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YS-S4 Multi-rotor Autopilot User Manual V1.4

18

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SWITCHOFFtheRCT r ansmitterwhilsttheautopilotisstillpoweredon,the‘FlightMode’shouldswitchtodisplay

"ReturnandLand",“Land”or“Autohover”(theseoptionsarethechose nF/SsettingsfromyourPCGCS)the

throttlestickindicatorshouldbeinthemiddleanddisplayedinGREEN.Ifnot,pleasesetupthefail‐safe(F/S)

again.

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

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7.  AdjustmentOutdoors

7.1  GPS/CompassCalibration

WhenusingtheS4V2autopilotforthefirsttime,theGPS/COMPASSmustbecalibratedbeforearmingthe

motors.

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IMPORTANT:

（1）Compasscalibrationdoesnotneedtobedoneeverytimeyouflybutshouldbedonewhencomponentsare

movedoriftheaircraftfliesinunexpectedways,like

incircles,forexample.

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(2)ALWAYScarryoutthiscalibrationoutdoors,farawayfrommetallicobjects(cars,radiotowers,powerlines

etc.).

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Therearetwowaystocalibratethecompass:bySmartphone(withWI‐FImodule)orbyPC.Thereare3stepsto

follow:

1.Levelcalibration

2.Vertical

calibration

3.SaveGPS/COMPASSdata.

Zerotech YS-S4 User Manual

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