In article ,
"Capt.Doug" wrote:

"Garner Miller" wrote in message Makes sense, but it's incorrect. At
least with the TCAS system I use,
when below about 1500' AGL, the confict resolution mode is disabled for
exactly that reason.

Most older TCAS will activate the RA mode upon rotation.

really? that's a dumb design.

Last month we
had a
TA from a B-767 that had just cleared the runway as we were rotating for
take off. I don't know why it wasn't an RA.

possibly because of the increase in altitude separation.

--
Bob Noel