The Channels tab: RPM, temperatures, and sensor data

The Channels tab plots the sensor data your device recorded as traces over time — the layer under every other view in the app. The Traction — g-g card sits at the top; the channel traces follow below it.

What you'll see

• From a MyChron: the engine channels your logger records — RPM, exhaust and water temperatures, and the rest of your sensor set.
• From a RaceBox: its G-force and rotation-rate channels. Device housekeeping such as battery level sits in a collapsed Device section underneath (a MyChron's logger battery and temperature go there too).
• From a GoPro: the camera's accelerometer and gyro channels.
• From a phone recording: no sensor channels — a phone logs GPS only, so you'll see the Traction card and an empty Channels card.

GPS speed isn't plotted here. For speed traces, use Compare, which overlays two laps' speed by distance.

Steps

1. Open a session and go to Channels. Every channel is drawn as its own strip, labelled with its unit and sample rate.
2. Use the window toggle to view the whole Session (lap boundaries marked) or one Lap at a time, picked from the lap dropdown.
3. Drag along the strips to read exact values at any point; the time appears in the card header.

What to look for

• RPM at the apex — catching the engine off its power band at your slowest corner is a classic gearing/line finding.
• Temperatures across the session — watch water and exhaust temps trend over a stint rather than reacting to one reading.
• Speed trace shape — in Compare, V-shaped corners (hard brake, point, power) versus U-shaped (carried speed) show your style against your fast laps.

Good to know

Newer MyChron 6 firmware leaves some channels unlabelled in the session file. LapperSnapper recognises several of them from the logger's known channel layout and marks each one inferred, so you know its name and unit came from the app, not the logger.

For two laps overlaid rather than one lap's raw traces, use Compare laps and read the delta chart.