From sensors located on the flight control.

TELEMETRY AND DIGITAL VOICE e RADAR TRACKING TELEMETRY VOICE ONE-WAY DOPPLER EXTRACTION S-BAND e PM UPLINK (32 kbps) * PM DOWNLINK (<2 Mbps + «50 Mbps) * FM DOWNLINK («2 Mbps + «50 Mbps) * FM DOWNLINK TIME-SHARED.