Chinese 160kHz-wide OTH radar
From Signal Identification Wiki
 | |
|---|---|
| Frequencies | 6 MHz,29 MHz |
| Frequency Range | 6 MHz - 29 MHz |
| Mode | USB |
| Modulation | FMCW |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 160 kHz |
| Location | China |
| Short Description | Chinese OTH radar with wide bandwidth and usually low sweep rate. Little information is available. |
| I/Q Raw Recording | — |
| Audio Sample | |
This OTHOver The Horizon (very long range) radar has been located to China but not much else is known about it. Ham radio organizations have reported it on ham bands, causing interference (QRM). It transmits in FMCW mode, typically with a 160 kHzKiloHertz (kHz) 10^3 Hz wide signal (although up to 360 kHzKiloHertz (kHz) 10^3 Hz is possible), often 10 sweeps/sec but may use other modes. This radar is seldom heard in Europe unlike some other Chinese radars.
Depending on receiver mode this radar can sound like some other radars, but the wide bandwidth should be noticed.
Samples[edit]
WFMWideband Frequency Modulation:Wide USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables):
AMAmplitude Modulation:
Frequencies[edit]
Approximately from 6 - 29 MHzMegaHertz (MHz) 10^6 Hz
- 6.925 MHzMegaHertz (MHz) 10^6 Hz
- 6.942 MHzMegaHertz (MHz) 10^6 Hz
- 6.440 MHzMegaHertz (MHz) 10^6 Hz
- 6.960 MHzMegaHertz (MHz) 10^6 Hz
- 7.066 MHzMegaHertz (MHz) 10^6 Hz
- 7.085 MHzMegaHertz (MHz) 10^6 Hz
- 14.082 MHzMegaHertz (MHz) 10^6 Hz
- 14.264 MHzMegaHertz (MHz) 10^6 Hz
- 14.310 MHzMegaHertz (MHz) 10^6 Hz
- 18.190 MHzMegaHertz (MHz) 10^6 Hz
- 18.210 MHzMegaHertz (MHz) 10^6 Hz
- 21.279 MHzMegaHertz (MHz) 10^6 Hz
- 21.476 MHzMegaHertz (MHz) 10^6 Hz
Video Examples[edit]
Additional Links[edit]
- ARRL: Observations of Over-the-Horizon Radar Interference in Ham Bands Top All Others
- ARRL: Over-the-Horizon Radars Continue to Plague Amateur Bands
- IARU Region 1 monitoring newsletter March/2019
