Ukrainian radio‑electronics warfare specialist Sergey Flash has issued an urgent alert for domestic developers and manufacturers of radio‑electronic counter‑measure (REW) systems. According to his data, the enemy has substantially altered the tactics of strike‑type UAVs such as the Shahed‑136, integrating optical seeker heads (Seeker / “Сікери”) and widening the frequency spans of their MESH modems.
Problem of Shahed‑Seeker: Why Near‑Range REW No Longer Works
Previously, Russian Shahed‑type UAVs relied on their MESH link solely for telemetry and manual remote control. In that scenario any local REB complex that jammed the radio channel during the approach phase would force the drone to lose orientation or switch to inertial flight.
The mass deployment of onboard cameras with optical target acquisition (Seeker) has changed the physics of the confrontation:
- Target lock‑up at 2–3 km: In clear weather the UAV’s high‑resolution optics can acquire a target (substation, building or vehicle) several kilometres before the impact point.
- Autonomous mid‑course guidance without a link: If REB suppresses the MESH control channel at a distance of 1 km from the object, the drone no longer needs operator commands; its onboard computer guides it to the target using the previously locked visual contrast.
- Ineffectiveness of 1 km dome jammers: Low‑power dome systems with a suppression radius of up to 1 000 m no longer protect the asset, because the UAV enters their effective zone already in autonomous dive‑mode.
Migration of MESH Frequencies: Enemy Abandons Fixed 1.3–1.5 GHz Band
A second critical factor is the opponent’s departure from fixed frequency bands. Over the previous six months most Chinese MESH modems installed on Shahed‑type UAVs operated in a narrow 1300–1500 MHz window. Currently Russian forces are employing a considerably broader spectrum.
Flash emphasises that next‑generation REB systems must possess agile modules capable of rapidly switching operating bands across a wide frequency range, thereby avoiding wasteful “blind” jamming of empty channels.
Comparative REB Requirements (2025‑2026)
This matrix illustrates the evolution of requirements for means of suppressing MESH channels.
| REB System Parameter | Previous Model (Shahed MESH) | Current Model (Shahed‑Seeker) |
| Required Operating Radius | Sufficient 500–1 000 m | Must exceed 3–5 km (camera lock‑on distance) |
| Frequency Band | Static (mostly 1300–1500 MHz) | Multi‑band with real‑time switching |
| Main REB Objective | Disrupt telemetry and manual control | Prevent optical target acquisition before seeker engagement |
| Key System Type | Local dome jammers | Directed long‑range REB stations / Man‑Portable Air Defence |
Xpert Take
The warning from Sergey Flash underscores the high tempo of the “algorithm war”. The adversary’s adoption of optical seeker heads on Shahed drones is a direct response to the successes of Ukrainian REB systems, yet it forces the domestic defence industry to adapt immediately. Manufacturers that continue to produce low‑power dome jammers with a 1 km radius are expending precious resources on obsolete solutions. Competitive advantage will go to firms integrated within the Brave1 ecosystem that can outfit REB assets with long‑range directed antennas and multi‑band jamming generators.
Stay tuned for further coverage of radio‑electronic warfare and UAV technologies in the Defense Tech section of HiTech.Expert.
