Re: Private baby GPS

<<snip >>
A basic (and maybe naive) setup could be to combine RF and audio: your
device-to-track transmits an audio and RF burst at the same time, a few
times per second. These signals are picked up by 3 microphones and a
radio receiver in the field. Calculating the time between the incoming
RF and audio signals should give you enough information for making a 2D
fix of the position.


--
:wq

Hmmm ... nice ! Because ultimately I don't want a returning signal to
measure distance.

Can I ask another, is it possible to detect the angular direction of
the source fo an RF signal with a MEMs device ?



G

.

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