Driftnet Buoy Radio Beacon
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|---|---|
| Frequencies | 1.6 MHz,2.85 MHz,4 MHz,28 MHz |
| Frequency Range | 1.6 MHz - 28 MHz |
| Mode | USB |
| Modulation | OOK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 1 Hz |
| Location | Worldwide |
| Short Description | Driftnet Radio Buoys are extensively used by fishing boats operating in open seas and oceans for collecting long fishing lines or fishing nets, with the assistance of a radio direction finder |
| I/Q Raw Recording | — |
| Audio Sample | |
Driftnet Radio Buoys (DRB) are extensively used by fishing boats operating in open seas and oceans for collecting long fishing lines or fishing nets, with the assistance of a radio direction finder
DRB's use either Morse Code (CWContinuous Wave) or a variety of dots and tones for uniquely identifying them. DRB's have a distinctive trait of long pauses and long preamble tones before transmitting their unique identifier. In addition, there is significant frequency drift that can be seen in some beacons; Driftnet buoys use batteries, so when the battery voltage starts to drop, frequency drift occurs in the transmission.
Samples[edit]
| Standard Buoy Signal | Freq-Drifting Buoy | 11-Dot Buoy |
|---|---|---|
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Video Examples[edit]
Frequencies[edit]
Fishnet beacons are can be found between 1.6 and 4 MHzMegaHertz (MHz) 10^6 Hz, and are most often found in and above the 160-meter amateur radio band. Driftnet buoys are also seen in the 10m band.
Additional Links[edit]
- W8JI NDB and Fish Buoy Beacons
- QSL list of 10m Driftnet Beacons
- Wikipedia Driftnet Buoy Radio Beacons
- IARUMS Region 1 10m Buoys Report
