Russia keeps upgrading its jet-powered drones, and Ukraine's electronic warfare is racing to keep up. Kyiv has set extra tasks for its military and manufacturers to scale up the most effective electronic warfare approaches, President Volodymyr Zelenskyy said after a meeting of the Supreme Commander-in-Chief's Staff on electronic warfare and infrastructure protection.

Russia keeps modifying its jet-powered Shaheds to beat each new Ukrainian defense, and Ukraine's answers have to keep pace. The race is tight: from 1 to 26 September, air defenses downed only 55 percent of the 2,730 new jet-powered drones, against 90% of the slower ones.

Hidden relays blunt Kyiv's jammers

Jamming has to improve because Russia keeps finding new ways around it. On 3 October, presidential adviser Serhii "Flash" Beskrestnov said someone had installed Russian MESH radio repeaters in Kyiv, a short control channel that guides Shahed drones onto their targets. As long as they are there, he said, closing the city with electronic warfare will not be effective.

"As long as online control of drones exists, not only the bridges but the air defense assets will be under threat," Flash stressed.

Sanctions aim at the supply chain

Beyond the jamming task, the Staff turned to where Russia gets the parts for those drones. Defense Intelligence reported on Russia's technological priorities for this year and next, and on supplies of critical components and equipment for its weapons production, Zelenskyy said.

New sanctions packages will follow, with Defense Intelligence due to send proposals to the Ukrainian government and the National Security and Defense Council, and Ukraine is working to align its sanctions with partners' jurisdictions.

The Staff also set the main tasks for supplying Ukrainian forces with long-range drones next year.

"The main criterion is that we must be able to respond in kind to Russian strikes," Zelenskyy emphasized.

Those parts, and the drones built from them, keep changing

In August, Intelligence Deputy Chief Vadym Skibitskyi said Russia remained fully dependent on Chinese turbojets for the Geran-4 and Geran-5, each costing about $35,000 to $40,000.

However, two months later, Ukraine reported the Geran-4 had received a locally built engine and a new optical navigation system. Kyiv has to stay attuned to changes to keep pace with the technology race, and so far, it is still trying to catch up rather than get ahead.

A few hidden transmitters may be sitting somewhere in Kyiv, switching on just long enough to steer Russian drones onto their targets. Presidential adviser Serhii Beskrestnov, known as Flash, says one to three concealed enemy repeaters may be operating in the capital, giving Russia a brief online channel to guide jet-powered Gerans onto precise targets.

He calls the devices MESH repeaters, compact modems that relay a short control signal to a Geran at the moment of attack, a channel Ukraine has been testing electronic warfare against for months. As long as they operate, he warns, sealing the city with jammers will not work.

Flash makes the case

"I now insist that the enemy's MESH radio repeaters are being switched on in Kyiv, providing a temporary, short-term control channel for jet-powered Gerans to adjust strikes," Flash says.

He keeps the number low: "Maybe 1 to 3. Such repeaters are hard to find, but we have to search." As evidence, he points to the guided strike on the headquarters of Ukraine's Security Service. A Russian agent, he said then, likely switched on a MESH relay within five kilometers of the target for the length of the attack.

The wreckage shows no other hidden link, he adds: "No LTE, no Rassvet, no alien quantum modems."

Jamming alone won't shield Kyiv

The stakes, in his telling, run past the bridges.

"As long as online control of the drones exists, not only the bridges but the air-defense assets on them will be under threat," Flash explains, noting that a Gepard anti-aircraft gun on a bridge crossed by tens of thousands a day cannot be hidden.

Without a stable channel right up to the impact point, he argues, a drone cannot strike a bridge pier or cable precisely. He leaves room for doubt, ending, "Let me be wrong about the repeaters." Yet in the whole war, he adds, he has "never once been wrong" in his technical reads of the enemy.