Author Topic: "Japanese Slot Machine" 6445 USB 2125 UTC 18 NOV 2017  (Read 375 times)

Skipmuck

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"Japanese Slot Machine" 6445 USB 2125 UTC 18 NOV 2017
« on: November 18, 2017, 2132 UTC »
First time I've heard this! Very distinctive almost musical sound. I looked it up online and apparently it's distinctive enough to have been dubbed the "Japanese Slot Machine"  8) Apparently it's actually a simplex system known as "Enigma Designation XSL" and is used by the Japanese Maritime Self-Defense Force. Always something interesting to find on the shortwave bands!
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MDK2

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Re: "Japanese Slot Machine" 6445 USB 2125 UTC 18 NOV 2017
« Reply #1 on: November 19, 2017, 0015 UTC »
I hear this frequently early mornings at 6250. It's not always on but it was yesterday morning.
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Josh

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Re: "Japanese Slot Machine" 6445 USB 2125 UTC 18 NOV 2017
« Reply #2 on: November 19, 2017, 1834 UTC »
You can attempt to "decode" slot machines (as well as other signals common to hf) with this nifty app;
http://www.saharlow.com/technology/sigmira/

Token

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Re: "Japanese Slot Machine" 6445 USB 2125 UTC 18 NOV 2017
« Reply #3 on: November 21, 2017, 0206 UTC »
I hear this frequently early mornings at 6250. It's not always on but it was yesterday morning.

You may not always hear it, but I have never seen a time it was not on.  Anytime I have ever looked for it I could find it using Asian remotes.  And locally I hear it every morning, on multiple frequencies.

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T!
Mojave Desert, California USA

Looking-Glass

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Re: "Japanese Slot Machine" 6445 USB 2125 UTC 18 NOV 2017
« Reply #4 on: November 26, 2017, 0816 UTC »
The Slot Machine is also on 8.313MHz here as well as 6.445MHz. 

A fellow I chatted with on another DX page supplied the following a couple of years or so back:

Operated by Japanese Maritime Self Defence Force, located at Ichihara, Japan with QPSK at 1,500Bd to transmitter.

They have been around for quite awhile now.  I use them as an Asian propagation indicator.
Mount Piddington, NSW, Australia 3,654 feet ASL (127kms west of Sydney)

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