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Gunamoi Software

 Mapping & Satellite Planning Applications










The following Mapping or Satellite Planning related software can be downloaded here.  All of these programs may be downloaded and the basic features used free of charge.  They contain no ads, or unwanted bundled add-ons.  Some of the programs have extra Pro Features which may be unlocked by purchasing a registration code.  Click on the links below, to get more information about each application and access the downloads.  Please enjoy, and let us know what you think. 

GEOPoint - Satellite Antenna Pointing Calculator - A tool for calculating the antenna pointing angles from an earth station location to any visible geostationary satellite.  This program will be of use to both the professional satellite engineer and the satellite TV and DX enthusiast.  The basic calculator function can be downloaded and used free of charge.  To access the extended plotting, reporting and sun interference prediction portions of the program you will need to register.  Version 3.07 (February 2016).

GreatCirc - Great Circle Geodetic Distance Calculator - A tool for calculating the shortest distance between any two points, given the latitude and longitude, and plotting the great circle path on a world map.  The program will also do the reverse, given a starting point and the initial bearing and distance it will calculate the latitude and longitude at the destination.  GreatCirc will also do a coverage area calculation, and a rhumb line constant bearing calculation.  The program uses the standard WGS84 ellipsoid earth model commonly found on GPS receivers, and a batch mode is available to allow calculation of multiple distances and waypoints along a path and plot them on the world map.  The basic calculator function can be downloaded and used free of charge.  To access the extended batch mode, image save, file exporting, and magnetic azimuth tools you will need to register. Version 2.5 (June 2015)

MapList-Flat - Flat World Map Program - Primarily intended for mapping data produced by other Gunamoi Software applications in MapList (*.maplist) and Map Grid (*.warray) files, this application can also load and display information from standard GPX and KML map information files.  Additional functions include the ability to plot satellite pointing angles (azimuth and elevation) on a map for a satellite located at any latitude, longitude or altitude; as well as the ability to draw multiple circles on the map at a fixed distance from designated centre points.  MapList-Flat can also plot satellite orbit ground tracks from TLE orbit data files.  Version 1.2 (December 2016)

MapList-Globe - World Globe Map Program - Primarily intended for mapping data produced by other Gunamoi Software applications in MapList (*.maplist) and Map Grid (*.warray) files, this application can also load and display information from standard GPX and KML map information files.  Additional functions include the ability to plot satellite pointing angles (azimuth and elevation) on a globe for a satellite located at any latitude, longitude or altitude; as well as the ability to draw multiple coverage circles on the globe at a fixed distance from designated centre points.  MapList-Globe can also plot satellite orbits on the globe from TLE orbit data files.  Version 3.1 (December 2016)

TxPlan - Satellite Transponder Layout Software - A tool intended for the use of professionals, who are involved with the planning of radio and satellite communications systems.  TxPlan is an easy to use program to produce simple carrier frequency layout diagrams.  It can be used to illustrate the layout of transponders on a satellite, or the layout of radio carriers within a frequency band.  Diagrams can be saved as bitmap images for use in reports or presentations.  This program can be downloaded and the basic functions used free of charge.  To access the extended features of the program you will need to register.  Version 3.2 (September 2016)