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BEL gets an order worth Rs 1,000 crore from Ministry of Defence

Ministry of Defence and Bharat Electronics Limited (BEL) has signed a contract for procurement of Software Defined Radio Tactical (SDR-Tac) worth over Rs 1,000 crore

BEL gets a contract worth Rs 1,000 from Defence Ministry
BEL gets a contract worth Rs 1,000 from Defence Ministry

New Delhi: Ministry of Defence and Bharat Electronics Limited (BEL) has signed a contract for procurement of Software Defined Radio Tactical (SDR-Tac) device worth over Rs 1,000 crore in New Delhi on Monday. The SDR-Tac, jointly designed and developed by Defence Electronics Applications Laboratory (DEAL) of Defence Research & Development Organisation (DRDO) through a consortium of domestic agencies and industry, comprising Weapons and Electronics Systems Engineering Establishment (WESEE), BEL, Centre for Artificial Intelligence & Robotics (CAIR) and Indian Navy will bring strategic depth to the Armed Forces. The delivery will take place within three years.

BEL is already supplying SDR-Naval Combat (NC) and SDR-Air is under user evaluation trial. The DRDO and BEL are planning to provide the latest SDR with security grading to the Armed Forces. 

The SDR-Tac is a four-channel multi-mode, multi-band-19’’ rack-mountable, shipborne software-defined radio system. It is intended to serve ship-to-ship, ship-to-shore and ship-to-air voice and data communication for network-centric operations. It supports simultaneous operation of all the four channels covering V/UHF and L Band. This SDR system houses multiple types of waveforms for narrow-band and wide-band applications. The MANET waveforms are available in UHF and L-Band to support ad-hoc networking feature for net-centric operations. User evaluation trials covering exhaustive harbour phase and sea phase trials were completed successfully during May to June 2018 at Visakhapatnam for all waveforms including V/UHF and L-Band MANET waveforms under different network configurations.

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Interoperability trials were also successfully carried out with all other form factors covering Airborne SDR-AR onboard Dornier Aircraft, SDR-Tac onboard INS Kirch in sailing mode, SDR-Manpack and SDR-Handheld. All the aspects were evaluated successfully by all user agencies of Navy and clearance was accorded for procurement.

The Armed forces are in need of transition from the single purpose radio of the past to more flexible Software Defined Radios (SDRs) to serve most of their wireless communication needs. These SDRs will be backwards compatible with existing Indian radios. Different Service groups require different form factor radios for specific platforms and waveforms/applications. The SDRs allow the use of common waveform or application implementation methods for different form factors. They also allow the implementation of futuristic waveforms on the same hardware using software programmability, thus ensuring longer life and savings on cost.

A key factor in SDRs is that software programmability allows easy changes of the radio's fundamental characteristics such as modulation types, operating frequencies, bandwidths, multiple access schemes, source and channel coding/decoding methods, spreading/de-spreading techniques and encryption/decryption algorithms. Traditional hardware-centric radios require hardware changes to modify these fundamental characteristics. Multiple types of radio equipment can be replaced with multi-mode, multi-band, multi-role SDR's of suitable form factors.

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