The FAA is continuing to invest in Mode-S radars (the ASR-11 is replacing
the ASR 7, 8, and 9 units that currently support TIS),



11's are not replacing 9's. They are a stripped down 9.



so an investment in
the airborne component is still a wise move and will be for MANY years.


The FAA is installing new radars but they leave out the software that
supports TIS. That's what happened to us. We had a 7 with mode S and
TIS was operastional. We upgraded the radar to an 11 but they do not
install TIS stuff in the radar.