Not sure if you are doing a one-off or working a product. If this is a one-off implementation, Zebra has a product/system that works for this problem.=20 Not sure of the cost to actually deploy. Based on a Zebra device. You can do an FCC-ID search for XWX-UWT1301 https://www.si.com/nfl/2017/11/29/nfl-football-location-tracking-chips-zebr= a -sports-RFID -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of Alan Pearce - UKRI STFC Sent: Tuesday, October 08, 2019 04:50 To: Microcontroller discussion list - Public. Subject: RE: [EE] Locating object position by radio What ??? one of the most famous raids of the war and you haven't seen the movie??? https://www.youtube.com/watch?v=3DE1DCxpMz8aU for a two minute segment of dropping the first bomb, including showing (not very well) the light beam height finding mentioned below. -----Original Message----- From: piclist-bounces@mit.edu On Behalf Of Neil Sent: 08 October 2019 04:48 To: Microcontroller discussion list - Public. Subject: Re: [EE] Locating object position by radio Yes, I expect that (almost) any solution will be implemented from multiple angles and the results correlated. Never saw that movie btw. ;) Cheers, -Neil. On 10/7/2019 7:20 PM, David Van Horn wrote: > One more thought, if you go optical, then multiple sensors with overlapping fields of view (venn diagram) will tell you when the object is in the overlap by hitting all the detectors, similar to the optical sightin= g method in "The Dam Busters" where they had two beams of light that merge to one if the aircraft is at the right altitude. As you get lower, the overla= p area shrinks, allowing for easy localization once you find it at higher altitude. > > -- > David VanHorn > Lead Hardware Engineer > > Backcountry Access, Inc. > 2820 Wilderness Pl, Unit H > Boulder, CO 80301 USA > phone: 303-417-1345 x110 > email: david.vanhorn@backcountryaccess.com > > > -- http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/chang= e your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/chang= e your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .