Jim Palfreyman wrote:
A friend of mine has asked me for a good GPS method to find out where
his chickens are laying eggs.
A GPS tracker comes to mind but some
(http://www.coolest-gadgets.com/20060405/really-cool-portable-gps-tracker)
seem good but expensive.
Does anyone have any cheap (and possibly smaller) alternatives?
Regards,
Jim Palfreyman
Turn the problem on its head and fix a transmitter to each chicken.
One can then use range measurements from several antennas to track the
chickens, just assign a unique PRBS code to each transmitter.
You should be able to do all this with a SDR and some software.
This is likely to be cheaper per chicken than using a GPS tracker.
Bruce
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