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GEOPoint is an easy to use satellite antenna pointing calculator, for geostationary communications satellites. It calculates the azimuth and elevation pointing angles from a given location on the earth towards a specified geostationary satellite. The program also calculates polarisation tilt angles, estimates dates and times of annual sun-outage events, calculates antenna G/T, eirp and frequency stability, and estimates path-loss and rain-attenuation based on ITU-R climate models. As used by Hausfeld Consulting for satellite communications planning.

Basic Features (Free)
After selecting a city on the Major City Selection Tool, the city name will be displayed in brackets above the earth station coordinates on the main dialog. The displayed city name will be cleared if the coordinates are manually edited.
The Map Window now shows the latitude and longitude coordinates to 4 decimal places. This may be convenient for example if the user has entered coordinates on the main window as D,M,S, then he can go to the Map dialog to see them in decimal format.
Advanced Features (requires Registration)
In the User Site Selection tool, the user can now also select site coordinates from GPX or AMG format files. GPX is a common format produced by GPS units and related software. Sites may also be selected from the Maplist format files used by GreatCirc and World1.
If a named city has been selected from the Major City Selection tool, or the User Site Selection tool, then site name will be displayed beside the latitude and longitude coordinates on the GEO Arc.
The Sun, Rain and Summary reports will all include the site name, if a site has been selected using the Major City Selection tool, or the User Site Selection tool.
Axis labelling has been improved when zooming GEO Arc axis scales on a satellite track.
There are new options on the GEO Arc View Menu to save and re-load font preferences, including the colour sheme.
All climate and rain attenuation calculations updated to latest ITU-R Recommendations.
Climate, water vapour, and rain-rate data files updated with the latest ITU-R Climate data.
The Climate tab on the main dialog now includes "Probability of Rain (average year)" as calculated in ITU-R Rec. P.837-6 2012. This value is now also included in the reports.
The Path Loss Estimator dialog, and the rain reports have been modified to include "Cloud Attenuation" as a separate parameter. This component of attenuation (calculated per ITU-R Rec. P.840-4) can be significant for higher frequencies such as Ka band.
The Path Loss Estimator dialog, and the rain reports now also show the Equivalent Worst-Month availability, for the user input annual availability figure (calculated as per ITU-R Rec. P.841-4).
Improved antenna G/T Estimation for frequencies >30GHz.