HF trading link '350 Hz idle tone'
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| Frequencies | 15.91 MHz,16.018 MHz,16.022 MHz,16.035 MHz,16.054 MHz,9.175 MHz,10.64 MHz,11.113 MHz,12.176 MHz,14.42 MHz,16.275 MHz |
| Frequency Range | 9.175 MHz - 16.275 MHz |
| Mode | AM |
| Modulation | Unknown |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 40 kHz |
| Location | Worldwide |
| Short Description | Believed to be a HF trading link in idle state. Has a 350 Hz tone when demodulated. Resembles a radar. |
| I/Q Raw Recording | Download file |
| Audio Sample | |
This signal is believed to be a high-frequency trading (HFT) link in idle state. It has a 350 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). tone when demodulated, the spectrum consists of lines spaced 350 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). apart, and there is a gap on the center frequency. This signal resembles a radar but some details suggest that it is not, and it has been observed on frequencies that are licensed for HFHigh Frequency (3-30 MHz) trading.
Actual data transmission of this type may not have been observed. If you have a sample or more information, please update.
HFHigh Frequency (3-30 MHz) trading is a form of automated stock trading which uses HFHigh Frequency (3-30 MHz) radio to relay commands between stock exchanges with minimal latency.
Samples[edit]
Showcase sample contains pulse-type interference in the background. The following sample was processed to remove it.Frequencies[edit]
This signal has been observed on the following frequencies:
9175 kHzKiloHertz (kHz) 10^3 Hz
10640 kHzKiloHertz (kHz) 10^3 Hz
11113 kHzKiloHertz (kHz) 10^3 Hz
12176 kHzKiloHertz (kHz) 10^3 Hz
14420 kHzKiloHertz (kHz) 10^3 Hz
15910 kHzKiloHertz (kHz) 10^3 Hz
16018 kHzKiloHertz (kHz) 10^3 Hz
16022 kHzKiloHertz (kHz) 10^3 Hz
16035 kHzKiloHertz (kHz) 10^3 Hz
16054 kHzKiloHertz (kHz) 10^3 Hz
Video Examples[edit]
Additional Links[edit]
- 40 khz wide signal. Any ideas what this is?
- Super hot, super wide. Receivable from dozens of Web receivers
Additional Images[edit]
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