[K3CAL] Path plot for Sunderland tower to Lusby (G0JKN)

[Shawn Donley]

Thanks Nigel,
 
Pretty good guess....the repeater antenna is a Telewave ANT150F6-2 with its base at the 280 ft point on the Sunderland tower.
 
OBTW...  some other useful radio horizon path sites:
 
https://www.ve2dbe.com/rmonline_s.asp
You need to get a user name and password but it's free for amateur radio frequencies.
Experience shows it's overly optimistic for 70cm paths here in Calvert County
 
http://www.heywhatsthat.com/
Lot's of capability.  Even shows a panorama of what you would see against the horizon for a viewer location and height above local terrain.
Caution....can be addictive.
 
A while ago I put together some code (MATLAB) that identifies high terrain around a user-supplied set of coordinates.  It finds the peaks, but also shows their "prominence" and "isolation"  (distance to a peak of higher or equal height).  Perfect for finding that optimal DX QTH.  It uses a VERY large digital terrain database the covers most of the world.   Example output attached (a spot on New Creek Mt in West Virginia).
 
If anyone is interested in a run, let me know.  Here in Calvert there's really little point in running since we don't have hills or mountains around here.
 
N3AE
 

> On 12/21/2024 4:39 PM EST Nigel Fenton via K3CAL <k3cal at mailman.qth.net> wrote:
>  
>  
> Just for giggles I re-found this web app for plotting the lay of the land between two points.
> 
> I wasnt sure of the height of the antennas at Sunderland but set it to 100 mtrs(300 foot aprox)
> 
> https://www.scadacore.com/tools/rf-path/rf-line-of-sight/ https://link.getmailspring.com/link/4AD7A790-53F1-47BB-8E01-6452C45BDA01@getmailspring.com/0?redirect=https%3A%2F%2Fwww.scadacore.com%2Ftools%2Frf-path%2Frf-line-of-sight%2F&recipient=azNjYWxAbWFpbG1hbi5xdGgubmV0  the web address.
> 
> 
> Regards Nigel - G0JKN
> Sent from Mailspring https://link.getmailspring.com/link/4AD7A790-53F1-47BB-8E01-6452C45BDA01@getmailspring.com/3?redirect=https%3A%2F%2Fgetmailspring.com%2F&recipient=azNjYWxAbWFpbG1hbi5xdGgubmV0, the best free email app for work
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