JORN – Australia
Jindalee Operational Radar Network JORN is of Australian origin. It mostly comprises of 16 blocks, FMCW-modulated and each separated by a tone of ∼195 milliseconds length at carrier frequency, with the last one measuring to ∼435 milliseconds. The audio clip has been received in USB at -2kHz offset, resulting in a carrier tone 2.036 Hz.
Above you see the blocks with the following sequence of ∼length [milliseconds ms]/frequency [Hz]:
- 618 ms/10,45 Hz
- 667,3 ms/9,66 Hz
- 791,4 ms/8,1 Hz
- 833 ms/7,5 Hz
- 888 ms/7,25 Hz
- 998 ms/6,17 Hz
- 1.230 ms/5,79 Hz
- 1.385 ms/5,22 Hz
- 1.387,6 ms/4,63 Hz
- 1.577,4 ms/4,07 Hz
- 1.847,2 ms/3,47 Hz
- 2.215,9 ms/2,9 Hz
- 2.766 ms/2,3 Hz
- 3.990 ms/1,6 Hz
- 6.296 ms/1,0 Hz
- 15.925,5 ms/0,4 Hz
