[TowerTalk] HFTA data files

[Jon Kåre Hellan]

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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