Special weapon helps Ukrainian firepower penetrate 50 km deep, difficult to jam

An airborne relay UAV is a drone that works like a signal booster in the sky. It sits between the human operator and another drone carrying out reconnaissance or attack missions. Its purpose is to keep the connection working across greater distances and difficult terrain.

The relay receives commands from the operator and passes them to the mission drone. It also receives video and intelligence from that drone, then sends the information back to the operator. The article compares this principle with a Wi-Fi repeater, which extends a wireless network.

Ukraine’s Twist Robotics redesigned its Saker Scout for this role. The company says the relay version can extend other drones’ operating range by more than 50 kilometers. It can also strengthen the communications link against disruption, although the relay UAV itself remains a possible target.

The most striking figure is more than 50 kilometers. According to Twist Robotics, its Saker Scout relay UAV can extend the operating range of other drones by that amount. The relay does not simply make the mission drone fly farther; it extends the distance over which the drone can remain connected.

The relay flies between the operator and the mission drone. It receives control instructions, passes them onward, and sends the mission drone’s video and intelligence back. Because the relay is airborne, it can create a communications link beyond the practical reach of a ground antenna.

The added range matters in a battlefield where drones perform reconnaissance and attacks at increasing distances. The article says Saker Scout’s original range was insufficient for many missions. Redesigned as a relay, the platform gained a new role, though Russia can still target the relay itself.

Raising the relay changes where the communications link travels. A ground antenna can be blocked by hills, buildings, or other terrain. An airborne relay flies above many of those obstacles, giving the operator and mission drone a better path for exchanging signals.

The relay sits between both sides of the link. It receives commands from the operator, sends them to the mission drone, and returns video and intelligence. Its higher position also expands the area that the signal can reach. The article compares the basic idea with a device that repeats a Wi-Fi signal.

This matters because Ukrainian drones must operate farther from their controllers while facing terrain and electronic warfare. Airborne relays help maintain the connection when direct communication is difficult. They do not remove every danger: Russia can still attack the relay UAV, which becomes an important part of the communications chain.

Electronic warfare seeks to interrupt the radio connection that carries commands and mission data. An airborne relay gives the operator and mission drone an additional communications point in the sky. The article says this strengthens the link and makes it harder for Russia to disrupt.

The relay receives the operator’s commands and forwards them to the mission drone. It also sends the drone’s video and intelligence back. By flying above ground antennas and terrain, the relay can help preserve connectivity when direct communication is under pressure. Its role is similar to an airborne signal amplifier.

This is not an absolute shield against electronic warfare. The article specifically notes that Russia can still target the relay UAV. Even so, Ukraine considers the technology increasingly important because drones need longer-range, more reliable control links in a battlefield where both sides continually adapt their equipment and countermeasures.

Several Ukrainian companies are developing airborne relay systems beyond Twist Robotics. Roboneers has adapted a Wardog variant to carry a relay weighing up to three kilograms. Skyriper makes the Skyriper-R Airborne Repeater, designed solely to relay signals. TAF Industries also began producing relay UAVs at military units’ request.

These systems solve two linked problems. They help signals pass around terrain, and they strengthen the control link against Russian electronic warfare. A relay receives commands from an operator, forwards them to a mission drone, and returns its video and intelligence. Some companies modify existing UAVs, while others build dedicated platforms.

The technology has shifted from an optional capability to what TAF Industries calls an essential element. Ukraine began mass-producing the Saker Scout relay configuration in 2023. The article also notes that Russia uses similar technology, including to help attack drones fly deeper into Ukraine.

Using aircraft as communications intermediaries is not a new idea. Militaries in different countries have used helicopters and airplanes to relay messages between units and forces separated by distance or blocking terrain. The aircraft served as an elevated link between groups that could not communicate directly.

Historically, the users on each end were usually soldiers or military units. The aircraft carried or supported communications equipment, passing information between forces. The same broad principle now applies to unmanned systems: a platform in the air receives a transmission and forwards it to another participant.

The battlefield context has changed. Large crewed aircraft may struggle to survive over Ukraine, where UAVs and air-defense systems are numerous. They are also limited in number, while UAVs are widely used. The article presents small, versatile relay UAVs as a more practical platform for this environment.

Radio signals are electromagnetic waves used to carry information without a physical cable. In a drone link, they can convey control commands from an operator and return video or intelligence. A transmitter sends the signal, while a receiver interprets the information encoded in it.

Distance generally weakens a radio signal because its energy spreads over a larger area. Obstacles such as hills, buildings, and terrain can block, absorb, or reflect it. A signal relay helps by receiving the transmission and sending it onward from another location. Placing that relay higher can reduce the effect of ground obstacles.

Interference occurs when other signals or deliberate electronic-warfare transmissions disrupt the intended message. It may reduce clarity or break the link. The article describes airborne relays as strengthening connections and making disruption harder, while stressing that the relay itself can still be targeted. These basic radio principles explain why altitude and relay position matter.