Defence Ministry signs contract worth ₹1,000 cr with BEL at Aero India 2021

The Ministry of Defense (Ministry of Defense) and the Public Sector Defense Enterprise (DPSU) Bharat Electronics Limited (BEL) have signed a contract for the procurement of software-defined radio tactics (SDR-Tac) worth more than 1000 kroner, during the Bandhan ceremony at Aero India 2021 at Yehalanka Air Force Station in Bengaluru today.

The SDR-Tac, developed jointly by the Navy, BEL, the Defense Research and Development Organization (DRDO) and DEAL, will bring strategic depth to the armed forces.

Delivery will take place within three years. BEL is already supplying SDR-Naval Combat (NC) and SDR-Air is in the process of being studied by consumers. DRDO and BEL plan to provide the latest SDR with a level of security for the armed forces, an official statement said.

What is SDR-Tac?

SDR-Tac is a four-channel multi-mode, multi-band, 19-inch, trunk-mounted, marine software-defined radio system. It is designed to serve ship to ship, ship to shore and ship by air for voice and data communication for network-oriented operations.

It supports the simultaneous operation of all four channels, covering V / UHF and L band. This SDR system contains many types of waveforms for narrowband and broadband applications.

MANET waveforms are available in UHF and L-band to support adhoc network function for non-centric operations. Attempts to evaluate users, covering comprehensive port and sea phase tests, were successfully completed in May to June 2018 in Visakhapatnam for all waveforms, including V / UHF and L-Band MANET waves in different network configurations.

Interoperability tests with all other form factors covering Airborne SDR-AR on board Dornier Aircraft, SDR-Tac on board INS Kirch in sailing mode, SDR-Manpack and SDR-Handheld were successfully performed. All aspects were successfully evaluated by all Navy user agencies and procurement was granted.

The military needs to move from one-time radio in the past to more flexible software-defined radio stations (SDRs) to serve most of its wireless communication needs. These SDRs will be backwards compatible with existing Indian radio stations.

Different groups of services require different radio factor stations for specific platforms and forms / applications. SDRs allow the use of common waveform / application execution methods for different form factors. They also allow the implementation of futuristic waveforms on the same hardware, using software programmability, thus providing longer life and cost savings.

A key factor in SDR is that software programmability allows easy changes to basic radio characteristics, such as modulation types, operating frequencies, bandwidth, multiple access schemes, source and channel encoding / decoding methods, propagation / decoding techniques, and algorithms. for encryption / decryption.

Traditional hardware-oriented radios require hardware changes to modify these basic features. Several types of radio equipment can be replaced with multi-mode, multi-band, multi-function SDRs with appropriate form factors, the statement said.

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