I've never done anything like this but I wonder if you could avoid the rotating direction finder and have a non-moving solution. Perhaps with a couple of stations along the perimeter of the field with two directional antennae pointing in somewhat different directions you could interpolate the difference in signal strength to get a bearing from each? Allen -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of RussellMc Sent: Tuesday, October 8, 2019 2:49 AM To: Microcontroller discussion list - Public. Subject: [CAUTION: Failed DKIM Test]Re: [EE] Locating object position by radio > > IF you can tolerate a rotating beacon of looker/listener if can ease the > task. Listeners can be on mobile target and fixed. Results on multiple scans can be compared. Signal will rise to a peak and fall again giving extra information (or less :-).) Scan rate can be quite high. Russell > > --=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 --=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 .