|Known counterpart stations|
This is a Russian military commandment network. mostly noticeable by its channel marker sending intermittent tone dashes (like the Morse code character "T"). Over the years only very rare messages and test counts have been heard on it. The messages were of the "monolith" format and used the callsign Osnova-48.
On April 4, 2018, it moved from its long time frequency 4524 kHz to 4182 kHz. From July 26 to 30, 2018, as well as from August 30 to September 12, 2018, it temporarily transmitted on 4593 kHz instead, before returning to 4182 kHz.