Defence Ministry Inks an Agreement for Ship-borne Modern Radio System
Recently, the defence ministry of India has signed an agreement with Bharat Electronics Limited (BEL) to obtain a software-defined radio tactical (SDR-Tac) ship-borne system worth over Rs 1,000 crore, an official statement stated.

The SDR-Tac is a four channel multi-mode, multi-band, 19-inch rack mountable, ship-borne software defined radio system, it said.
The worth of this software is over ₹1,000 crore. The agreement signed during the ‘Bandhan’ ceremony at Aero India 2021 at Air Force Station Yehalanka in Bengaluru.
The SDR-Tac, jointly developed by Navy, BEL, Defence Research and Development Organisation (DRDO) and DEAL, will bring strategic depth to the Armed Forces.
What is SDR-Tac?
SDR-Tac, a four Channel Multi-mode, Multi-Band, 19’’ Rack mountable, shipborne Software Defined Radio system serves ship to ship, ship to shore and ship to air voice and data communication for network-centric operations.
It supports the operation of all the four channels covering V/UHF and L Band, parallely. This SDR system has different types of waveforms for narrowband and wideband applications.
The MANET waveforms are available in UHF and L-Band to support adhoc 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.