Old Akro, do some
research* on 1090es and UAT so you can understand the difference. 1090es is a transponder, UAT is not! UAT requires ground transmitters, supplies radar returns as well as ground received 1090es as well as weather information. It operates on 978mhz and only works within range of a ground station. TCAS does not see UAT hence the need to also carry a transponder. A 1090es in or ADS-B Rx receives the extended squitter message regardless of ground station coverage..twice a second..(UAT data is twice a minute.)
* The AirServices article refers to TIS-B in the US 1090ES equipment actually receiving TIS-B (new one on me).
For my
thoughts? I still believe the issue lies in separate CTAF and mandated verbal diarrhea. Also,CTAF does not have a facility to record transmissions.