Guides: reading flight logs and tuning your drone

Short practical guides for Betaflight, INAV, ArduPilot and PX4: how to record a log, read it and get rid of vibration, propwash and noise. You can check your own log for free.

• Betaflight Blackbox Setup: Log Rate, Fields, Test Flight

  Which blackbox logging rate to use, which fields to enable on Betaflight 4.x–2025.12, INAV and ArduPilot, and what to fly so the log shows vibration and PIDs.

• How to Read a Blackbox Log: Explorer and Alternatives

  How to read a blackbox log: tools compared, a 7-step manual check, and a real Betaflight log with every finding's numbers and how to verify it in Explorer.

• Betaflight PID Tuning From Blackbox: Read the Step Response

  Read the Betaflight step response in a blackbox log: overshoot, damping, delay. Tell feedforward overshoot from a P/D problem on real logs, with CLI.

• Propwash Fix for Betaflight: Find the Real Cause in the Log

  Measure propwash on clean throttle chops only, then tell idle, filter delay and low D apart. Real log numbers, fixes for Betaflight, INAV, ArduPilot, PX4.

• Hot Motors on Betaflight: Noise and Filter Tuning From Logs

  Why motors come down hot and which filter to touch: raw vs filtered gyro noise, filter delay, motor noise and the PID term behind it (P, D or FF).

• Betaflight RPM Filter and Bidirectional DShot Setup

  Enable the Betaflight RPM filter: bidirectional DShot, Bluejay or AM32 ESCs, motor_poles, rpm_filter_* settings, and proof from eRPM in your log.

• Betaflight Dynamic Notch and Frame Resonance Guide

  Set dyn_notch_count, Q and min/max in Betaflight, tell motor noise from frame resonance in your log, and know when a static gyro notch is the right fix.

• Drone Vibration: Find the Bad Motor or Prop From Your Log

  Which motor or prop shakes your quad: per-motor vibration from a blackbox log, RPM at equal command, bench checks, and look-alikes that aren't vibration.

• INAV Blackbox Analysis: Tune Multirotor PIDs and Filters

  Set up INAV blackbox logging and tune multirotor PIDs and filters from it: GYRO_RAW, logging rate, the mc_* settings and nine real INAV 6–8 logs explained.

• ArduPilot Log Analysis: VIBE, Clipping, Notch and PIDs

  ArduCopter .bin log analysis on real logs: VIBE and clipping, LOG_BITMASK for fast logging, harmonic notch setup, filters, PIDs and when to run AUTOTUNE.

• PX4 ULog Analysis: Vibration, Filters and Rate PIDs

  PX4 .ulg analysis on real 1.12–1.17 logs: SDLOG_PROFILE for raw gyro, resonance and notch, IMU_GYRO_CUTOFF delay, self-oscillation, MC_*RATE_K, failsafe.

• Config check from diff all

  Paste your diff all output — we flag risky and wrong settings without a flight log and give CLI commands.