Radioteknicheskaya Systema Dalney Navigatsii (RSDN-20)
 | |
|---|---|
| Frequencies | 11.91 kHz,12.09 kHz,12.65 kHz,14.88 kHz,12.04 kHz |
| Frequency Range | 11.91 kHz - 14.88 kHz |
| Mode | CW |
| Modulation | — |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 20 Hz |
| Location | Russia |
| Short Description | RSDN-20, also known as Alpha, is a Russian hyperbolic radio navigation system. Presumed to be used for Russian ships, submarines and aircraft in the northern hemisphere, possibly worldwide. |
| I/Q Raw Recording | — |
| Audio Sample | |
Radioteknicheskaya Sistema Dal'ney Navigatsii, also known as RSDN-20 and with the designation Alpha, is a Russian hyperbolic radio navigation system. Presumed to be used for Russian ships, submarines and aircraft in the northern hemisphere, possibly worldwide. These transmissions are among the lowest-frequency man made transmissions in the world. The Russian name means "Radiotechnical long-range navigation system". The RSDN-20 system is said to have a range of 10000 km and a position error of 2.5 to 7 km.
RSDN-20 transmitters are located in Novosibirsk, Krasnodar, and Khabarovsk in Russia. Two other transmitters exist in Revda and Seyda, but they are no longer operational.
Video Examples[edit]
- ALPHA RSDN 20/Part-2/Revda-test transmitting
- ALPHA RSDN-20 / Part 3/ November 2010
- ALPHA RSDN-20/Part-1/Usually transmitting
- Russian Alpha navigation signals on VLF received in Romania
- Russian VLF Alpha RSDN-20 Navigation System | Signal Phantom
- Alpha (RSDN-20) 14,88 kHz VLF navigation
- RSDN-20/Alpha 11,9 kHz russian navigation
Additional Links[edit]
THE RUSSIAN VLFVery Low Frequency (3-30 kHz) NAVAID SYSTEM, ALPHA, RSDN-20 By Trond JACOBSEN, Halden (NORWAY) [1]
