Interoperable Electronic Train Management System (I-ETMS)
From Signal Identification Wiki
 | |
|---|---|
| Frequencies | 219 MHz,222 MHz |
| Frequency Range | 219 MHz - 222 MHz |
| Mode | NFM |
| Modulation | GMSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 2 kHz |
| Location | US |
| Short Description | Transmits train telemetry |
| I/Q Raw Recording | Download file |
| Audio Sample | |
Interoperable Electronic Train Management System (I-ETMS) transmits train telemetry between cars and wayside equipment.
Description[edit]
- This system being used by all 7 class I RRs for FRA required PTC
- And is also being used by commuter lines Metrolink, San Diego North County, likely to be used on TRE (DART) and others
- Equipment supplied by Wabtec, MeteorComm
- Utilizes the 220 MHzMegaHertz (MHz) 10^6 Hz frequency band
- Equipment manufactured by MeteorComm
- Communicates between wayside and Vehicle
Characteristics[edit]
- Protocol Structure is a proprietary “ITCNet”, OSI 7 layer TCP/IPInternet protocol protocol
- Messaging Standard is ITC AAR Standard, Class D messages, Edge Message Protocol (EMP)
- Maximum bit rate is determined by radio (TCP/IPInternet protocol is 10 Mbps)
Frequencies[edit]
I-ETMS in North America operates in the 219 - 222 MHzMegaHertz (MHz) 10^6 Hz frequency band.
Decoding Software[edit]
- Hobby Level Software
- None
Video Examples[edit]
