MyChron Data Logging Rates & Sampling Guide
AiM MyChron Data Logging Rates & Sampling Guide
This guide explains how data logging rates work on the AiM MyChron 5 and MyChron 6, how sampling frequency affects accuracy, and which settings you should use for kart racing in New Zealand and Australia.
1. What is data logging frequency?
Logging frequency (Hz) is how many times per second the MyChron records a data channel.
- 1 Hz = 1 sample per second
- 10 Hz = 10 samples per second
- 50 Hz = 50 samples per second
- 1000 Hz = 1000 samples per second (MyChron 6 only)
Higher frequency = more detail, smoother graphs, and better analysis.
2. MyChron 5 vs MyChron 6 logging capability
| Channel | MyChron 5 | MyChron 6 |
|---|---|---|
| RPM | 20–50 Hz | 100–1000 Hz |
| GPS | 10 Hz | 25 Hz |
| Temperature | 5–10 Hz | 10–20 Hz |
| Brake Pressure | 20–50 Hz | 100–200 Hz |
| Throttle Position | 20–50 Hz | 100–200 Hz |
| Steering Angle | 20–50 Hz | 100–200 Hz |
3. Why logging rate matters
Higher sampling rates give more accurate data, especially for fast‑changing signals like:
- Brake pressure
- Throttle position
- Steering angle
- RPM spikes
Low sampling rates can hide mistakes or make graphs look jagged or incomplete.
4. Recommended logging rates (NZ & AU karting)
These settings provide the best balance of accuracy and memory usage.
MyChron 6
- RPM: 200–500 Hz
- GPS: 25 Hz
- Brake Pressure: 100–200 Hz
- TPS: 100–200 Hz
- Steering Angle: 100–200 Hz
- Temperature: 10–20 Hz
MyChron 5
- RPM: 20–50 Hz
- GPS: 10 Hz
- Brake Pressure: 20–50 Hz
- TPS: 20–50 Hz
- Steering Angle: 20–50 Hz
- Temperature: 5–10 Hz
5. How logging rate affects memory
Higher logging rates use more memory. Example (MyChron 6):
| Logging Rate | Approx. Session Length |
|---|---|
| Low (10–20 Hz) | 6–8 hours |
| Medium (50–100 Hz) | 3–4 hours |
| High (200–500 Hz) | 1–2 hours |
6. Choosing the right logging rate
Choose based on what you want to analyse:
For driver coaching
- Speed
- GPS line
- Delta
→ Medium logging rates are enough.
For kart setup
- Brake pressure
- Steering angle
- G‑force
→ High logging rates recommended.
For engine tuning
- RPM
- EGT
- CHT
→ Medium to high logging rates.
7. Signs your logging rate is too low
- Jagged graphs
- Missing braking detail
- Flat spots in RPM trace
- GPS line looks blocky
8. Signs your logging rate is too high
- Memory fills too quickly
- Long download times
- Unnecessary detail for your needs