Great, really useful info! Thanks, Manuel.
73, DIZ
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This is a great estimation tool, thanks for making it available. Iāve book marked it.
Iām well aware of the limitations of tools like this, but the āinterestingā shapes it throws up are useful for some awkward summits with limited access options. I can go an investigate in detail using detailed mapping with 5 or 10 metre contour intervals.
Thanks!
Iām off to g/se-007 Crowborough this weekā¦ the whole AZ is basically the town centre of Crowborough. An unusual challenge to find an Activation spotā¦ but others before me have used a little wooded area where I can get out of site.
No doubt if spotted Iāll be reported as a Spy!
73
Gerald
Thanks a lot for this great feature!
Moreover, SOTLAS has now added open entries, like the Activation Zone Estimator for other countries or aprs.fi and similar tools. Like that one can instantly navigate to other useful resources. So cool!
73 Stephan
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Presumably one looking for petrol.
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Amazing!
Thanks for the work, Manuel 
73, Roman
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Hello Manuel @HB9DQM
Thank you very much Useful link and function in sotl.as! Great 
73 Marcel DM3FAM
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We have LIDAR for Crowborough, so can be pretty accurate. Itās complicated though, by higher made-up ground at the reservoirs near the trig. But going by RHoBās definition of the summit I get this contour:
Base map Ā©Crown copyright 2021 Ordnance Survey. Media 018/21
Safe descent!
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I used the wooded area on the north side of the Golf Club visitors carpark. It was several years ago and it was very overgrown then, I had trouble getting an HF dipole up. No idea what itās like in there now
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As mentioned above, Manuel was kind enough to add a link to activation.zone in the āOpenā drop down menu too! (see attached)
In the future, I hope to help Manuel generate high resolution AZ polygons for the US as well. Having this all in sotl.as makes the most sense.
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That makes me wonder if any licensed amateurs live within the activation zone in Crowborough.
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Superb! Diloch!
Thanks for the Intelā¦ I might be stuck with 2m FM. Could be tricky!
Soā¦ if they operated from the garden on battery powerā¦ every chase they made would be a summit to summit??? What an interesting possibility.
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For those interested in hearing more about the backstory, roadmap, etc. behind the Activation Zone Estimator, Ara N6ARA will be presenting during tomorrow eveningās SoCal SOTA meeting on Zoom at 8pm PT (0300 UTC). Ara N6ARA will discuss his experience with creating a web app to estimate and visualize the Activation Zone for all SOTA summits around the world. This talk will cover the story and technical details of how https://activation.zone/ came to be, and future goals of the project looking ahead.
For information about how to join our meetings, please visit SoCalSOTA.com.
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