Good morning from Japan. This is a signal operated by the Self-Defense Forces and is believed to be used as a trunk line for sending data and critical information to the US military and other allies. I've heard stories of people trying to get an official answer as to what it's used for and who operates it, but never get an answer.
My Dad would have loved your channel. He was the one that got me into radio with his JVC boombox, when he first got it we sat around it for hours just going around the shortwave dial. Much Respect!
Yeah. I wish my grandpa was still around so I could share these with him. He got me to get my HAM license at 9 and I renewed every time I could. He always had his scanner running in the background instead of a dreaded TV.
i had to mention this, hey i have one of those jvc boomboxes, i found it curbside a fewyears ago ..that radio got me back into shortwave! your dad was an awesome person and ive never even met the man, but i can promise you that.
listening from the Philippines last year it was very easy to catch the slot machine and like you say at the end of the video it was transmitted on many frequencies simultaneously as well as many different frequencies during the day and night
This is a very common one to pick up down in VK land. Is a good indicator of band conditions since it's signal is so consistent. Great video as always Lewis!
wow thank you for this, i live in japan and have a simple Sony ICF-SW22 radio that i listen to every night and i can hear this between the 4.05 and 4.15MHz. I always wondered what this signal was
Thanks for yet another informative video. I should tell you, as much as I enjoy your content, I find the pictures as much to see as your script is to hear. Continued thanks, and once again, good work
I have actually caught this in the UK before. I was up in the middle of nowhere on the west coast of Scotland with a Tecsun PL880 and about 30ft of wire strung between a tent and a small cliff. It was barely audible, but there! Sometimes I think I can hear it from my QTH in Glasgow with much better antenna and full-size equipment. I might just be kidding myself that I can hear it in the noise though - but now is a good time to try to catch it with the solar conditions we are having
I haven't heard that, but I frequently hear what used to be NSB from Japan on shortwave. I understand some Japanese, so it's a fun listen, even though it was more fun than it was it was now in the eighties
I use this signal to test the LSB mode on my Tecsun PL-660 (built-in whip antenna), since it's a bit strong here in Northern Luzon in the Philippines (using 8705 kHz because it's the strongest). Sometimes I get lucky when I receive the signal in non-idle mode.
As an old bloke that signal is definitely alternating between 300 baud and 1200 baud. I'm in Melbourne and can't pick it up with the radio I have, but like the feller below, Warmpondwater talking about ZX Spectrum...... we had the Australian Microbee ZX80 computers here.....
I was amazed to hear the exact same signal on My radio that i modified for shortwave just by stringing up a long wire antenna in my room getting it high as possible and I think the conditions were right to pick it up.
Anyone wanting to try receive this in UK & Europe can try 6250 kHz & 6417 kHz if conditions allow. I tried today & heard it on 6250 kHz, weak but it was there.
Whats that whole sun spot skip stuff that has you receive a far away signal? If you haven't already made a video on it please do. That sounds really interesting
Sounds like facsimile transmissions. The evenly spaced blips is dots or dashs on the map being transmitted and the longer noises are more solid black areas of lines or emblems that are bigger. Similar to what FAX machines picked up on where the transmitted page is sent one horizontal line at a time. Maritime vessels need weather forecasts.
Sounds like the same noise pattern my iPhone charger makes when the phone is not connected to it , believe it is the switch mode powder supply contained within
Fun fact in japan you wont find a slot machine anywhere as gambling machines that accept actual currency are illegal however if you buy ball bearings and gamble with those you have pachinko a wierd but very real loop hole in the japanese law 😉
It reminds me less of a slot machine than an early-'80s arcade game, or possibly the really spicy phase of a c-spine MRI, but hey, I don't make the rules. :)
