The Shuttle Radar Topography Mission made a digital elevation model that
covers most of the world between 60 N and 60 S. It can be found at
http://srtm.csi.cgiar.org/SELECTION/inputCoord.asp. I don't know if
you'll get the file format HFTA expects, though.
For parts of the world not covered by SRTM, e.g. most of Scandinavia,
the model at http://www.viewfinderpanoramas.org/dem3.html can be used.
Regards
LA4RT Jon, Trondheim, Norway
Jim Brown wrote:
> On Fri, 26 Jun 2009 09:56:14 -0700, Jim Brown wrote:
>
>> Luckily lithuanian landscape is quite flat so real terrain data would
>> not be far from flat data. Finally I think GPS also could help me or my
>> friends to find real data.
>
> That certainly makes it easier. I just thought of another way to get
> this data. The program GOOGLE EARTH uses a world wide database of
> satellite photographic and terrain data. The accuracy and level of
> detail of this data varies widely from one location to another, even
> within the same country. Once you find your location, you can use the
> "RULER" function to draw radials and measure their length. You can also
> turn the viewpoint so that you are perpendicular to that line (that is,
> you are looking at the line sideways, and from a low angle) and you will
> see how the terrain goes up and down. And as you move your cursor, there
> is a window at the bottom of the screen that gives the elevation of the
> cursor.
>
> Google Earth is FREE, and is both VERY useful and very interesting. At
> my QTH, you can see my house and my ham shack, even the skylight windows
> on the roof.
>
> 73,
>
> Jim K9YC
>
>
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