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Latest News


  • 09 Nov 2011 An improved version of the online VHF-UHF over-the-terrain area prediction tool is now available. It is now possible to make area predictions using digital elevation model data for the entire Earth between geodetic latitudes 60S and 60N. The user can also chose between four different knife edge diffraction models.


  • 17 May 2011 A prediction tool is now online for calculating RF signal pathloss for VHF/UHF(30mHz - 3GHz) systems over a given area.    


  • 19 Apr 2011 New versions of IPS HF prediction software released: ASAPS 6, ASAPS Lite and GWPS 4. ASAPS 6 includes digital HF predictions and real-time T index updates.


  • 14 Oct 2010 IPS has relocated its Mundaring ionospheric observatory in Western Australia to Perth. Data from this ionosonde is now available.    Perth ionosonde operational


  • 09 Apr 2010 IPS tool for the prediction of reliability for single and multi frequency digital HF radio transmission or reception is now available through this link.    


  • 22 Nov 2007 Massive depressions to usable HF frequencies are currently being experienced throughout the Southern Hemisphere. A T-index of -82 was calculated for the Australasian region. The massive reductions in usable HF frequencies relative to those expected for the current time of year and solar cycle are the uncommon result of particularly low levels of ionising radiation combined with a recent major geomagnetic storm. On 20 November geomagnetic and aurora alerts were issued by IPS indicating major geomagnetic activity. Ionospheric depressions


  • 20 Mar 2007 IPS has improved the ionospheric foF2 (vertical MUF) plot with larger graphs for each station, and inclusion of the ionospheric foF1 parameter.


  • 20 Nov 2006 Tonga Hourly HAP charts have been made available on the IPS website. Tonga Hourly HAP charts are based on currently observed ionospheric conditions in the Tonga region, updated hourly. Regions with Hourly HAP availability can be selected from the drop down menu after following this link.    

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