GNSS Jammers (Science & Technology)
GNSS Jammers (Science & Technology)
Why In News:
The Ministry of Defence (MoD) has signed a contract for the procurement of 20 GNSS Jammers for the Indian Navy at a contract value of Rs 449 crore.
The procurement is under the Buy (Indian-IDDM) category with a minimum indigenous content of 75%.
What is GNSS?
GNSS (Global Navigation Satellite System): A constellation of satellites providing autonomous geo-spatial positioning.
Examples: GPS (USA), GLONASS (Russia), Galileo (EU), BeiDou (China), and India's NavIC (Navigation with Indian Constellation).
Jammers: They disrupt enemy satellite navigation signals and counter spoofing attempts, enhancing operational safety and maritime security.
GNSS Jammers: Electronic warfare devices designed to disrupt or deny GNSS signals by adversaries.
Spoofing: Generation of false GNSS signals to mislead enemy navigation systems - a key threat jammers counter.
Key Facts for Prelims
NavIC: India's own regional navigation satellite system, developed by ISRO. Coverage: India and up to 1,500 km from the Indian boundary.
DAP 2020: Defence Acquisition Procedure 2020 replaced Defence Procurement Procedure (DPP) 2016.
Defence Industrial Corridors: Uttar Pradesh and Tamil Nadu have dedicated Defence Industrial Corridors to promote indigenisation.
iDEX (Innovations for Defence Excellence): Platform for startups and MSMEs to develop defence technologies.
Positive Indigenisation List: Items for which import is progressively banned to promote domestic production under Atmanirbhar Bharat.