Please will someone do this research? Do you know how to find the patents? I will read them if you Email them to me?
I don't think it uses GPS at all. I believe it has to do with the timing or phase of 2 antennas.
After learning more I can see there is only 1 GPS and no magnetic compass.
His is not very accurate when <200m away. What if I could make it work up close? Would this be valuable?
How accurately could I measure distance apart by measuring the time of a radio signal?The PPS pin of GPS has only 10ns jitter. I figure I can measure about 30-300m distance precision with only a TX and RX. Going one way that is, not round trip.