Repellent-1 () is a Russian electronic warfare system designed to suppress the operation of unmanned aerial vehicles at a distance of up to . It weighs more than 20 tons.
The system is able to detect miniature air targets from their control signals at a distance of more than , but is able to suppress drones only at a distance of not more than .Cabin is protected against small arms fire and NBC (Nuclear, Bacteriological and Chemical) agents
Repellent-1 was developed by the Russian Scientific and Technical Center for Electronic Combat (Russian: ÃÂðÃÂÃÂýþ-ÃÂõàýøÃÂõÃÂúþü ÃÂõýÃÂÃÂõ ÃÂðôøþÃÂûõúÃÂÃÂþýýþù ñþÃÂÃÂñÃÂ). It is installed on the chassis of MAZ () or KAMAZ depending on the wishes of the customer.
The development of "Repellent-1" was completed in 2016 and the system shown at an exhibition.
On August 11, 2018, the OSCE SMM noted in a report that on July 28, near the village of Chornukhyne, the UAV mission recorded four EW systems at once, including Repellent-1.
Armenia has lost two operating stations of the Repellent-1 complex.
On May 1, 2022, it was reported that a Russian "Repellent-1" had been destroyed.