Before buying a key for this software, we recommend that you download and install the trialware version. It can be downloaded from the author's web site (see below).
The trialware version requires you to enter your Longitude and Latitude every time you start the programme. To get rid of this 'nag', you must register your version. To do so please send us the registration fee, plus you firstname, last name, and callsign (or swl info), and we will return the registration key for you to enter into the programme. There is no need to do a reinstall.
For further information and a link to the latest version, see Erich's website.
We are very grateful to Erich for letting us resell his excellent software. All proceeds from the sale of this software go towards the satellite building fund.