Driftnet Buoy Radio Beacon

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Driftnet Buoy Radio Beacon
DriftnetBuoyDrift.jpg
Frequencies 1600 kHzKiloHertz (kHz) 10^3 Hz1,600,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
1.6 MHzMegaHertz (MHz) 10^6 Hz
,2850 kHzKiloHertz (kHz) 10^3 Hz2,850,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
2.85 MHzMegaHertz (MHz) 10^6 Hz
,4 MHzMegaHertz (MHz) 10^6 Hz4,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
4,000 kHzKiloHertz (kHz) 10^3 Hz
,28 MHzMegaHertz (MHz) 10^6 Hz28,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
28,000 kHzKiloHertz (kHz) 10^3 Hz
1,600 kHzKiloHertz (kHz) 10^3 Hz
1.6 MHzMegaHertz (MHz) 10^6 Hz
28,000 kHzKiloHertz (kHz) 10^3 Hz
28 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 1.6 MHzMegaHertz (MHz) 10^6 Hz1,600,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
1,600 kHzKiloHertz (kHz) 10^3 Hz
- 28 MHzMegaHertz (MHz) 10^6 Hz28,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
28,000 kHzKiloHertz (kHz) 10^3 Hz
Mode USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables)
Modulation OOKOn-Off Keying Modulation
ACF
Bandwidth 1 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).1.0e-3 kHzKiloHertz (kHz) 10^3 Hz
1.0e-6 MHzMegaHertz (MHz) 10^6 Hz
1.0e-3 kHzKiloHertz (kHz) 10^3 Hz
1.0e-6 MHzMegaHertz (MHz) 10^6 Hz
1.0e-3 kHzKiloHertz (kHz) 10^3 Hz
1.0e-6 MHzMegaHertz (MHz) 10^6 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
DriftnetBuoyStd.jpg
DriftnetBuoyDrift.jpg
DriftnetBuoy11Dots.jpg

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]

Additional Images[edit]