The 92N6A is a Russian 92N6-family engagement radar associated with the S-400 Triumf air-defense system. Public sources describe the 92N6/92N6E Grave Stone as the multifunction radar that acquires and tracks targets, prepares launches, guides missiles, and exchanges fire-control data with the S-400 command system; conflict rows are limited to sources that directly name the 92N6 or 92N6E family rather than generic S-400 deployments.
Ukrainian military intelligence reported destroying a Russian S-400 command-post position in occupied Crimea on 1-2 November 2025, including a 92N6E multifunction radar; Suspilne later reported Ukraine's Special Operations Forces saying a February 2026 Crimea strike destroyed another 92N6E radar station with S-400 system elements.
Role detailsOpen-source analysis identified a 92N6E radar station with Russian S-400 equipment at Khmeimim air base in 2017, and RUSI described Syria-based Russian S-400 units using the 92N6 combat engagement radar at Khmeimim and near Masyaf.
The conflict rows use direct 92N6-family evidence, not generic reports that only mention complete S-400 batteries. Ukraine sources name 92N6E radar stations in reported Crimea strikes; Syria sources identify a 92N6E at Khmeimim and discuss the 92N6 engagement radar in Russian S-400 units deployed at Khmeimim and near Masyaf. Public sources found for India-Pakistan fighting supported Indian S-400 use generally, but did not provide a clean direct 92N6A/92N6E radar-specific record.
Source references: GUR Crimea 92N6E Strike; Suspilne Crimea S-400 Strike; InformNapalm Khmeimim S-400 Positions; Could Russian S-400s Protect Syria Against Cruise Missiles?
The 92N6 family sits between the S-400 command-and-search layer and the launchers. Rosoboronexport's export description gives the 92N6E the engagement tasks: search from target-designation data or autonomously, acquire and track targets, select targets for destruction, prepare launches, guide missiles, and exchange information with the 30K6E control system.
Multifunctional engagement radar for target tracking, launch preparation, missile guidance, and automatic data exchange in the S-400 architecture.
The export 92N6E is well described publicly; the 92N6A designation appears in open sources as an upgraded form, but subtype-specific primary-source detail remains limited.
Source references: S-400 "Triumph"; 92N6E "Grave Stone"; 92N6 92N6E Grave Stone Radar.
Open sources use 92N6, 92N6A, 92N6E, and 92N2E designations for closely related S-400 engagement-radar forms; export and domestic subtype details are not always separated consistently.
| Variant | Configuration | Designation notes |
|---|---|---|
| 92N6 | Baseline Grave Stone engagement radar | Army Recognition describes the 92N6 as the initial S-400-family phased-array engagement radar, while Radartutorial describes the 92N6E family as a missile-guidance radar for the SA-21/S-400 system. |
| 92N6A | Upgraded domestic-family form | Army Recognition identifies 92N6A as an upgraded 92N6 form with enhanced anti-jamming, signal processing, tracking precision, and a higher cited radar range; public primary-source detail for the subtype remains sparse. Sources: 92N6 92N6E Grave Stone Radar |
| 92N6E | Export multifunctional radar | Rosoboronexport lists the 92N6E multifunctional radar in the S-400 export set and describes its target search, acquisition, missile-launch, guidance, and data-exchange tasks. Sources: S-400 "Triumph" |
| 92N2E | Alternate open-source designation | Open-source S-400 summaries sometimes list 92N2E as an alternate designation for the 92N6E multifunctional radar; this record keeps 92N2E as an alias rather than a separate catalog page. Sources: S-400 Missile System |
The 92N6A page is treated as a component record because public conflict reporting normally identifies complete S-400 batteries rather than isolating a domestic engagement-radar subtype.
| Compatible item | Item type | Compatibility evidence |
|---|---|---|
 | Long-range surface-to-air missile system | Rosoboronexport describes the 92N6E multifunctional radar as the S-400 element that searches, acquires, selects targets, prepares launches, guides missiles, and exchanges information with the 30K6E control system. Sources: S-400 "Triumph" |
 | Surveillance and battle-management radar | The 91N6-family radar builds the long-range air picture for the same air-defense architecture, while the 92N6-family radar performs the engagement and missile-guidance layer. Sources: S-400 "Triumph", 92N6E "Grave Stone" |
CSIS Missile Threat lists the S-400 Triumf entering Russian service in 2007, establishing the parent system context for the 92N6-family engagement radar.
Sources: S-400 Triumf
A Wikimedia Commons image page identifies a 92N6E radar assembly line at an Almaz-Antey factory, illustrating continuing public visibility of the export-family radar in Russian defense-industrial media.
Sources: File:92N6E radar assembly line.jpg
