Japanese Slot Machine (XSL)

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2021-09-23 10:30:04

The Japanese Slot Machine (Enigma Designation XSL) is a simplex system used by the Japanese Maritime Self-Defense Force in Ichihara, Japan. This signal is transmitted from the Japanese Maritime Self-Defense Force Ichihara Transmitting Station (海上自衛隊市原送信所) in Ichihara, Japan. Uses QPSK Quadrature Phase-Shift Keying (2 bits per symbol) at 1500 Bd Baud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. to transmit. Has a very interesting and unique idling format which sounds akin to a slot machine, hence the attributed name. This modem has been active since 2001.

Can be usually found between 3 MHz MegaHertz (MHz) 10^6 Hz and 9 MHz MegaHertz (MHz) 10^6 Hz , sometimes heard up to 10 MHz MegaHertz (MHz) 10^6 Hz . For a list of confirmed frequencies see Mysteries of the Short Wave - Japanese Slot Machine.