Beta (time signal service)
Beta is a time signal service in Russia that is primarily intended for military use .
The transmitters transmit time information at specified times on the frequency of 25 kHz. In addition, synchronization signals are sent at the frequencies 20.5 kHz, 23 kHz, 25.1 kHz and 25.5 kHz. Occasionally, coded information is also transmitted outside the transmission times of the time information.
The beta time signal service consists of the following transmitters:
| Callsign | Location | Coordinates |
|---|---|---|
| RJH69 | Maladsetschna ( Belarus ) | 54 ° 27 '44.5 " N , 26 ° 46" 9.2 " E |
| RJH77 | Arkhangelsk | 64 ° 21 '37.8 " N , 41 ° 34' 6.6" E |
| RJH63 | Krasnodar | 45 ° 24 '14.1 " N , 38 ° 9' 20.5" E |
| RJH99 | Nizhny Novgorod | 56 ° 10 '14.1 " N , 43 ° 56' 25.2" E |
| RJH66 | Bishkek ( Kyrgyzstan ) | 43 ° 4 ′ 0 ″ N , 73 ° 39 ′ 0 ″ E |
| RAB99 | Khabarovsk | 48 ° 30 '0 " N , 134 ° 52' 0.1" E |
Spectrogram of the signal from RJH63 when transitioning from permanent carrier to F1-B mode
Spectrogram with the end of the continuous carrier signal from RJH77 on 23 kHz
Spectrogram with the end of the continuous carrier signal from RJH77 on 20.5 kHz
