# The station sounds the ionosphere, for example to support over-the-horizon radar.

> Disputed: The station sounds the ionosphere, for example to support over-the-horizon radar.

Source: https://mysteriesdept.com/mysteries/uvb-76-buzzer/answers/ANS0CR2JXA22BGN/the-station-sounds-the-ionosphere-for-example-to-support  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

---

[Questions](https://mysteriesdept.com/questions)[UVB-76, "the Buzzer"](https://mysteriesdept.com/mysteries/uvb-76-buzzer)[What is the Buzzer for?](https://mysteriesdept.com/mysteries/uvb-76-buzzer/questions/QST0CR2JSWP3WDM/what-is-the-buzzer-for)Answer

Answer · UVB-76, "the Buzzer"

# The station sounds the ionosphere, for example to support over-the-horizon radar.

The station sounds the ionosphere, for example to support over-the-horizon radar.

**Disputed** Answers **1** questionPublished0

## Where it stands

**Disputed** One piece of evidence for, one against. It needs two reviews to be accepted.

## What it predicts

- The signal sweeps frequency or carries timing structure suited to range measurement.

## What would rule it out

- A fixed-frequency signal with no sounding structure.

## Evidence 1 for · 1 against

[A Russian observatory uses a stable 4.625 MHz broadcast carrier as the reference for ionospheric Doppler…](https://mysteriesdept.com/mysteries/uvb-76-buzzer/evidence/EVD0CR2JXSP431H/a-russian-observatory-uses-a-stable-4-625-mhz-broadcast)

Suggestive

FOR

[Stupples says ionospheric sounders sound nothing like the Buzzer.](https://mysteriesdept.com/mysteries/uvb-76-buzzer/evidence/EVD0CR2JXHW7F7X/stupples-says-ionospheric-sounders-sound-nothing-like-the)

Supported

AGAINST

## The questions it answers

[What is the Buzzer for?](https://mysteriesdept.com/mysteries/uvb-76-buzzer/questions/QST0CR2JSWP3WDM/what-is-the-buzzer-for)

Most likelyA routine command and alert channel of a Russian military district, sending short coded orders to subordinate…

## Cite it

```
Mysteries Department. (2026). The station sounds the ionosphere, for example to support over-the-horizon radar. [Answer ANS0CR2JXA22BGN]. https://mysteriesdept.com/r/ANS0CR2JXA22BGN
```

Key

**ANS** 0CR2JXA22BGN

Kind

Answer · hypothesis

Origin

Published

Version

1

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

Every record is open data. Take this one as JSON, with its links and its history.

[JSON](https://mysteriesdept.com/api/v1/records/ANS0CR2JXA22BGN)