The Fall and Rise of Russian Digital Warfare

A month into Russia’s invasion, Ukrainian troops stumbled upon a nondescript delivery container at an deserted Russian command submit exterior Kyiv. They didn’t realize it then, however the branch-covered field left by retreating Russian troopers was probably the largest intelligence coup of the younger warfare.

Inside have been the heart of one in all Russia’s most refined digital warfare (EW) techniques, the
Krasukha-4. First fielded in 2014, the Krasukha-4 is a centerpiece of Russia’s strategic EW complement. Designed primarily to jam airborne or satellite-based fireplace management radars within the X- and Oku-bands, the Krasukha-4 Is commonly used alongside the Krasukha-2, which targets lower-frequency S-band search radars. Such radars are used on stalwart U.S. reconnaissance platforms, such because the E-8 Joint Surveillance Goal Assault Radar System (JSTARS) and Airborne Warning and Management System, or AWACS, plane.

And now Ukraine, together with by extension its intelligence companions in NATO, had a Krasukha-4 to dissect and analyze.

That Russian troops would ditch the guts of such a useful EW system was stunning in March, when Moscow was nonetheless making beneficial properties throughout the nation and threatening Kyiv. 5 months into the warfare, it’s now obvious that Russia’s preliminary advance was already faltering when the Krasukha-4 was left by the roadside. With highways round Kyiv clogged by armored columns,
withdrawing items wanted to lighten their load.

The deserted Krasukha-4 was emblematic of the puzzling failure of Russian EW within the first few months of Russia’s invasion. After practically a decade of proudly owning the airwaves throughout a Moscow-backed insurgency in japanese Ukraine, EW was
not decisive when Russia went to warfare in February. The important thing questions now are, why was this so, what’s subsequent for Russian EW on this oddly anachronistic warfare, and the way may it have an effect on the end result?

Not less than three of Russia’s 5 digital warfare brigades are engaged in Ukraine. And with extra publicity to NATO-supplied radios, skilled Russian EW operators who lower their tooth in Syria are starting to detect and degrade Ukrainian communications.

Digital warfare is a pivotal if invisible a part of fashionable warfare. Army forces depend on radios, radars, and infrared detectors to coordinate operations and discover the enemy. They use EW to regulate the spectrum, defending their very own sensing and communications whereas denying entry to the electromagnetic spectrum by enemy troops.

U.S. navy doctrine defines EW as comprising digital assault (EA), digital safety, and digital help. Probably the most acquainted of those is EA, which incorporates jamming, the place a transmitter overpowers or disrupts the waveform of a hostile radar or radio. As an illustration, the Russian
R-330Zh Zhitel jammer can reportedly shut down—inside a radius of tens of kilometers—GPS, satellite tv for pc communications, and cellphone networks within the VHF and UHF bands. Deception can also be a part of EA, by which a system substitutes its personal sign for an anticipated radar or radio transmission. For instance, Russian forces despatched propaganda and pretend orders to troops and civilians throughout the 2014–2022 insurgency in japanese Ukraine by hijacking the native mobile community with the RB-341V Leer-3 system. Utilizing soldier-portable Orlan-10 drones managed by a truck-mounted management system, the Leer-3 can prolong its vary and impression VHF and UHF communications over wider areas.

The Zhitel jamming system can shut down, over tens of kilometers, GPS and satellite tv for pc communications. This picture reveals the bottom of one of many 4 antennas in a typical

The converse of digital assault is digital help (ES), which is used to passively
detect and analyze an opponent’s transmissions. ES is crucial for understanding the potential vulnerabilities of an adversary’s radars or radios. Due to this fact, most Russian EA techniques embrace ES capabilities that enable them to seek out and shortly characterize potential jamming targets. Utilizing their ES capabilities, most EA techniques also can geolocate enemy radio and cellphone transmissions after which move that info on in order that it may be used to direct artillery or rocket fireplace—with typically devastating results.

A number of Russian techniques conduct ES completely; one instance is the
Moskva-1, which is a precision HF/VHF receiver that may use the reflections of TV and radio alerts to conduct passive coherent location or passive radar operations. Principally, the system picks up the radio waves of business TV and radio transmitters in an space, which can mirror off targets like ships or plane. By triangulating amongst a number of units of acquired waves, the goal may be pinpointed with enough accuracy to trace it and, if wanted, shoot at it.

Key Russian Digital Warfare Methods Deployed in Ukraine

Digital Warfare System


First Fielded


1RL257 Krasukha-4 Targets X-band and Ok
u-band radars, significantly on planes, drones, missiles, and low-orbit satellites
2014 Consists of two KamAZ-6350 vans, one a command submit and the opposite outfitted with sensors
1L269 Krasukha-2 Targets S-band radars, significantly on airborne platforms. Typically used paired with the Krasukha-4 2011 Additionally primarily based on two KamAZ-6350 vans
RB-341V Leer-3 Disrupts VHF and UHF communications, together with mobile communications and navy radios, over tons of of kilometers 2015 Consists of a truck-based command submit that works with Orlan-10 drones to increase its vary
RH-330Zh Zhitel Jammer; can shut down GPS and satellite tv for pc communications over a radius of tens of kilometers 2011 Consists of a truck command submit and 4 telescopic-mast phased-array antennas
Murmansk-BN Lengthy-range detection and jamming of HF navy radios 2020 Russian sources declare it may possibly jam communications hundreds of kilometers away
R-934B VHF/UHF jammer that targets wi-fi and wired communications 1996 Consists of both a truck or a tracked automobile and a towed 16-kilowatt generator
SPN-2, 3, 4 X- or Ok
u-band jammers that concentrate on airborne radars and air-to-surface guidance-control radars
(not obtainable) Consists of a combat-control automobile and an antenna automobile
Repellent-1 Antidrone system 2016 Weighs greater than 20 tonnes
Moéskva-1 Precision HF/VHF receiver for passive coherent location of enemy ships and planes 2015 Revealed sources cite a spread of as much as 400 kilometers
Sources: Wikipedia; Army Manufacturing facility;
World Defence Know-how; U.S. Military; Air Energy Australia; U.S. Military Coaching and Doctrine Command; Russian Digital Warfare: The Position of Digital Warfare within the Russian Armed Forces, Jonas Kjellén, Swedish Defence Analysis Company (FOI), 2018; Defence24

Russia makes use of specialised electronic-warfare items to conduct its EA and ES operations. In its
floor forces, devoted EW brigades of a number of hundred troopers are assigned to the 5 Russian navy districts—West, South, North, Central, and East—to help regional EW operations that embrace disrupting enemy surveillance radars and satellite tv for pc communication networks over tons of of kilometers. EW brigades are outfitted with the bigger Krasukha-2 and -4, Leer-3, Moskva-1, and Murmansk-BN techniques (the latter of which detects and jams HF radios). Every Russian military maneuver brigade additionally contains an EW firm of about 100 personnel that’s educated to help native actions inside about 50 kilometers utilizing smaller techniques, just like the R-330Zh Zhitel.

Militaries use digital safety (EP), also referred to as digital countermeasures, to defend in opposition to EA and ES. Lengthy thought of an afterthought by western forces after the Chilly Struggle, EP has risen once more to be maybe a very powerful facet of EW as Russia and China area more and more refined jammers and sensors. EP contains ways and applied sciences to defend radio transmissions from being detected or jammed. Typical strategies embrace utilizing slim beams or lowenergy transmissions, in addition to superior waveforms which might be immune to jamming.

Consultants have lengthy touted Russia as having a number of the most skilled and best-equipped EW items on the planet. So within the early days of the 24 February invasion, analysts anticipated Russian forces to shortly achieve management of, after which dominate, the electromagnetic spectrum. For the reason that annexation of Crimea in 2014, EW has been a key a part of Russian operations within the “grey zone,” the shadowy realm between peace and warfare, within the Donbas area. Utilizing Leer-3 EW automobiles and Orlan-10 drones, Moscow-backed separatists and mercenaries would jam Ukrainian communications and ship propaganda over native mobile-phone networks. When Russian forces have been able to strike, the bottom and airborne techniques would detect Ukrainian radios and goal them with rocket assaults.

However after practically a decade of rehearsals in japanese Ukraine, when
the most recent escalation and invasion started in February, Russian EW was a no-show. Ukrainian defenders didn’t expertise the jamming they confronted within the Donbas and weren’t being focused by drones or ground-based digital surveillance. Though Russian forces did blow up some broadcast radio and tv towers, Ukraine’s leaders continued to succeed in the skin world unimpeded by Russian EW.

Utilizing counter-drone techniques supplied by america earlier than the invasion, Ukrainian troops have downed tons of of Russian drones by jamming their GPS alerts or probably by damaging their electronics with high-powered microwave beams.

Russia is
gaining the higher hand now, having consolidated management in Ukraine’s east and south because the invaded nation begins working out of troopers, weapons, and time. With extra outlined entrance strains and higher logistics help from their homeland, Russian troops at the moment are utilizing their EW techniques to information artillery and rocket strikes. However as an alternative of being the forefront of Russia’s offensive, EW is coming into play solely after Moscow resorted to siege ways that recall to mind the origins of EW in World Struggle I.

The RF spectrum was so much much less busy then. Commanders used their new radios to coordinate troop actions and direct fireplace and employed early passive direction-finding gear to find or take heed to enemy radio transmissions. Whereas communications jamming emerged on the identical time, it was not broadly employed. Radio operators realized that merely keying their techniques may ship out a blast of white noise to drown the transmissions of different radios working on the identical frequencies. However this tactic had restricted operational worth, as a result of it additionally prevented forces doing the jamming from utilizing the identical radio frequencies to speak. Furthermore, warfare occurred slowly sufficient that the sufferer may merely wait out the jammer.

Thus, World Struggle I EW was exemplified by passive detection of radio transmissions and rare, rudimentary jamming. The shift to extra refined EW techniques and ways occurred with World Struggle II, when technological advances made airborne radars and jammers sensible, higher tuners allowed jamming and speaking on separate frequencies, and the elevated tempo of warfare gave combatants an incentive to not simply jam enemy transmissions however to intercept and exploit them as effectively.

Contemplate the Battle of Britain, when the principle
problem for German pilots was reaching the fitting spot to drop their bombs. Germany used a radio-beacon system it known as Knickebein (“crooked leg” in English) to information its bombers to British plane factories, which the British countered with faux beacons that they code-named Aspirin. To help British warplanes attacking Germany in 1942, the Royal Air Power (RAF) fielded the GEE hyperbolic radio navigation system that allowed its bomber crews to make use of transmissions from British floor stations to find out their in-flight positions. Germany countered with jammers that drowned out the GEE transmissions.

The World Struggle II EW competitors
prolonged to sensing and communication networks. RAF and U.S. bombers distributed clouds of metallic chaff known as Window that confused German air-defense radars by creating hundreds of false radar targets. And so they used VHF communication jammers, which the British known as Jostle, to intrude with German floor controllers making an attempt to vector fighters towards allied bombers.

The move-countermove cycle accelerated in response to Soviet navy aggressions and advances within the Nineteen Fifties. Energetic countermeasures corresponding to jammers or decoys proliferated, because of technological advances that enabled EW techniques with better energy, wider frequency ranges, and extra complicated waveforms, and which have been sufficiently small to suit plane in addition to ships.

Later, as Soviet navy sensors, surface-to-air missiles, and antiship cruise missiles grew of their sophistication and numbers, the U.S. Division of Protection sought to interrupt out of the radar-versus-electronic-attack competitors by leveraging rising supplies, pc simulation, and different applied sciences. Within the years since, the U.S. navy has developed a number of generations of stealth plane and ships with severely lowered radio-frequency, infrared, acoustic, and visible signatures. Russia adopted with its personal stealth platforms, albeit extra slowly after the Soviet Union’s collapse.

However right now, years of underfunded aviation coaching and upkeep and the fast introduction by NATO of Stinger shoulder-launched surface-to-air missiles have largely grounded Russian jets and helicopters throughout the Ukraine invasion. So when Russian troops crossed the border, they confronted a scenario not not like the armies of World Struggle I.

With out airpower, the Russian assault crawled on the velocity of their vans and tanks. And though they proved efficient within the Donbas over the past decade, Russian drones are managed by line-of-sight radios working within the
Oka– and Oku-bands, which prevented them from straying too removed from their operators on the bottom. With Russian columns transferring alongside a number of axes into Ukraine and unable to ship EW drones effectively over the horizon, any jamming of Ukrainian forces, a few of which have been interspersed between Russian formations, would have additionally taken out Russian radios.

Russian EW items did use Leer-3 items to seek out Ukrainian fighters through their radio and cellphone transmissions, as they’d within the Donbas. However not like Ukraine’s rural east, the areas round Kyiv are comparatively densely populated. With civilian cellphone transmissions combined in with navy communications, Russian ES techniques have been unable to pinpoint navy transmitters and use that info to focus on Ukrainian troops. Making issues worse for the Russians, Ukrainian forces additionally started utilizing the NATO Single-Channel Floor and Airborne Radio System, or

Ukrainian troops had educated for a decade with SINCGARS, however the transportable VHF fight radios have been scarce till the lead-up to the Russian invasion, when the flood of NATO help despatched SINCGARS radios to almost each Ukrainian floor unit. In contrast to Ukraine’s earlier radios, which have been Russian-built and included
backdoors for the comfort of Russian intelligence, SINCGARS have built-in encryption. To guard in opposition to jamming and interception, SINCGARS robotically hops amongst frequencies as much as 100 occasions a second throughout its total protection of 30 to 88 megahertz. As a result of SINCGARS can management alerts inside 25-kilohertz bands, the person can choose amongst greater than 2,000 channels.

As in World Struggle I, the dearth of airpower additionally affected the velocity of battle. The broadly circulated movies of Russian armored convoys caught alongside the roads round Kyiv have been a stark reminder that floor operations can solely transfer as quick as their gas provide. In World Struggle II and the Chilly Struggle, bombing missions and different air operations occurred so shortly that even when jamming impacted pleasant forces, the impact could be short-term, because the positions of jammers, jamming targets, and bystanders would shortly change. However when Russian forces have been trundling towards the city areas of northern Ukraine, they have been going so slowly that they have been unable to take advantage of altering geometries to get their jammers into positions from which they might have substantial results. On the identical time, Russian troops weren’t sitting nonetheless, which prevented them from organising a big system just like the Krasukha-4 to blind NATO radars within the air and in area.

Russian EW is gaining a bonus solely now as a result of Moscow’s technique of shortly taking Kyiv failed, and it shifted to a grinding warfare of attrition in Ukraine’s south.

So what’s subsequent? The Kremlin’s fortunes have improved now that its troopers are combating from Russian-held territory in Ukraine’s east. Now not unfold out alongside a number of strains in suburban areas, invading troops at the moment are in a position to make use of EW to help a technique of incrementally gaining territory by discovering Ukrainian positions and overwhelming them with Russia’s roughly 10-to-1 benefit in artillery.

As of this writing, at the very least three of Russia’s 5 EW brigades are engaged in Ukraine. And with extra publicity to NATO-supplied radios, skilled Russian EW operators who lower their tooth within the final decade of warfare in Syria are starting to
detect and degrade Ukrainian communications. EW brigades are utilizing the Leer-3’s Orlan-10 drones to detect Ukrainian artillery positions primarily based on their radio emissions, though the encryption and frequency hopping of SINCGARS radios makes them onerous to intercept and exploit. As a result of the entrance strains at the moment are higher outlined in comparison with the early warfare round Kyiv, Russian forces can assume the detections are from Ukrainian navy items and direct artillery and rocket fireplace in opposition to these places.

side profile of an orlan 10 drone and a LEER-3 Russian military vehicleRussian troops are utilizing Orlan-10 drones [foreground] along side the Leer-3 electronic-warfare system (which incorporates the truck within the background) to establish and assault Ukrainian items. iStockphoto

The Krasukha-4, which was too highly effective and unwieldy to be helpful throughout the assault on Kyiv, can also be making a reappearance. Exploiting Russia’s territorial management within the Donbas, EW brigades are utilizing the Krasukha-4 to
jam the radars on such Ukrainian drones because the Bayraktar TB2, and to intrude with their communication hyperlinks, stopping Ukrainian forces from finding Russian artillery emplacements.

To realize flexibility and mobility main as much as the invasion, the Russian military broke its 2,000-soldier maneuver brigades into smaller battalion tactical teams (BTGs) of 300 to 800 personnel in such a approach that every included a portion of the unique maneuver brigade’s EW firm. In the present day, BTGs working in southern and japanese Ukraine are using shorter-range VHF-UHF digital assault techniques just like the R-330Zh Zhitel to disable Ukrainian drones starting from Bayraktar TB2s to small DJI Mavics by jamming their GPS alerts. BTGs are additionally attacking Ukrainian communications utilizing R-934B VHF and SPR-2 VHF/UHF jammers, with some success. Though Ukrainian troopers have SINCGARS radios, they nonetheless depend on susceptible cellphones and radios with out encryption or frequency hopping when SINCGARS is down or unavailable.

However Ukraine is combating again in opposition to Russia’s spectrum assault. Utilizing counter-drone techniques
supplied by america earlier than the invasion, Ukrainian troops have downed tons of of Russian drones by jamming their GPS alerts or probably by damaging their electronics with high-powered microwave beams, a selected kind of EA the place electromagnetic power is used to generate excessive voltages in delicate microelectronics that injury transistors and built-in circuits.

Ukrainian forces are additionally leveraging U.S.-supplied EW techniques and
coaching to jam Russian communications. In contrast to their Ukrainian counterparts, Russian troops would not have a system like SINCGARS and infrequently depend on cellphones or unencrypted radios to coordinate operations, making them prone to Ukrainian geolocation and jamming. On this approach, stabilization of the entrance strains additionally helps Ukraine’s EW efforts as a result of it permits fast correlation of transmissions to places. Ukraine’s defenders additionally exploited a weak spot of the massive and highly effective Russian EW techniques—they’re straightforward to seek out. Utilizing U.S.-supplied ES gear, Ukrainian troops have been in a position to detect transmissions from techniques just like the Leer-3 or Krasukha-4 and direct rocket, artillery, and drone counterattacks in opposition to the truck-borne Russian techniques.

The Ukraine invasion reveals EW can change the course of a warfare, however it’s additionally exhibiting that the basics nonetheless matter. With out airpower or satellite-guided drones, Russia’s military couldn’t get jammers over the horizon to degrade Ukrainian communications and radars prematurely of troops transferring on Kyiv. Pressured to make use of short-range unmanned plane and floor techniques, Russian EW brigades working with BTGs needed to fear about interfering with pleasant operations and couldn’t distinguish Ukrainian troops from civilians. Additionally they needed to keep on the transfer, lowering the utility of their giant multivehicle EW techniques. Russian EW is gaining a bonus solely now as a result of Moscow’s technique of shortly taking Kyiv failed, and it shifted to a grinding warfare of attrition in Ukraine’s south.

So for now, unable to succeed in over the horizon, Russian EW floor items can jam Ukrainian troops solely when they’re separated by clearly outlined battle strains. They’re counting on techniques just like the Leer-3 to seek out Ukrainian emissions so Russian artillery can then overwhelm the defenders with volleys of shells and rockets. Russian EW techniques just like the Krasukha-4 and R-330Zh Zhitel can disable GPS or radars on Ukrainian drones, however it’s not considerably totally different from capturing down plane with weapons. And though ES techniques just like the Moskva-4 may hear alerts over the horizon, Russia is
working out of the long-range missiles that might exploit such detections.

Maybe the largest lesson from Ukraine for EW is that profitable the airwaves doesn’t equal profitable the warfare. Russia is on prime of the EW warfare now solely as a result of its lighting assault turned a pulverizing slog. The scenario may shortly flip if Kyiv’s troops, with western help, regain management of Ukraine’s skies, the place they might electronically and bodily disrupt the administration and logistics that maintain Russia’s rickety warfare machine trundling alongside.

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