RE Smart Ant

I have done one of these. The RSSI signal is generally good enough, you will
require some smart logic to "Hunt" for the signal. Check to ensure that the
RSSI has enough range and doesn't flatten out to much at the lower signal
levels. Converting this into an 8 bit value will be more than enough.

Now for the TIPs on controlling the ant, use a stepper drive, as vibration
and wind and that sort of thing will cause the ant to move. Note that it is
difficult to track a fast moving target!
Fade margins will cause trouble ,be ready for these as levels of 100dB per
second can be found.
Ensure that you don't attempt to track to a low level RSSI signal ie. Chose
the lowest level carefully.
Ensure that the RSSI is after all the IF stages, as adjacent channels may
cause you to lock onto a non existent signal

That's about it, you will find out other smaller (Trivial) problems as you
continue.


Dennis


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Dennis Plunkett: Embedded Hardware, Software design
NEC Australia DRMASS
Line Interface cards
TRX software
ISDN interface card
ph 03 9264-3867

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