Originally Posted by
cardiomd
Wow, my recurrent nightmare. Wonder if they had TIS, helps with my (glass) plane but obviously no substitute for continuous scan. Hopefully ADS-B takes care of this in 2020.
ADS-B helps now. There are GBTs over nearly the entire US, and they transmit terminal radar data, wx, etc, so as long as there's an xpder, there's a good chance of picking them up, especially in a terminal area. TIS is extremely limited in capability and won't be supported beyond the current installations, but a few years back ADS-B exploded across the US. It'll be nice when each aircraft has an ADS-B transceiver rather than a transponder so the ADS-B units will talk to each other like TCAS, but ADS-B is doing it's thing now. Lots of airliners have integrated ADS-B/TCAS/Xpder units that are a one-in-all now too.