Jim, et al:
I've always used the links provided on the Radio Mobile website to
retrieve SRTM 1 arcsec data. It's been a while since I've retrieved any
data (I have most of the local area here on my hard drive), so I can't
vouch as to whether these links still work or not. Based on the link
URLs, it looks like VE2DBE (the Radio Mobile author) maintains his own
copies of many of the SRTM data products:
http://www.cplus.org/rmw/dataen.html
BTW, it's a bit cumbersome, but you can use Radio Mobile to generate 2-D
terrain profile inputs for HFTA. An more automated scheme for doing this
would be really nice.
73, Mike W4EF...................
On 3/5/2012 3:55 PM, Jim Lux wrote:
> On 3/5/12 12:32 PM, Dick Green WC1M wrote:
>> This sounds terrific, Jim, and will be a huge boon to the amateur radio
>> community.
>>
>> One question: are you proposing to generate .pro files with data out to the
>> full 50-60 miles, or just what HFTA can deal with (5000 meters, I think)?
>>
> Just to what HFTA can deal with..
>
> But rather than try to figure out which tiles to retrieve, you just
> retrieve the one you're in and the surrounding ones. (if you wanted to
> be clever, if your longitude were, say, W118.9, there's no point in
> retrieving the W117 tile, because the boundary line is 60 miles away.
>
> I might think about it, though.. you could have a pretty simple rule..
> if fractional part of west longitude<0.2 then don't retrieve left hand
> neighbor.
> if fractional part of west longitude>0.8, then don't retrieve right
> hand neighbor.
>
> But it gets tricky pretty fast (and harder to test..)
>
>
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