ALPHA Radionavigation System of Russia


Notice in the spectrogram accompanying Omega's last transmissions on 30 Sept. 1997 at 0300z that there is a weak short-beep station transmitting - that is Russian ALPHA. Here is new information (included herein as of 13 Dec. 1997):

VLF Russian ALPHA Radionavigation System (1997)

(Since 1997 - ALPHA has CHANGED - please see text and links below):

Stations:

1) KO - Komosomolskamur (north of Khaborovsk), 50N/137E

2) NO - Novosibirsk (master station, Central Russia), 54N/83E

3) KR - Krasnodar (Black Sea), 45N/38E

Time Schedule: Cycle period 3.6 seconds, 6 time slots at 0.4 sec. duration, 0.2 sec. spacing

Estimated radiated power in wattage 50 kW to 100 kW


Russian ALPHA Radio Navigation Format

Frequency (kHz)time slot 1time slot 2time slot 3time slot 4time slot 5time slot 6
11.905KRKONO NONO--
12.649KOKR------NO
14.881NONO----KR KO


Sources:

Beukers Laboratories, Inc.: VLF and LF for Navigation, Summer 1974, Vol. 21, No. 2

Kerckhoff, Manfred; Bremen, Germany - narrow-band and wide-band receiving observations (Manfred also supplied the article above)

McGreevy, Stephen P.; Lone Pine, California - In-field observations with wide-band receivers

Originally written in Dec. 1997; revised April 2007


Some updated (July 2005) Russian ALPHA Radionavigation information

Russian Alpha Radionavigation System information - updated July 2005:

Google-Earth/bbs.keyhole.com information

Google Earth Community

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Calico_Jack Cartographer

Reged: 07/12/05
Posts: 353
Loc: Missouri Etats-Unis d'Amerique
The Alpha & the Omega (Radio Navigation Stations)
#517059 - 07/18/06 10:07 AM

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Some very large antennas made up the (now) defunct Omega radio navigation system . There were 8 Omega stations around the world. This was a system used prior to GPS and other satellite navigation systems. Some of the antennas still exist and may even be used for other purposes.

The Omega station in Argentina is the most interesting from a Google Earth pictorial standpoint.

For a full explanation of Omega, good old wikipedia tells all:
http://en.wikipedia.org/wiki/Omega_Navigation_System

The Russian Alpha system is apparently still in use. Composed of 5 stations, of which 4 are in Russian and one is in Turkmenestan. The Alpha station in Krasnodar is the most interesting from a Google Earth pictorial standpoint.

For a full explanation of Alpha, good old wikipedia tells some:

http://en.wikipedia.org/wiki/Alpha_(Radio_navigation)

A modest contribution to our body of geographic knowledge.

My source for the locations of the 8 Omega stations is:

http://www.qru.de/beacons2.htm

My source for the locations of the 5 Alpha stations is:

http://www.vlf.it/alphatrond/alpha.htm

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Reged: 01/03/06 Posts: 35 Loc: Budapest
Re: The Alpha & the Omega (Radio Navigation Statio [Re: Calico_Jack]
#689771 - 11/19/06 03:23 AM

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Quick Reply

Here's a 2nd Alpha station at Krasnodarsk.

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Steve_Biker
Tourist

Reged: 01/23/07
Posts: 3

Re: The Alpha & the Omega (Radio Navigation Statio [Re: LeX2]
#772736 - 01/27/07 12:58 PM

Negative. Alfa station near Krasnodar has a different coordinates. You are already mentioned it in the link at www.vlf.it.

Jump to earth.google.com bbs.keyhole.com

end text copy - see link(S) above - S. P. McGreevy - N6NKS


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