Originally Posted by
PerPurumTonantes
A gadget is a self opening bin or a touch sensitive light. TCAS is the ABS on your car or the system that stops trains passing red signals (TPWS if you're interested
).
When our phones have the power of supercomputers there is no technical reason why EVERY aircraft, including UAVs, can't broadcast its position.
That only leaves geese, but even A320s have problems with them.
I'm fully aware of what TCAS is PerPurumTonantes, its superb in a commercial environment within IFR. Its saved my bacon a few times flying down through say certain parts of Africa and a few other less well controlled parts of the planet in my day job - But my view is it has no place in GA.
I've found the Mk1 Eyeball system very reliable for GA VFR that requires zero investment and is by default carried on board every flying machine.