According to the RFP, the drone jammer (vehicle-based) should provide complete and comprehensive solutions for unmanned aircraft systems (UAS), drones and swarms that are multi-sensor-based (at least two sensors)

The Indian Army is looking to buy vehicle-based drone jammers that can detect and neutralise drones and swarms from multiple directions.

The Army issued a request for proposal (RFP) for jammers on 18 January with specifications and numbers of such vehicle-based systems that it wishes to purchase. The RFP currently states that 20 such vehicle-based jammers are required.

In addition to the technology being developed by private companies, the Defence Research and Development Organisation (DRDO) and Bharat Electronics Limited (BEL) have developed vehicle-based drone jammers.

According to the RFP, the drone jammer (vehicle-based) should provide complete and comprehensive solutions for unmanned aircraft systems (UAS), drones and swarms that are multi-sensor-based (at least two sensors).

“The system should be capable of detecting, tracking, designating, and neutralising swarms, drones and UAS approaching simultaneously from multiple directions,” it says.

It goes on to say that the jammer should integrate all detection sensors and identify threats in order to provide the operator with composite air situation pictures and to make the selection and management of counter-UAS and drone responses easier.

A radio frequency (RF) detector, 3D radar (Drone Detection Radar), RF and satellite navigation jammer system, and command and control centre should all be included in the jammer (C2 Centre).

Drone jamming can be accomplished in a variety of ways. RF jamming disrupts the radio frequency link between the drone and its operator by generating large amounts of RF interference. When the RF link, which may include Wi-Fi links, is severed, the drone will either descend to the ground or return to its home's manoeuvre.

Another approach is to interfere with the drone's satellite link, such as GPS or GLONASS. Drones that lose their satellite connection will usually hover, land, or return home.

Spoofing is yet another method of combating the drone threat. The jammer can then control or misdirect the targeted drone by feeding it a bogus communications or navigation link.

'Dazzling' can also be used to disable drones. This entails using a high-intensity light beam or laser to "blind" a drone's camera.

Lasers and high-powered microwaves can also destroy a drone's vital components, causing it to crash.

For successful operations, counter-unmanned aerial systems (C-UAS systems) typically employ a combination of interdiction methods.