MAVLINKHUD
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Full Parameter PDF

Overview

The DIST parameter group (specifically DIST_MAX) acts as a simple Geofence radius limit for some vehicle types (primarily Rover).

Key Concepts

1. Distance from Home

Limits how far the vehicle can travel from the Home position (Arming location).

  • Action: If the limit is breached, the vehicle typically triggers RTL (Return to Launch) or stops.

Parameter Breakdown

  • DIST_MAX: Maximum allowed distance from Home (meters).
    • 0: Disabled.

Integration Guide

  • Simple Safety: Useful for keeping a rover within RC range without setting up complex polygon fences.

Developer Notes

  • Vehicle: ArduRover.
  • Note: Plane and Copter typically use the full FENCE_ library instead.

DIST_MAX

m
Default 100
Range 1 1000

Follow distance maximum (DIST_MAX)

Description

Safety limit for Follow mode. If the target moves further away than this distance, the aircraft will stop following and typically enter Loiter or RTL to prevent a runaway scenario.

Tuning & Behavior

  • Default Value: 100 m
  • Range: 1 to 1000 m
  • Ensures the aircraft stays within a reasonable radio or visual range of the target.
View Source
Auto Disarm Configuration (DISARM) Distance Minimum (DISTANCE)