/latest/wwv.txt may prove more useful.