True, was either airplane so equipped?



"Ron Natalie" wrote in message
m...
| Jim Macklin wrote:
| And a transponder just sits there unless it is triggered
by
| the secondary radar. If the ground based radar is inop
or
| intermittent, the transponder just does nothing.
|
| ...or it's triggered by another TCAS unit. TCAS goes
around
| probing transponders independently of the ground
facilities.