CompuLert
From Signal Identification Wiki
 | |
|---|---|
| Frequencies |
453.375 MHzMegaHertz (MHz) 10^6 Hz453,375,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 453,375 kHzKiloHertz (kHz) 10^3 Hz453,375 kHzKiloHertz (kHz) 10^3 Hz 453.375 MHzMegaHertz (MHz) 10^6 Hz 453,375 kHzKiloHertz (kHz) 10^3 Hz 453.375 MHzMegaHertz (MHz) 10^6 Hz |
| Frequency Range |
453.375 MHzMegaHertz (MHz) 10^6 Hz453,375,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 453,375 kHzKiloHertz (kHz) 10^3 Hz - 453.375 MHzMegaHertz (MHz) 10^6 Hz453,375,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 453,375 kHzKiloHertz (kHz) 10^3 Hz |
| Mode | NFMNarrowband Frequency Modulation |
| Modulation | FSKFrequency-Shift Keying |
| ACFAutoCorrelation Function | — |
| Bandwidth |
5 kHzKiloHertz (kHz) 10^3 Hz5,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 0.005 MHzMegaHertz (MHz) 10^6 Hz 5 kHzKiloHertz (kHz) 10^3 Hz 0.005 MHzMegaHertz (MHz) 10^6 Hz 5 kHzKiloHertz (kHz) 10^3 Hz 0.005 MHzMegaHertz (MHz) 10^6 Hz |
| Location | Worldwide |
| Short Description | Low speed FSKFrequency-Shift Keying telemetry to monitor and control warning sirens that are used to warn the public of threats such as tsunamis, severe weather, chemical spills and civil emergencies. |
| I/Q Raw Recording | — |
| Audio Sample | |
Low speed FSKFrequency-Shift Keying telemetry to monitor and control warning sirens that are used to warn the public of threats such as tsunamis, severe weather, chemical spills and civil emergencies.
Compulert was developed by Alerting Communicators of America (ACA), now named American Signal Corporation (ASC). It is a SCADA-based proprietary FSKFrequency-Shift Keying protocol used to manage and monitor warning sirens in an area.
Samples[edit]
Sample 1: Compulert Telemetry
Sample 2: compulert(prob.) on public safety line
Video Examples[edit]
Additional Links[edit]
- KB9UKD Digital Modes
- Americal Signal Corporation, CompuLert System
- Wikipedia: American Signal Corporation (ASC)
