End of Train Device (EOTD)
From Signal Identification Wiki
 | |
|---|---|
| Frequencies | 452.9375 Hz,457.9375 MHz |
| Frequency Range | 452 Hz - 457.9375 MHz |
| Mode | NFM |
| Modulation | FSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 8 kHz |
| Location | Worldwide |
| Short Description | Transmits train telemetry such as brake status and accidental separation information to the head locomotive. |
| I/Q Raw Recording | — |
| Audio Sample | |
Not to be confused with EOTEnd of Transmission (end-of-transmission).
 |
|
Transmits train telemetry such as brake status and accidental separation information to the head locomotive.
ETD devices monitor functions such as brake line pressure and accidental separation of the train using a motion sensor, functions that were previously monitored by a crew in the caboose. The ETD transmits the data via a telemetry link to the Head-of-Train Device (HTD) in the locomotive.
Due to be replaced by 802.16t in the future.
Characteristics[edit]
Uses 1200 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. FSKFrequency-Shift Keying.
Frequencies[edit]
| Location | Operator | Freq. EOTEnd of Transmission | Freq. HOT | Notes |
|---|---|---|---|---|
| North America | Various | 457.9375 MHzMegaHertz (MHz) 10^6 Hz | 452.9375 MHzMegaHertz (MHz) 10^6 Hz | |
| New Zealand | KiwiRail | 450.2625 MHzMegaHertz (MHz) 10^6 Hz | DPUs are not used in NZ | |
| Australia | Pacific National | 477.7 MHzMegaHertz (MHz) 10^6 Hz | 472.5 MHzMegaHertz (MHz) 10^6 Hz | |
| Australia (VIC & QLD) | Various | 410.7 MHzMegaHertz (MHz) 10^6 Hz | ||
| Australia (Nationwide) | Southern Shorthaul Railroad | 410.7 MHzMegaHertz (MHz) 10^6 Hz | ||
Decoding Software[edit]
- Hobby Level Software
Now on groups.io
- Attention Applicants: You will be sent a brief email questionnaire in order to establish intended use. Please check your spam folder if you don't receive it. ***
