The Advanced Stand Alone Prediction System (ASAPS) provides the prediction of sky wave communication system performance in the HF (High Frequency) radio spectrum (1 to 30 MHz) and basic surface wave performance in the medium frequency (300 kHz -3 MHz) and low HF (3-5 MHz) range. It is based on an ionospheric model developed by Space Weather Services and ITU-R/CCIR models.
ASAPS has been purchased by over 3000 customers typically working in support of aviation, defence and emergency services. The ASAPS prediction system is more accurate than other prediction systems because the T index is used to quantify the response of the ionosphere to solar activity. ASAPS predictions are especially accurate when they are driven by real-time T indices for the circuit or region of interest.
The T index provides superior parameterisation of the ionosphere's response to changing solar-geomagnetic conditions than the sunspot number.
Please see T Index FAQ.
ASAPS 7 is a fast, stable release of ASAPS built using Microsoft Visual Studio 2015. ASAPS 7 is compatible with recent versions of the Windows OS including Windows 10. A 32-bit version has been built for customers still using older machines. The design of ASAPS 7 is more functionally efficient and some rarely used features have been removed. These features include low resolution surface wave prediction and the advanced frequency set test algorithms. A minimum of 150 MB of free hard disk space is required to install and run the program.
Please see the software downloads page for details of which platforms are supported by ASAPS.
If you encounter any problems, please contact SWS_Asaps@bom.gov.au
- Video Introduction to ASAPS
- What is new in ASAPS 7?
- What is new in ASAPS 6?
- What is new in ASAPS 5
- History of ASAPS Versions
- Introduction to ASAPS 5 (PDF)
- ASAPS Tutorial (PDF)
- Terminals as a Read Only File
- Table of T-indices
- How to Order
- Software Downloads
For further details, please contact SWS_Asaps@bom.gov.au.