LDARC AK103 Manual page 6

Receiver Bind
AC900(S-FHSS+D16) bind,transmitter(FRSKY X9D/Futaba T18SZ)
Bind:Check receiver mode before bind,the first blink after power on indicate the setting, is S-FHSS, is D16
FUTABA S-FHSS BIND:Turn on the TX then power on AC900 while pressing the key, green LED fast blink meaning already in bind
mode, user can release the key. Bind procedure is completed and the receiver is working normally when green LED is solid
FRSKY D16(NO Telemetry) BIND:Power on AC900 while pressing the key, green LED fast blink meaning already in bind mode,
user can release the key, then set your TX into D16 bind mode. red LED solid meaning bind finished, exit TX from bind mode,
receiver's green LED solid meaning working normally
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