MAVLINKHUD

Overview

The PITCH parameter group handles configuration for the Pitch (Tilt) Axis across various vehicle and peripheral types.

Key Concepts

1. Tracker Speed (PITCH_SLEW_TIME)

(Antenna Tracker) This parameter limits the maximum angular velocity of the tilt mechanism.

  • Purpose: Prevents mechanical damage to heavy high-gain antennas by ensuring the servos don't jerk the assembly too violently.
  • Units: Time (seconds) to traverse 180 degrees.

2. Trim (PITCH_TRIM)

(Helicopter) Defines the collective pitch trim value required to maintain hover.

Developer Notes

  • Context: PITCH_SLEW_TIME is specific to AntennaTracker. PITCH_TRIM is common in ArduCopter Heli.

PITCH_SLEW_TIME

s
Default 2
Range 0 20

Antenna Tracker Pitch Slew Time (PITCH_SLEW_TIME)

Description

PITCH_SLEW_TIME acts as a speed governor for the Antenna Tracker's tilt axis.

PITCH_TRIM

deg
Default 0
Range -10 10

Antenna Tracker Pitch Trim (PITCH_TRIM)

Description

PITCH_TRIM allows you to tilt the Antenna Tracker's beam up or down manually.

This is useful if your tracker mount is not perfectly level, or if there is a consistent error in the altitude reported by the drone or the tracker's own sensors. By adding a few degrees of trim, you can center the antenna's signal beam exactly on the drone.

Tuning & Behavior

  • Default: 0.
  • Usage: If you find the signal is strongest when you manually tilt the antenna slightly, enter that offset here so the software can handle it automatically.