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Welcome to my Homepage!


The main reason why I got a homepage is that I have written a program called GcmWin. You can use this program to make Great Circle maps from any location in the world. The program has become quite popular and it is totally free! It is still in an alpha stage and may be lacking some features. You are welcome to download and test it and perhaps give some feedback!

Working on a "collision detection" for plotting text... Serial interface (to show beam heading... difficult) and more...

Latest version 15 November 2009, V3.0.8

Changes from 3.0.6 to 3.0.7... 20 okt 2209

  • A greyline function is implemented. Choose between realtime map that updates every minute and a one shot map.
  • Prefix format has changed. Look at the PrefixNew.dat (Thanks to SM5FQQ, Jan who supplied the updated file!)
  • The line thickness for the compass can be changed!
     

Changes from 3.0.5 to 3.0.6...

  • Now you can plot two different locator files with different colour, hatching and transparency (one for worked and one for confirmed squares..)
  • Plotting now accepts 4 character locators (JP83 or JP83PE are plotted the same way)
     

Other features..

  • Borders, coastlines, rivers, lakes can be added
  • Text and lines can be partly transparent and in the colour of your choice.
  • Freeware
I am a hobby programmer and made the program as a learning excercise.
The program is made with the Codeblocks IDE and MINGW compiler. The framework is WxWidgets.
The original program was written in Visual Basic 3 and is still available on the download pages. It is quite outdated now.

I am an radio amateur since 1973 and like Cw and digital modes like PSK31 and RTTY.

The old website reached 108000 visitors. In this new site you are visitor nr