24 April 2018

Russia Is Jamming US Drones Flying Over Syria

By Kyle Mizokami

Russian forces are actively trying to jam U.S. military drones flying over Syria, disrupting flight operations by interfering with the signal broadcast by the worldwide Global Positioning System (GPS). The jamming is “seriously affecting” U.S. drone operations, but it’s not yet clear how serious the Russian meddling really is. NBC News, citing four sources inside the Pentagon, reports that the jamming began weeks ago. It started shortly after suspected chemical attacks by the Syrian regime in the rebel-held Ghouta region. Russian forces were reportedly concerned that the U.S. military would retaliate for the use of chemical weapons and jammed drones to prevent U.S. forces gathering information.

According to the report, the jamming equipment was developed by the Russian military and is sophisticated enough to affect even navigation equipment with anti-jam technology and good enough to affect encrypted communications, though encryption only makes it hard to get into the drone’s control systems or sensor output. The Department of Defense declined to comment on whether any drones had crashed as a result of the jamming.

It’s not clear exactly which drones are being impacted, though NBC News claims that it's affecting smaller drones and not MQ-9 Reaper or larger drones. This implies that the jammers, while effective, have a short operating range and that larger drones can simply fly above them. Then again, as Maritime Executive points out, larger drones also have backup inertial navigation systems and are not completely reliant on GPS. The jamming may affect smaller tactical drones such as the RQ-7 Shadow or ScanEagle.

Russian use of jamming in situations short of all-out war would reduce their effectiveness during an actual war, as U.S. and Allied forces study the signals and figure out ways to overcome them and field improved, jam-resistant system. The U.S. Army is already looking to field weapons that don't rely on GPS to achieve pinpoint accuracy. Providing military support to a regime that gases its own people could end up hurting Russia militarily, not to mention politically, in the long run.

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