F550, APM 2.8, M8N GPS - PosHold mode test

Frame: F550
FC: APM 2.8 with default PID, power module, led and buzzer module, GPS M8N module
Motor: 2212 920kv
Prop: 1045 carbon
ESC: Emax Simonk 30A (BLHeli firmware)
Batt: GE power 3s 5000mAh 30C
Tx, Rx: Flysky FS T6
Mode select by mix chnl5 and 6 on Tx.