Russian Military News, Reports, Data, etc.

i think this is more of a macro threat-in-being type "weapon" that does better just sitting home doing nothing. it seems to me the idea would be the prospect of infinite flight duration pressures defenders to make exorbitant investments into air defense coverage. you're getting practical effects out of the weapon as long as it's costing you less to build and maintain this credibility than the adversary is spending trying to counter its potential.
credibility is the big problem here though.

Signalers of the Russian 35th Combined Arms Army, Forces Group "East," have begun using SNARK-120R satellite communications stations. The SNARK-120R satellite stations are designed for the rapid establishment of broadband satellite communications in the field. The SNARK mobile communications systems are a completely Russian development. SNARK stations are manufactured by the Race Group of Companies in the Moscow Region.
The SNARK-120R portable satellite communications systems can be set up in 10 minutes and are also used in civilian applications.