How to hear The Buzzer (UVB-76) on 4625 kHz

The Buzzer, known in the West as UVB-76 and to Russian listeners as Zhuzhzhalka, has been droning on shortwave for decades. Here is how to hear it yourself.

Where and when

• Frequency: 4625 kHz (4.625 MHz), the 64 m band.
• Mode: upper sideband (USB) works best.
• Best odds for a voice message: weekdays, daytime Moscow time (UTC+3), which is the middle of the night through early morning in the Americas.

No receiver? Use a web SDR

Tune a web SDR in Europe to 4625 kHz USB. The BK99 Buzzer explainer links listening options, and Priyom.org tracks recent messages.

What you are hearing

The best-supported explanation (Priyom.org) is a Russian military command network. The buzz is most likely a channel marker, and the voice messages follow the “Monolith” format. In October 2026 it sent words such as “nepriyatnyy” (“unpleasant”) and once fell silent for seven minutes. If you catch a message, write it down and send it in.