How long is the link?  Can you just climb and look with binoculars, or a 
hyperzoom camera?  Does one end have a strobe you can look for?

From: Cameron Crum 
Sent: Tuesday, July 21, 2015 5:51 PM
To: af@afmug.com 
Subject: Re: [AFMUG] NED vs SRTM

I think NED is pretty old data. You might look at the old DEMs in sdts format. 
Those were pretty accurate before srtm came along. You can download them from a 
few different sources, but you would have to know what to do with them or have 
software which could extract the data.  
'
Cameron

On Tue, Jul 21, 2015 at 5:18 PM, Adam Moffett <dmmoff...@gmail.com> wrote:

  If there's a 5 meter discrepancy between USGS National Elevation Data and the 
Shuttle Radar Topography Mission, who would you trust? Would you bet $500 on it?

  In this case, with NED I'll have LOS on a backhaul, and with SRTM I'm in the 
woods.  I'm under the impression that SRTM sometimes gets you treetops rather 
than the ground.  If I'm wrong I have alternate paths, but I'd have to pay for 
a new PCN....so it really is a $500 bet. :)


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