RadCom online Propagation Prediction Tools

RadCom online prediction tools

Every month RadCom magazine carries HF propagation predictions to more than 30 locations.

However, these can’t account for stations with high-gain antennas or for radio amateurs using more sensitive modes, such as FT8.

After much discussion it was decided that the only way to accommodate these was to develop an online tool that lets the user select different characteristics that suit their particular station.

There are now two tools available.

The first uses the VOACAP propagation prediction engine, which has been in use for many years. Developed by Jari OH6BG, it lets you specify your location, mode, power and antenna gain for each of the amateur bands.

It then produces coloured charts for each path showing the reliability of a contact on each band. Hovering over a square will give you more information.

You can find the tool at http://www.voacap.com/radcom/

The second tool uses the more recent ITURHFPROP prediction engine and was developed by James M0DNS/HZ1JW. It too lets you select your location, mode, antenna gain and noise level. It then output a coloured chart for each path showing the basic circuit reliability and the expected S level of the signals.

You can also save the charts as a PDF file.

You can find the tool at: https://soundbytes.asia/testproppy/radcom

Both tools will be run in parallel so that we can compare the relative merits of both VOACAP and ITURHFPROP.

Our thanks to both Jari OH6BG and James M0DNS/HZ1JW for their hard work.