Alpha (navigation)

Alpha, also known as RSDN-20, is a Russian system for long range radio navigation. RSDN in Russian stands for Радиотехническая Система Дальней Навигации (radiotehnicheskaya Sistema Dal'ney Navigatsii), which translates to English as "radio-technical long-distance navigation system". Other alternative frequencies are F3p: 14.881091 kHz, F4: 12.090773 kHz, F5: 12.044270 kHz, F6: 12.500000 kHz, F7: 13.281250 kHz, F8: 15.625000 kHz, Fx: 12.700000 kHz. Some transmitters are being disabled as of January 2014. Several remain on the air as of November 2017.

Alpha (navigation)

Alpha, also known as RSDN-20, is a Russian system for long range radio navigation. RSDN in Russian stands for Радиотехническая Система Дальней Навигации (radiotehnicheskaya Sistema Dal'ney Navigatsii), which translates to English as "radio-technical long-distance navigation system". Other alternative frequencies are F3p: 14.881091 kHz, F4: 12.090773 kHz, F5: 12.044270 kHz, F6: 12.500000 kHz, F7: 13.281250 kHz, F8: 15.625000 kHz, Fx: 12.700000 kHz. Some transmitters are being disabled as of January 2014. Several remain on the air as of November 2017.