Supported Spektrum transmitters and sensors
TLMscope reads the .TLM telemetry logs that Spektrum transmitters save. This is what works today, what has been tested and what is not covered.
Transmitters
| Transmitter | Where the logs are | Status |
|---|---|---|
| Spektrum NX6, NX8, NX10 (incl. “+” versions) | Internal storage: Model.TLM and the AutoLog folder. Copy via USB. | Tested (NX8+) |
| Spektrum iX12, iX14, iX20 | Internal storage, copy via USB. | Tested |
| Spektrum DX6 G2/G3, DX7 G2, DX8 G2, DX9, DX10t, DX18 (G2 and later), DX18t, DX20 | SD card, once telemetry logging is on. | Expected to work, not tested yet |
Where to find the files is explained in How to open Spektrum .TLM files.
What you can see, and what it needs
A log only contains what the sensors in your model sent. Missing hardware means missing data, not an error.
| Data | Needs | Status |
|---|---|---|
| Radio link: frame losses, holds, fades, receiver voltage, signal strength | Any Spektrum telemetry receiver (model names ending in “T”) | Tested |
| Motor, controller and BEC: rpm, current, voltage, throttle, temperatures | Spektrum Smart ESC (e.g. Avian) | Tested |
| Battery: cell voltages, temperature, ID, charge cycles, capacity | Spektrum Smart battery, connected through a Smart ESC | Tested |
| Height and climb rate | Vario / altimeter sensor, or a receiver that reports it | Tested |
| Loads (g) and rotation rates | Receiver with AS3X / SAFE | Tested |
| Throttle stick position | Recent NX firmware (AutoLog files) | Tested |
| Stabilization mode | Receiver with AS3X / SAFE | Partly understood |
| Map, distance, speed over ground | Spektrum GPS telemetry sensor | Tested with one real GPS log |
| Other sensors (airspeed, extra current or temperature sensors, …) | X-Bus / SRXL2 sensors | Shown as raw data for now |
Not supported
- EdgeTX / OpenTX logs (CSV, for example RadioMaster, FrSky, ExpressLRS, Crossfire): planned, not available yet.
- Other radio systems with their own log formats (Jeti, Graupner HoTT, Futaba, Multiplex …).
- Flight controller logs (ArduPilot, Betaflight blackbox, iNav).
- Spektrum transmitters that cannot save telemetry logs (for example the DX6i).
- Live telemetry during the flight. TLMscope works with the saved files afterwards.
- Cars and boats (Spektrum surface radios) are not a focus. Their logs may partly work.
Help to widen the support
Logs from NX and iX transmitters have been tested so far. If you fly a DX transmitter, or other Spektrum sensors, a log file helps a lot to check and extend the decoding. Write via the contact in the legal notice or open an issue in the GitHub project. Only share logs you are comfortable sharing: logs with GPS show where you fly.
TLMscope is an independent project and is not made or endorsed by Spektrum or Horizon Hobby.