4 ms·
This reminds me of https://en.wikipedia.org/wiki/UVB-76 https://en.wikipedia.org/wiki/UVB-76 A radio station that emits a horn sound periodically.
by luizfzs 8y ago
This reminds me of https://en.wikipedia.org/wiki/UVB-76 https://en.wikipedia.org/wiki/UVB-76
A radio station that emits a horn sound periodically.