Were is certainly not only GPS who are involved. Several more sectors are involved in the Electronic War.
And the following unit are a part of it. It is a rather new unit, but not brand new.
в/ч 92626 Pionerskiy, Kaliningrad, unit ”26 IP, KIS” wich use Фазан maybee Фазан-МТС. Fazan is a kind of software for command of satellites. The unit also have hard equipment such as parabols and very large vehicles. The units mission is to disturb or destroy communication satellites such as Milstar and Starlink. This is a part of electronic warfare were both parts try to destroy each others ability to use communication equipment in different sectors.
Of Russias at least 22 units over Russia have 7 Фазан or Фазан-МТС, if not all.
Other types of units are also involved, which has other types of equipment.
One of them is the Mi-8MTP-1. Several of them have been shot down in connextion with the Ukrainan war. At least seven are shot down. They are organised of the the EW brigades (REB) from Vyazma and Bugry, St Petersburg. (Administrative centers. Other base places). The Murmansk-BN vehicles are also used.
Mi-8TP-1 based on Ostrov and Vyazma air bases.
https://www.airliners.net/photo/Russia- ... /6171201/L