FYI: I received data from 508 planes from 5pm yesterday until 6am this morning. Of those, about 19% were equipped with ADS-B. The rest were sending out altitude: Probably not equipped with ADS-B, else their GNSS were turned off. Note: Altitude provided from the transponders is barometric altitude, not from a GNSS.
So for the Seattle, WA area, ADS-B implementation is around 19% today. By 2020 any plane in the U.S. which flies above 2500' must have either ADS-B 1090 (MHz) out, or ADS-B 978 (MHz) UAT out. The percentage of planes we can track should go up continuously during the next 4 years. Outside the U.S., only the 1090 MHz frequency is used. If flying above 18k inside the U.S. they must also use the 1090 frequency. Overnight I was receiving both frequencies and piping both through the ads-b.pl script and into Xastir. -- Curt, WE7U http://wetnet.net/~we7u http://www.sarguydigital.com _______________________________________________ Xastir mailing list [email protected] http://xastir.org/mailman/listinfo/xastir
