Russian electronic warfare forces repositioned a jammer near St Petersburg around July 2024, aimed at protecting Kronstadt naval base and Primorsk oil export port, impacting radio signals north over Finland.

Intelligence & EspionageSignals/Technical Intelligence (SIGINT/TECHINT)Electronic surveillance

Aggressor

Summary

In July 2024, Russian electronic warfare forces moved or repositioned a key jammer to a new location just west of St Petersburg. The repositioning aims to better safeguard the Kronstadt naval base and the Primorsk oil export port, two critical military and energy infrastructure sites. This jammer's signal interference has simultaneously affected a much broader area, including northern Finland, disrupting aviation radio signals significantly. The repositioning was identified by analyzing intersections of radio horizon data from jammed aircraft signals. Previously, the jammer was thought to be located southwest of St Petersburg near Narva, Estonia. While this repositioning strengthens Russian protection of key assets, it also extends electronic warfare effects over foreign airspace, deteriorating aviation communication in Finland.

Classification

Confidence: High

The thread explicitly describes Russian repositioning of an electronic warfare jammer to protect Russian military and economic infrastructure while causing increased radio disruption over Finnish airspace, classifying it as a clear aggressor action.

Source URL

https://x.com/i/web/status/1821995910173217055

Open source

Provenance

Publisher: csv-import
Submitted: Feb 13, 2026, 19:25 UTC
Last updated: Nov 8, 2026, 20:41 UTC
Event time: Jul 1, 2024, 00:00 UTC

Published as a hybrid-warfare signal with a public source and reviewer-approved assessment bands. See the methodology for how records are assessed.

Raw record

{
  "id": "167a944c-bd91-46e1-a78d-0ad03a908fb0",
  "url": "https://x.com/i/web/status/1821995910173217055",
  "source": "csv-import",
  "status": "approved",
  "category": "Intelligence & Espionage",
  "subcategory": "Signals/Technical Intelligence (SIGINT/TECHINT)",
  "incident_type": "Electronic surveillance",
  "country": "Russian Federation",
  "source_reliability": "C",
  "info_credibility": "3",
  "tags": [
    "Russian EW",
    "Signal Jamming",
    "Kronstadt Naval Base",
    "Primorsk Oil Export",
    "Finland Aviation Disruption",
    "Electronic Warfare",
    "Baltic Region"
  ],
  "nodes": [],
  "countries": [],
  "where_text": "Land",
  "headline": null,
  "description": "Russian electronic warfare (EW) forces have repositioned a radio jammer from southwest St Petersburg near Narva, Estonia, to a more westerly stance just west of St Petersburg city, starting in early July 2024. The move primarily aims to shield the Kronstadt naval base and Primorsk oil export port—major military and energy infrastructure hubs. This repositioning was identified by intersecting radio horizon data from over 10,000 aircraft message points, showing concentrated jamming in the new area. The side effect is significant disruption of radio signals extending northwards over Finland. The data was analyzed and visualized with support from @live_airplanes and @PajalaJussi. The exact precision of jammer location is uncertain, but the country and region are confident. The jammer previously was positioned southwest of St Petersburg. This expanded jamming footprint imposes drastic impacts on Finnish aviation communications, indicating how Russian EW efforts aim to protect Russian strategic facilities while projecting disruptive power over neighboring airspace.",
  "summary_short": "Russian electronic warfare forces repositioned a jammer near St Petersburg around July 2024, aimed at protecting Kronstadt naval base and Primorsk oil export port, impacting radio signals north over Finland.",
  "summary_extended": "In July 2024, Russian electronic warfare forces moved or repositioned a key jammer to a new location just west of St Petersburg. The repositioning aims to better safeguard the Kronstadt naval base and the Primorsk oil export port, two critical military and energy infrastructure sites. This jammer's signal interference has simultaneously affected a much broader area, including northern Finland, disrupting aviation radio signals significantly. The repositioning was identified by analyzing intersections of radio horizon data from jammed aircraft signals. Previously, the jammer was thought to be located southwest of St Petersburg near Narva, Estonia. While this repositioning strengthens Russian protection of key assets, it also extends electronic warfare effects over foreign airspace, deteriorating aviation communication in Finland.",
  "actor_primary": "Russian electronic warfare forces",
  "target_primary": null,
  "location_text": "Near St Petersburg, west of St Petersburg",
  "location_region": null,
  "location_coordinates_lat": 61.52401,
  "location_coordinates_lon": 105.318756,
  "location_precision": "Approximate",
  "is_aggressor_signal": true,
  "signal_type": "HYBRID_SIGNAL",
  "is_hybrid_war_signal": true,
  "classification_complete": true,
  "hybrid_signal_complete": true,
  "classification_confidence": "High",
  "classification_rationale": "The thread explicitly describes Russian repositioning of an electronic warfare jammer to protect Russian military and economic infrastructure while causing increased radio disruption over Finnish airspace, classifying it as a clear aggressor action.",
  "event_time_utc": "2024-07-01T00:00:00.000Z",
  "end_time_utc": null,
  "event_time_confidence": "pm24h",
  "created_at": "2026-02-13T19:25:09.420Z",
  "updated_at": "2026-11-08T20:41:59.833Z",
  "reliability_band": "strong",
  "location_precision_band": "approximate",
  "time_precision_band": "within_24h",
  "severity_band": "moderate",
  "attribution_confidence_band": "high",
  "attribution_basis": "single_source"
}

Public assessmentReliability: StrongSeverity: ModerateAttribution: HighSingle sourceTime: Same dayLocation: Approximate

Source reliability

Info credibility

Event time

Jul 1, 2024, 00:00 UTC

Event time confidence

pm24h

Location

Near St Petersburg, west of St Petersburg

Primary actor

Russian electronic warfare forces

Country

Russian Federation

Tags

Russian EW, Signal Jamming, Kronstadt Naval Base, Primorsk Oil Export, Finland Aviation Disruption, Electronic Warfare, Baltic Region

Loading signal...

{ "id": "167a944c-bd91-46e1-a78d-0ad03a908fb0", "url": "https://x.com/i/web/status/1821995910173217055", "source": "csv-import", "status": "approved", "category": "Intelligence & Espionage", "subcategory": "Signals/Technical Intelligence (SIGINT/TECHINT)", "incident_type": "Electronic surveillance", "country": "Russian Federation", "source_reliability": "C", "info_credibility": "3", "tags": [ "Russian EW", "Signal Jamming", "Kronstadt Naval Base", "Primorsk Oil Export", "Finland Aviation Disruption", "Electronic Warfare", "Baltic Region" ], "nodes": [], "countries": [], "where_text": "Land", "headline": null, "description": "Russian electronic warfare (EW) forces have repositioned a radio jammer from southwest St Petersburg near Narva, Estonia, to a more westerly stance just west of St Petersburg city, starting in early July 2024. The move primarily aims to shield the Kronstadt naval base and Primorsk oil export port—major military and energy infrastructure hubs. This repositioning was identified by intersecting radio horizon data from over 10,000 aircraft message points, showing concentrated jamming in the new area. The side effect is significant disruption of radio signals extending northwards over Finland. The data was analyzed and visualized with support from @live_airplanes and @PajalaJussi. The exact precision of jammer location is uncertain, but the country and region are confident. The jammer previously was positioned southwest of St Petersburg. This expanded jamming footprint imposes drastic impacts on Finnish aviation communications, indicating how Russian EW efforts aim to protect Russian strategic facilities while projecting disruptive power over neighboring airspace.", "summary_short": "Russian electronic warfare forces repositioned a jammer near St Petersburg around July 2024, aimed at protecting Kronstadt naval base and Primorsk oil export port, impacting radio signals north over Finland.", "summary_extended": "In July 2024, Russian electronic warfare forces moved or repositioned a key jammer to a new location just west of St Petersburg. The repositioning aims to better safeguard the Kronstadt naval base and the Primorsk oil export port, two critical military and energy infrastructure sites. This jammer's signal interference has simultaneously affected a much broader area, including northern Finland, disrupting aviation radio signals significantly. The repositioning was identified by analyzing intersections of radio horizon data from jammed aircraft signals. Previously, the jammer was thought to be located southwest of St Petersburg near Narva, Estonia. While this repositioning strengthens Russian protection of key assets, it also extends electronic warfare effects over foreign airspace, deteriorating aviation communication in Finland.", "actor_primary": "Russian electronic warfare forces", "target_primary": null, "location_text": "Near St Petersburg, west of St Petersburg", "location_region": null, "location_coordinates_lat": 61.52401, "location_coordinates_lon": 105.318756, "location_precision": "Approximate", "is_aggressor_signal": true, "signal_type": "HYBRID_SIGNAL", "is_hybrid_war_signal": true, "classification_complete": true, "hybrid_signal_complete": true, "classification_confidence": "High", "classification_rationale": "The thread explicitly describes Russian repositioning of an electronic warfare jammer to protect Russian military and economic infrastructure while causing increased radio disruption over Finnish airspace, classifying it as a clear aggressor action.", "event_time_utc": "2024-07-01T00:00:00.000Z", "end_time_utc": null, "event_time_confidence": "pm24h", "created_at": "2026-02-13T19:25:09.420Z", "updated_at": "2026-11-08T20:41:59.833Z", "reliability_band": "strong", "location_precision_band": "approximate", "time_precision_band": "within_24h", "severity_band": "moderate", "attribution_confidence_band": "high", "attribution_basis": "single_source" }