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PX4 Parameter List

PX4 parameter reference for Precision Land and RTL precision landing.

Precision Land

ParameterDescriptionRangeDefaultUnits
PLD_BTOUTLanding target timeout before target is considered lost.0.0–505.0s
PLD_FAPPR_ALTFinal-approach altitude. Allows vertical approach if target is lost below this height.0.0–10.00.1m
PLD_HACC_RADHorizontal acceptance radius to start descending over the target.0.0–10.00.2m
PLD_MAX_SRCHMaximum number of search attempts if target is lost.0–1003
PLD_SRCH_ALTAltitude above home to climb to when searching.0.0–100.010.0m
PLD_SRCH_TOUTTime allowed to search before falling back to normal landing.0.0–100.010.0s

RTL behavior

ParameterDescriptionValuesDefault
RTL_PLD_MDUse precision landing during RTL landing phase.0 No PL, 1 Opportunistic, 2 Required0