# A Russian observatory uses a stable 4.625 MHz broadcast carrier as the reference for ionospheric Doppler…

> A Russian observatory uses a stable 4.625 MHz broadcast carrier as the reference for ionospheric Doppler sounding.

Source: https://mysteriesdept.com/mysteries/uvb-76-buzzer/evidence/EVD0CR2JXSP431H/a-russian-observatory-uses-a-stable-4-625-mhz-broadcast  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[UVB-76, "the Buzzer"](https://mysteriesdept.com/mysteries/uvb-76-buzzer)Evidence

Evidence · UVB-76, "the Buzzer"

# A Russian observatory uses a stable 4.625 MHz broadcast carrier as the reference for ionospheric Doppler…

A Russian observatory uses a stable 4.625 MHz broadcast carrier as the reference for ionospheric Doppler sounding.

Suggestive0

## What it bears on 1 answer

[The station sounds the ionosphere, for example to support over-the-horizon radar.](https://mysteriesdept.com/mysteries/uvb-76-buzzer/answers/ANS0CR2JXA22BGN/the-station-sounds-the-ionosphere-for-example-to-support)

Disputed

FOR

## Cite it

```
Mysteries Department. (2026). A Russian observatory uses a stable 4.625 MHz broadcast carrier as the reference for ionospheric Doppler… [Evidence EVD0CR2JXSP431H]. https://mysteriesdept.com/r/EVD0CR2JXSP431H
```

Key

**EVD** 0CR2JXSP431H

Kind

Evidence

Tier

Suggestive

Version

1

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