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HE Holt Australia (2).jpg
Frequencies 19.8 kHz
Frequency Range 19.8 kHz - 19.8 kHz
Mode CW
Modulation FSK
Emission Designator
Bandwidth 300 Hz
Location Australia
Short Description Naval Communication Station (NCS) Harold E. Holt. Used jointly by the Australian and United States navies to transmit encrypted orders to submerged submarines in the Pacific.
I/Q Raw Recording
Audio Sample