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December 2009
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GcmWin 3.1.0 is out


Posted: December 27th, 2009 under Hamradio, Software.

icepac voacap1 Exciting stuff is happening with this program. I haven't used it in a while, but just a few days ago I checked up on what was going with the program development. For those of you who haven't heard about this program, it's a free Windows program for plotting great circle maps from your location, locator maps, grayline and realtime propagation maps. Read the changelog below:

New version 3.1.0 – 26 December 2009

  • Bugfixes
  • Real time for propagation now works
  • Time got its own tab now. Sets time for both grayline and voacap.

New version 3.0.9 – 5 December 2009

  • Vocap now works in the western and southern hemisphere.
  • Icearea and Voaarea implemented
  • You can set transmitter power and gain in the receive and transmit antennas
  • You can plot color or b/w for the propagation layer
  • In the toolbar you can change band for the propagation layer.
  • The picture you see – is the picture that is saved. (changed from previous version)
  • The "real" time display for the propagation is not redrawing itself. You have to manually click on create map or change band!
  • Since the propagation is made on an hourly basis – 9:30 plotted as 09:00 hours and 09:31 plotted as 10:00…
  • The propagation forecast can only be made every hour (limitation of voacap)
  • If you have used version 3.0.8, please change directory for voacap to "c:\itshfbc" NOT "c:\itshfbc\areadata"

Changes from 3.0.7 to 3.0.8 – 15 November 2009

  • Some bugfixes from 3.0.7
  • Interacts with Voacap (get Voacap here: http://www.voacap.com/ ) This part is buggy and not fully functional, but you are welcome to try it out!
  • More precise sun position (formulas from here: http://stjarnhimlen.se/comp/ppcomp.html#5 )

Changes from 3.0.6 to 3.0.7…

  • 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

Download the program here.



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