Hmmm?

[Swede]

This is strange in a tinfoil hat way.


snip-

DISCLAIMER: I have no association with UVB-76 station, neither do I have any clue what is the content I am relaying. I can only assure, that the signal is received on 4.625MHz AM-modulated 900km NW from supposed origin and retransmitted unaltered. In no way can I guarantee this service, nor be considered responsible of any content re-transmitted. The only purpose for this relay to exist is because lot of people who do not have equipment or are located too far from station seem to be interested about listening to it. Should the UVB-76 station- or transmission content owners feel violated in any way, please contact me at [e-mail] and we will work it out.

http://uvb-76.blogspot.com/2010/08/august-23-2010-935am-pst-voice.html

[tridim]

1. Sounds like a truck horn.

Reading some of the comments. I don't care if this is a hoax, it's still kind of cool.

[MineralMan]

2. Interesting. Looked at with MS Media player in Bars and Waves

Bars mode, it's not a simple signal. Rather than a single frequency, the buzzing sound displays multiple discrete frequencies in a changing pattern. They are, however repeating frequencies. Each pulse may contain from one to eight separate frequency components in the audio range. These are discrete, as you can see in the bars display, which shows the makeup of the tone as separate bars for different frequency components. While it sounds the same, each pulse is different.

It may be an encoded signal, with the different components indicating different parts of an 8 bit byte. I'm not certain, and don't have the facilities to record and analyze the signal.

But, do look at it in MS Media Player with the Bars and Waves background set to bars. You'll see exactly what I mean.