WSPR
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| Frequencies | 136 kHz,474.2 kHz,1.8366 MHz,3.5686 MHz,7.0386 MHz,10.1387 MHz,14.0956 MHz,21.0946 MHz,50.293 MHz,70.091 MHz,144.489 MHz,1296.5 MHz,18.1046 MHz,24.9246 MHz,28.1246 MHz,432.3 MHz |
| Frequency Range | 136 kHz - 1296.5 MHz |
| Mode | USB |
| Modulation | MFSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 6 Hz |
| Location | Worldwide |
| Short Description | Weak Signal Propagation Reporter. |
| I/Q Raw Recording | — |
| Audio Sample | |
WSPR (short for Weak Signal Propagation Reporter) is an amateur radio beacon protocol. It is designed to act as an incredibly weak signal beacon, used for examining amateur band conditions. It utilizes 2 minute long transmission times and provides callsign, location, and power information. It is available in WSJT and WSJT-X.
WSPR uses 4-FSKFrequency-Shift Keying modulation with about 6 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). of bandwidth, and is theoretically decodable with signal-to-noise ratio (SNR) down to -31 dBThe decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical quantity, here the strength of a received signal..
Frequencies[edit]
136 kHzKiloHertz (kHz) 10^3 Hz
474.2 kHzKiloHertz (kHz) 10^3 Hz
1.8366 MHzMegaHertz (MHz) 10^6 Hz
3.5686 MHzMegaHertz (MHz) 10^6 Hz
7.0386 MHzMegaHertz (MHz) 10^6 Hz
10.1387 MHzMegaHertz (MHz) 10^6 Hz
14.0956 MHzMegaHertz (MHz) 10^6 Hz
18.1046 MHzMegaHertz (MHz) 10^6 Hz
21.0946 MHzMegaHertz (MHz) 10^6 Hz
24.9246 MHzMegaHertz (MHz) 10^6 Hz
28.1246 MHzMegaHertz (MHz) 10^6 Hz
50.2930 MHzMegaHertz (MHz) 10^6 Hz (Region 2, 3)
70.0910 MHzMegaHertz (MHz) 10^6 Hz (Region 1)
70.1510 MHzMegaHertz (MHz) 10^6 Hz
144.4890 MHzMegaHertz (MHz) 10^6 Hz
432.3000 MHzMegaHertz (MHz) 10^6 Hz
1.2965 GHzGigaHertz (GHz) 10^9 Hz
Samples[edit]
| WSPR recorded directly from WSJT-X |
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Decoding Software[edit]
Additional Links[edit]
Additional Images[edit]
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