TDB-DST backs M/s Lekha Wireless Solutions, Bengaluru in Advancing India’s Wireless Communication Technology

  • Technology Development Board (TDB) under the Department of Science and Technology.
  • Innovative project “Tactical Advanced SDR for Space, Defence and Aviation Applications.
  • Significant stride towards promoting innovation and technological advancement in India.
  • TDB has approved financial assistance of Rs. 4.17 Crores out of Rs. 17.92 Crores.
  • Aim is to bring to market an array of cutting-edge products under the brand name “Antares.


  • Handheld SDR: Designed to operate in L, S and C bands for tactical applications, specifically intended for Non-3G PP applications. It features essential components such as Baseband Processing, Power Amplifier, and an Integrated Antenna. Critical parameters include weight, form factor, communication range, and battery management. Certification for both ESS and EMI/EMC is imperative.
  • Multi-Channel SDR: Similar to the handheld version but designed in a man-pack form, with a 50 W RF capability to facilitate extended communication ranges.
  • Satcom SDR: Tailored for Satcom applications and operational within the S & C Band.
  • High Power Add-On: It offers various add-on power modules, allowing flexibility in selecting the appropriate module to meet the RFP requirements of tenders.


  • The proposed Tactical SDR represents a unified radio system that accommodates multiple form factors, including vehicle mount, pole mount, and handheld radios.
  • Operates within both licensed and unlicensed bands, supports frequency hopping, and is compatible with both legacy and advanced digital waveforms.
  • This indigenous technology-based radio system serves as an import substitute for the Indian Armed Forces, offering eight different form factors to address a wide range of use cases.
  • The project places a strong emphasis on rigorous testing and certification.
  • All trials involve end-user participation and certification by NABL-approved agencies.
  • The products undergo Environmental Stress Screening (ESS) and EMI/EMC (Electromagnetic Interference/ Electromagnetic Compatibility) Testing, ensuring compliance with international standards.
Posted in Current Affairs.