On Wednesday, April 8, 2015 at 2:56:24 PM UTC-4, Darryl Ramm wrote:
Mike Schumann wrote:
On Tuesday, April 7, 2015 at 11:00:15 PM UTC-4, Darryl Ramm wrote:
On Tuesday, April 7, 2015 at 3:37:23 PM UTC-4, Darryl Ramm wrote:
On Tuesday, April 7, 2015 at 10:00:36 AM UTC-7, Andy Blackburn wrote:
On Tuesday, April 7, 2015 at 9:43:26 AM UTC-7, wrote:

Problem: The rest of the world isn't concerned about frequency
congestion and airlines are less than enthusiastic about having to
have both mod existing 1090 transponders and ALSO install a UAT ADS-B
box onboard. Solution: Keep 1090 for aircraft that fly above 18,000
since they are the ones that will encounter the overseas environment.