Build To Spec Products
ALTEN GT has been involved in the Design, Development, Verification and Certification of Build-To-Spec Safety Critical Avionics Products for more than two decades. There is Proven Expertise at ALTEN GT in offering complete end-to-end Avionics and Aerospace Solutions. The products designed and developed by ALTEN GT span a wide range of applications from Transponders, ARINC 429 Routers, Cabin Lighting Systems to Airborne Early Warning Systems, Control and Display units and Time Distribution Units. The products are in use in several General Aviation, Air Transport Aircraft and Rotorcraft platforms all over the world.
ALTEN GT is a one-stop solution provider for Embedded Avionics Hardware and Software. With a unique blend of Product Development and Services History, ALTEN GT has what it takes to perfectly understand the market needs and formulate solutions that are best suited and most economically viable.
Some of our unique values are:
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- GPS-SBAS Class B3 Receiver
- ADS-B Receiver/Transponder
- ARINC 429 Router/Filter/Function Processor
- Aircraft Cabin Lighting System
GPS-SBAS Class B3 Receiver
ADS-B Receiver/Transponder
ALTEN GT 1090 MHz ADS-B In receiver is an Automatic Dependent Surveillance – Broadcast (ADS-B) receiver unit with a built-in GNSS satellite receiver best suitable for ADSB base-station installations. The receiver Complies with RTCA DO-260B, A1S receive standards.
The 1090 MHz ADS-B In receiver receives transmissions from Aircraft equipped with a 1090 MHz ADS-B transponder and reports it through Ethernet and serial link to Ground Station Displays.
Some of the features of the ADS-B receiver is:
ALTEN Global Technologies also has developed a fully qualified, FAA certified DO-282B Compliant ADS-B Transmitter/Receiver System used in the General Aviation Segment.
The applicable standards are:
ARINC 429 Router/Filter/Function Processor
A product built to customer specification to perform filtering and routing of ARINC 429 labels.
The LRU also provides processing of input labels and generation of simple arithmetic/logical function based output. The Router/Filter is designed in a way that many functions can be simultaneously performed using a configuration file that defines the functions. No Hardware or Software changes are necessary.
In addition to the several input and output ARINC 429 Channels, the product supports multiple discrete input/output.
All-in-all, it is a convenient matching device between two different systems. The product can be used in endless applications that require seamless meshing and also as a functionality extender/monitoring unit.
The product was designed to DO-178C and DO-254 DAL B with full DO-160G Environmental Qualification.
Aircraft Cabin Lighting System
Driven by a customer's need to manage Obsolescence, the Cabin Lighting System Product for the Airbus 320 was redesigned and Built-to-Spec. The product was reengineered based on Specification and then underwent the EASA Certification Process.
ALTEN GT was involved in full life cycle processes and provided a quick solution to the customer. This was one of the Obsolescence projects completed at ALTEN GT.
- Early Warning System
- Control Display Unit
- Ruggedized Time Distribution Unit
- IRIG-B Timecode generator
Early Warning System
ALTEN GT designed and developed an Early Warning System for Rotorcraft, complying to CEMILAC standards. The System functioned as a Pilot Aid to issue Warnings when maneuvers might de-stabilize Rotorcraft control subsequently resulting in a Crash.
The product was DO-160G qualified. The Product was taken through Full Airborne Certification compliant to CEMILAC standards. Qualification per DO-178B DAL "A" was successfully completed.
ALTEN GT involvement in the program was from end to end - Requirements to Certification.
The product underlines ALTEN GT capability to work on core Flight Computing Systems. There are production orders over 5 years highlighting a high Production volume.
Control Display Unit
The product underlines ALTEN GT capability to work on core Flight Computing Systems. There are production orders over 5 years highlighting a high Production volume.
ALTEN GT performed all engineering activities for the product - Requirements to Certification. The product was certified by CEMILAC to DO-178C DAL "B".
The Display Unit includes a built-in GPS-SBAS Receiver. Display Software was developed based on ALTEN GT Graphics Library. Core Algorithms were implemented by ALTEN GT. One of the key features was the "Lead me Home" or "Return to base" feature that can be activated quickly by the pilot.
The product used ALTEN GT homegrown ARINC 653 compliant Real Time Operating Systems - OASYS which also received full airborne Certification by CEMILAC
Ruggedized Time Distribution Unit
ALTEN GT high performance Ruggedized Time Distribution Unit (RTDU) provides GNSS synchronized Time and Frequency outputs. The unit is configured to provide various timing interfaces such as 1-PPS in TTL and RS-422 level, 10 MHz, NTP
The unit is specifically designed for military and aerospace applications conforming to MIL-STD-810D, MIL-STD-704D and MIL-STD-461E.
RTDU includes indigenously designed 30 Channel GPS/GLONASS/SBAS/(IRNSS optional) receiver. The unit generates highly accurate, GNSS disciplined 1-PPS from an internal high stable rubidium oscillator.
The purpose of the system is to distribute accurate time over the Ethernet using NTP (Network Time Protocol), Time Protocol and Daytime Protocol.
IRIG-B Timecode Generator
ALTEN GT has developed a precision IRIG-B time code generator that receives reference time from the atomic clocks in GPS satellites. It extracts timing reference from the GPS signals, and generates time code synchronized to less than 10 microseconds of UTC (Universal Coordinated Time)
The product is in production and used in military applications
The time code generator supports an extended hold over time when GNSS is absent. The unit also features Interference mitigation algorithms, Spoofing detection and indication algorithms
