DRDO releases Indian Radio Software Architecture standard
Asked by UPSCPrelims 2026, 20162 PYQs
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What happened
- DRDO, with IDS and the three services, released the Indian Radio Software Architecture (IRSA) standard 1.0 on 6 October 2025 [PIB].
- IRSA defines interfaces, APIs and waveform portability for software defined radios to ensure interoperability [PIB].
Background
- Software defined radios let one set run different waveforms by loading software [PIB].
Why it matters
- A national standard stops each service from buying incompatible radios.
How to use this in Mains
- As per PIB (2025-10-07): DRDO, with IDS and the three services, released the Indian Radio Software Architecture (IRSA) standard 1.0 on 6 October 2025.
- A national standard stops each service from buying incompatible radios.
Quotable data pointDRDO, with IDS and the three services, released the Indian Radio Software Architecture (IRSA) standard 1.0 on 6 October 2025.
PIB: DRDO: IRSA standard 1.0, 7 Oct 2025
Exam angle
UPSC
Prelims: SDR.
Practice MCQs
Original practice questions (not PYQs).
Practice · UPSC
IRSA is a standard for
Answer (a) & explanation
PIB.
Practice · UPSC
Version released
Answer (b) & explanation
PIB.
Practice · UPSC
Main aim
Answer (a) & explanation
PIB.
Official source: PIB: DRDO: IRSA standard 1.0, 7 Oct 2025
facts from cited sources only; faculty review pending