Have you notice that pattern on 4625 kHz??? : uvb76
The Buzzer Primer - Priyom.org Pages 1 - 18 - Flip PDF Download | FlipHTML5
Mystery Signals
UVB-76 'The Buzzer' 4625 kHz loud and clear at my new QTH on the JRC NRD525 - YouTube
Want to listen to spy broadcasts? Here's how.
Radio MDZhB | Hackaday
UVB-76 "The Buzzer" (4625 kHz) on 5th February, 2020 - YouTube
Has the Internet solved the mystery of this 40-year-old radio signal?
UVB-76 - Wikipedia
Antennas of millitary radio station 4625 SW frequency UVB-76
Priyom.org on Twitter: "The new Buzzer simulcast on 4810 kHz (active since 12:55 UTC yesterday) is broadcast from somewhere near Moscow. It's also much stronger than 4625 kHz in many places.… https://t.co/2699cpbdA0"
Has the Internet solved the mystery of this 40-year-old radio signal?
Bí ẩn đài phát thanh ma hoạt động từ thời Liên Xô - BBC News Tiếng Việt
UVB-76, strange voices on 4625 kHz USB, the Buzzer - YouTube