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Sigma Microsystems Private Limited

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Sigma is now in the process of upgrading its Quality Management System (QMS) to achieve compliance and certification to AS-9100 Rev C.

Sigma has moved to its  new Location at 24/A,Hardware Park,Near International Airport,
Srisailam Highway,Hyderabad - 500005.

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Solid State Flight Data Recorder
ImageOnline Data Recording & Storage
Solid-state Flight Data Recorder (SSFDR) is primarily an Aircraft 'Black Box', which records aircraft parameters and audio during a sortie. The data is recorded in a solid- state crash - protected memory module, conforming to EURO CAE ED-55 / 56A and TSO-C123/124, which survives extremely harsh environment like high impact, fire, explosion, marine water and such others, which may occur in an unfortunate crash. This enables the recorded data to be retained and recovered in most cases, after a crash / other accident, which may be analyzed later. During normal use, the data 'milked out' may be used for normal analysis of aircraft health and performance, facilitating preventive maintenance.
Aircraft parameters are acquired from sensor signals (like analog, discrete, frequency and synchro), from flight instruments on ARINC-429 and also on MIL-STD-1553 bus. Audio is acquired using area microphone and such other sensors.

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ImageImageAfter sortie(s), recorded data may be 'milked out' on high-speed data USB port, using any portable computer, in-situ. Similarly, telemetry data may be acquired on serial port (with RS-422) interface to monitor the health of the unit and for debugging purposes. The unit also supports upgrading the application software in-situ.

  • State-of-the-art design
  • Solid State Crash protected memory, with ULB
  • ½ ATR, Tray- mounting
  • Multi -Board architecture with flex-rigid PCB inter connectivity
  • Suitable for Rotary Wing / Fighter Aircraft platform
  • Filtered Power Supply
  • Filtered connectors
  • Optional Control Unit Box
  • High Reliability
  • Conforms to required environmental standards

• MIL-STD-810D
• MIL-STD-461D
• MIL-STD-704D

Welcome to Sigma Microsystems
Sigma Microsystems was formed in the year 1994 by a team of professional engineers with expertise in diverse fields and disciplines with the aim of providing state-of-the-art high quality embedded products and innovative solutions in hardware & software.

Sigma focuses on providing:

  • Embedded system solutions, with hardware and software, backed by its sound expertise in microprocessors, digital signal processors,VLSI designs and real-time systems

  • Software solutions on various hardware platforms - Embedded to computers / workstation, either with full-blown operating systems or without any operating system, with complete documentation and IV&V.

  • Generic, unique as well as tailored end-to-end solutions across a wide spectrum of requirements.


In pursuance of these goals, Sigma has carved a niche for itself in this area of its operations. It is recognized for its technical expertise, responsiveness to customer needs and meeting customer expectations with proven commitment to quality.


Its persistent focus on current technologies has resulted in the delivery of optimal and cost-effective products & services to its esteemed customers. Sigma's clientèle includes the cream of Defence R&D and Public / Private Industries.


Today, Sigma is poised for an exponential growth in its chosen field of activity, operating from multiple cities in India, with corporate office, design, development and manufacturing facilities in Hyderaba.

Our Vision

Sigma shall leverage its position as a recognized design, development and manufacturing house and an approved company in the Aerospace and Defence industry, to provide world-class products and services for National and International clients.

Sigma shall leverage and further strengthen its skill sets in embedded hardware and software and apply them to other market segments / verticals, and establish world-class offshore design, development and manufacturing center in India

Sigma shall accelerate its growth and explore formation of strategic alliances with possible industry partners, in order to leverage respective core competence, expertise, technical and financial strengths, and market reach, to provide comprehensive solutions with cutting-edge technology, for both local as well as global clientele.