X-BOSS AC900 V2 0.9g RC Mini Dual-core Receiver Support S-FHSS FRSKY D16 (NO Telemetry)for RC Racing Drone Description: Item name: AC900 Mini Receiver Rate voltage: 4.0~6.0 V Size 10 x 16.5 mm Weight: only 0.9g Perfect fit small racing drone Include high-performance discrete LNA chip Receiver workingdistance 200MS-FHSS mode support 14SG/16SZ/18SZ/18MZ etc.D16 mode support Frsky X9D/X12S etc.STATUS LED: LED of AC900 blink twice then solid when power on, the meaning as follow. First blink (receive mode) Second blink (failsafe mode) Then solid (signal status)S-FHSSFailsafe mode 1 No signal FRSKY D16 Failsafe mode 2 Signal received BIND: check receive mode before bind, the first blink after power on indicate the setting, Red is S-FHSS, Green is D16.S-FHSS BINDFRSKY D16 (NO Telemetry)BINDTurn on the TX then power on AC900 while pressingthe key, green LED fast blink meaning already in bindmode, user can release the key. Bind procedure iscompleted & the receiver is working normally whengreen LED is solid. Power on AC900 while pressing the key, green LED fastblink meaning already in bind mode, user can releasethe key, then set your TX into D16 bind mode. red LEDsolid meaning bind finished, exit TX from bind mode, receivers green LED solid meaning working normally.FAILSAFE: second blink after power on indicate failsafe setting, please make sure failsafe is working correctly!FAILSAFE MODE 1FAILSAFE MODE 2 After 1 second when lost transmitter signal, S.BUSkeep output, Throttle will 988us, all other channel