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Please take a look at DX ToolBox which offers the features of Mac GrayLiner, and more, and runs under Mac OS, Mac OS X, and Windows. (NCDXF/IARU beacon support coming in a future version)
Mac GrayLiner displays a map of the entire Earth, showing day, night, and more importantly, the terminator between day and night. Studies have shown that enhanced radio propagation occurs between two points which are both on the day/night terminator.
In addition, the locations of active NCDXF/IARU beacons can be displayed in real time, along with the beacon callsign, country, and location. This should be helpful for identifying DX openings.
Mac GrayLiner requires a Mac with a color display.
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The cost of registering Mac GrayLiner is only $14.99!
Before registering, you should download a copy and make sure it works on your particular configuration.
Mac GrayLiner is only available for Macintosh systems. No Windows version is available.
Awards and Ratings!
TUCOWS.com gives Mac Grayliner 