priyom.org

Slot Machine

Enigma ID XSL

Spectrum image JMSDF Ichihara (spectro)

Name Slot Machine
Frequencies 4152.5, 4231, 4290.5, 6249.5, 6416.5, 6444.5, 8312.5, 8587.5, 8703
Status Active
Voice N/A
Emission mode QPSK 1500 bd
Location 35°26'46"N 140°10'52"E (Ichihara, Japan)
Activity pages

Download audio sample

Known counterpart stations

"Slot Machine" is a common nickname for a one-way communication system of the Japanese Maritime Self-Defense Force in Ichihara. Emits 24/7 on a number of frequencies. The modulation utilized is QPSK, at the speed of 1500 bd. Mostly commonly heard is its idling sequence, made out of several repetitive bit patterns - but occasional traffic is passed.

"Slot Machine" traffic

This modem is in use since 2001.

Recordings by LDO

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