"chris" wrote in
oups.com:

On Mar 29, 11:18 pm, Mxsmanic wrote:
Oz Lander writes:
OK, so TCAS reads transponder codes. I thought it was like a radar.

TCAS I (the kind often used on small aircraft) reads Mode C replies
from other transponders and builds a picture of the airspace from
that, with moderate accuracy. TCAS II (the kind mandated on large
aircraft) also listens to other TCAS systems to build a much more
accurate picture of the airspace (if lots of other aircraft are
similarly equipped).

--
Transpose mxsmanic and gmail to reach me by e-mail.

None of the small aircraft I have ever flown has had TCAS.. Are you
sure you got that right ???


It'd be a first if he did.

bertie