I read a conspiracy post involving TCAS, and want help understanding the system a little better.
This
http://keithledgerwood.tumblr.com/post/79838944823/did-malaysian-airlines-370-disappear-using-sia68 alleges that MH370 slipped up underneath Barcelona-bound Singapore flight 68 (SIA68) and trailed it over the Stans before dropping off and landing, effectively masking its presence from interrogating ground radars.
The guy says this about MH370 using TCAS to find and intercept SIA68, but SIA68 not being able to detect MH370:
However that system only operates by receiving the transponder information from other planes and displaying it for the pilot. If MH370 was flying without the transponder, it would have been invisible to SIA68.
In addition, the TCAS system onboard MH370 would have enabled the pilot(s) to easily locate and approach SIA68 over the Straits of Malacca as they appeared to have done. The system would have shown them the flight’s direction of travel and the altitude it was traveling which would have enabled them to perfectly time an intercept right behind the other Boeing 777.
Aside from one B777 catching up to another B777 at cruise, does TCAS technology work this way?