[TowerTalk] Where to get HFTA Software

[Mark Robinson]

What is SRTM . DEMS and DTED


Mark N1UK



>>-----------------------------------------------------------------------
> Well.. I have a set of pre-SRTM CDs with DEMS on 3arcsecond increments 
> (about 90 meters) in 1x1 degree squares.  SRTM is about 3 times better 
> than that if you get the DTED2 files.
> 
> It's pretty easy to plug in a lat/lon and then interpolate into all the 
> squares to generate the profiles.  I've actually got a C-language 
> command line program that does that (and one in VB4.5 as well.. yes, 
> I've had that data around for a while.. )
> 
> The hard part (for me) is integrating it with some sort of webserver. 
> There's a bunch of ways of doing it.  And one could probably dynamically 
> retrieve the SRTM data using cURL or similar.
> 
> It seems like it would be something that Google Earth can do, but I 
> haven't fooled with GE enough to know.
> 
> RadioMobile might be another tool (it can definitely grab the SRTM data 
> automatically), but like everything else, it has a fairly big "first 
> step" on the learning curve.