Data transmission sound.wav

This recording I'll show you a recording I picked up of a data transmission sound on shortwave radio. The transmission was on 4728.5 kHz. If you go to that channel you'll be able to receive it if it still broadcasting. I haven't checked back on the channel yet but it might still be broadcasting that transmission.
I recorded this using the wideband web SDR, which is software defined radio. This website let you listen to shortwave radio without a radio. You can check the website here: <a href="http://websdr.ewi.utwente.nl:8901/" rel="nofollow">http://websdr.ewi.utwente.nl:8901/</a>
One of the features it has is you can record what you're listening to and then download it. The company of this website is in the Netherlands, and they have a wideband server especially with the internals which you can read. Signal is strong that you can pick up I guess you are stations as well as other places. On this website you can listen from bands like LSB, USB, a.m., FM and stuff like that. I'm not sure exactly how far it could actually travel, but it must be big. Once you go to the website, type in the channel that I just listed in the description. Let me know what you think of it in the comments below.