Using my project sbts-aru. I have a test network of recorders here in the Netherlands with collaborators. At 22:15, around one hour after sunset, so definately dark. Two shots from a shot gun. I didn't hear these, read the message the in morning and can clearly hear them in the recording. But was able to localize to a road intended for walkers and farm travel between fields where a lot of rabbits are, where you can get a quick getaway via multiple escape routes.
Was able to localize, likely to around within 20 meters, with just three recorders. One of the recorders was almost 3km away.
15 August 2024 2:17pm
The main takeaway from this particular localization was that a gunshot was able to be detected considerably further than I previously thought. 2.7km is really far I think for a shotgun in normal built up environment.
Kim Hendrikse