Ten Ninety Versus Nine Seventy-Eight, the Two-Frequency ADS-B System America Built That No One Else Copied
Why the U.S. built ADS-B on two frequencies - 978 MHz and 1090 MHz - and what every pilot must know about traffic coverage.
VectorUAT
The Dual-Link Gamble - Why American ADS-B Runs on Two Frequencies and What Nine Seventy-Eight and Ten Ninety Really Mean for the Traffic on Your Screen
Why U.S. ADS-B runs on two frequencies - 978 MHz UAT and 1090ES - and what that split means for the traffic on your screen.
VectorThe Dual-Link Gamble - Why American ADS-B Runs on Two Frequencies, and the Ghost Targets That TIS-B Was Built to Chase Down
Why US ADS-B uses two frequencies (978 and 1090 MHz), how TIS-B relays traffic between them, and why ghost targets appear.
Vector