DUOTECH is a requirements-driven company that provides repair and engineering services for military, government, and commercial electronic and electro-mechanical equipment. It has extensive facilities and capabilities for circuit board, communications, and radar system repair. DUOTECH also offers engineering solutions for component obsolescence issues and works to extend the service life of aging systems through repair, retrofitting, and remanufacturing.

1. Supporting the Past. Engineering the Future.
Brett Rogers
Vice President

2. • Mission
• Facilities
• Repair Capabilities
• Engineering Capabilities
• Customers
• Corporate Goals
• Conclusion
Outline

3. DUOTECH is a Requirements Driven Company designed
to solve the Repair and Remanufacturing problems for
military, civilian agencies, aerospace and commercial
users of electronic and electro-­mechanical equipment.
DUOTECH provides high quality services to assist our
customers in keeping major programs operating on
schedule and within budgeted costs
Mission

4. • Repair – Long-­term, Affordable Support
• Retrofit – Form/Fit/Function Solutions
• Upgrade – System Life Extension
Core Competencies

5. • State-­of-­the-­art single site facility
• Multiple clean environments
• Extensive inventory of OEM and government-­
approved test equipment
Facilities

6. • AS9100C Certified Processes
• EASA and FAA Part 145 Repair Station
• 33 years of US government contracting history
• ASQ and IPC-­qualified personnel
Facility and Personnel Qualifications

7. History
• Prime contractor for US DoD since 1990
• Qualified for over 12,000 unique NSNs
• Support more than 25 militaries worldwide
• Focused on aftermarket support for aging
systems

8. • US Department of Defense
• Special Operations – All Branches
• Department of Homeland Security
• Federal Aviation Administration
Customers: US Government

9. • AAR
• Raytheon
• BAE
• Northrop Grumman
• Ametek
• DRS Technical Services
• Lockheed Martin
Customers: Prime Contractors

10. • Computer CCA
• Motherboards
• Multi-­Layer
• Controllers
• Memory Modules
• High Density
• Mixed Signal
• Logic Boards
• Fiber Optics
• Microprocessors
• Conformal Coated
• Surface Mount
Circuit Board Repair

11. • UHF, VHF, HF
• Microwave
• Controllers
• Power Amplifiers
• Filters
• Base Stations
• Repeaters
• Antennas
• Beacons
• Modems
• Multiplexers
• RADAR
• Fiber Optics
• Voice Encryption
Communications and RF

12. Range Threat and Radar
• Identification Friend or Foe (IFF)
o APX-­76, APX-­100, APX-­101, APX-­103,
APX-­109, APX-­113
• Electronic Warfare/Countermeasures
o ALQ-­131, ALQ-­165, ALQ-­178, ALQ-­184,
ALR-­46, ALR-­49, ALR-­56, ALR-­64, ALR-­69,
ALE-­47, ALE-­50
• Detection and Fire Control Radars
o APS-­134, APS-­137, APS-­145, APQ-­120,
APQ-­122, APQ-­153, APQ-­159, APG-­59,
APG-­63, APG-­65, APG-­66 and APG-­68,
APG-­70

13. Mechanical DMS Resolution
• Manufacture Out-­of-­Production Components
• Rapid Prototyping
o Laser
o 3D Printing
o Machining
• Mechanical Fabrication
o Multi-­Axis VMC
o Multi-­Axis Lathe
o Laser Cut and Mark
o Finishing

14. • Switching and Linear Power Supplies
• Synchronous Motors and Generators
• Induction Motors and Generators
• Airborne Generators
• DC Motors
• Linear and Rotary Actuators
• Power Conditioning
• Airborne and Ground Based Systems
Electronic and Electro-­mechanical

15. Why Duotech?
• Lack of OEM repair support for FMS customers
• Unique combination of repair and engineering
capabilities
• No other sources offering responsive, full-­spectrum
support
• LRU replacement is not cost-­effective or fiscally
possible
o DMS resolution
o Modified and improved testing techniques for aging systems
o Remanufacturing and retrofits when practical

16. • Test and Recertification
• Test Fixture Solutions
• Component Level Repair
• Overhaul and Refurbishment
• Remanufacturing at the SRU
and board level
• Operating Stock
Management
Capabilities: APG-­66 and APG-­68
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17. • 1995: Duotech begins
servicing APG-­66/68
SRUs for NGC
• 2005: Duotech begins
servicing APG-­66/68
LRUs
• 2010: Duotech begins
USAF LRU repair
source qualification
effort
• Current Qualifications:
o APG-­66 LPRF
o APG-­66 Transmitter
o APG-­68 Frequency
Multiplier
• Qualifications Pending:
o APG-­66 Antenna
o Several APG-­68 SRUs
Duotech’s APG-­66/68 History
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18. • Electronic SRUs
• Gimbal
• Antenna
• Waveguides
• Pattern testing
• Full-­power tests
• Position and motional
response
• Alignment
Antenna: Repair
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19. Antenna: Factory New
• Waveguides
• Slotted arrays
• Uniphasers
• Azimuth and elevation
motor bands
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20. • Electronic SRUs
o Power
o Control
o Monitoring
• Waveguide and feed lines
• TWT Repair
• Full-­power testing
• Stock TWTs to decrease lead times
Transmitter: Repair
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21. Transmitter: Factory New
• Digital SRUs
• High voltage
components
• TWTs
• Insulation
components for
pressure vessel
assemblies
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22. • SRU isolation testing
• Wiring and backplane
integrity testing
• Waveguide and other RF
plumbing
• Tuning of RF SRUs
• Characterization and
simulation of the complete
unit
LPRF & MLPRF: Repair
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23. LPRF & MLPRF: Factory New
• Low Noise Assembly
• Receiver
• Waveguides and RF
plumbing
• Voltage-­controlled
oscillator

24. • Repair and performance testing
• SRU testing and repair
o Individual SRUs
o Component isolation from LRU
level testing
• Includes capabilities for the
Fire Control Computer on
legacy APG-­66 versions
• Complete backplane testing
Signal Processor: Repair

25. Obsolescence Considerations
• Customer Requirements – Top Priority
• Component traceability -­ approved substitution
(design authority, USAF, or OEM)
• Suitability of solution for specific problem
o System sustainment requirement or
expectations
o Cost-­benefit analysis comparison
o Effects on total supply chain for each solution

26. Obsolescence Mitigation Processes
• LRU Level
o O-­ and I-­level testing
sustainment and
improvement
o Spares inventory
investment
o Technology
insertions
o Form-­fit-­function
Retrofits (F3)

27. Obsolescence Mitigation Processes (cont.)
• SRU Level
o Component-­level testing reliability and sustainment
o Obsolete component traceability and replacement
with suitable substitutes
o Form-­fit-­function retrofits (F3)
Identify
Obsolete
Part
Identify
Suitable
Replacement
Part
Customer
Approval of
Replacement
Install and
Verify
Replacement

28. Delta Radar: Next Level Sustainment
• DSI-­designed and
manufactured fire control
radar
• Response to OEM dropping
support for APG-­66
• Affordable, long-­term
solution to OEM systems
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29. Delta Radar: Overview
• Retains basic system-­level
configuration of current systems
• Consolidates LPRF and Processor
into one LRU
• Retains all core radar modes
• Does not require physical or
electrical modifications for F-­16
platform
• Applications for fire control, weather,
and detection applications with
minimal modification
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30. Delta Radar: Antenna
• Updated control
electronics to mitigate
current component
obsolescence
• Duotech-­manufactured
slotted arrays and
waveguides
• Overall MTBF greater than
current systems
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31. Delta Radar: Transmitter
Existing transmitter is single point
failure tube based technology
Low Mean Time Between Critical
Failure
Expensive to remove, repair and
replace
Operational readiness is decreased
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32. Delta Radar: Transmitter
Solid State Transmitter provides graceful
degradation. No single point failure so radar
can continue to operate.
High reliability (MTBCF up to 10X). Mean
Time Between Critical Failure increases by
magnitudes over tube based transmitter.
Lower sustainment cost due to less frequent
failures and modular design. Up to 90%
Reduction in Operation & Sustainment costs
High reliability, high efficiency transmitter
leads to greater operational readiness.
Lower phase noise and higher CIF
Lower Out of Band Emission to reduce
interference from adjacent radar and other
transmitters.
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and

33. Delta Radar: LPRF and Processor
• Consolidate functions into
one LRU
• Replace all RF SRUs with
state-­of-­the-­art technology
(excluding LNA)
• Replace all digital SRUs with
DSI-­designed modules
• Calculated MTBF > 10,000
hours
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34. Testing – Past vs. Present
PAST
• Stationary equipment
• Erratic operation
• False
positives/negatives
• Low MTBF
• Obsolete technology
• Extremely expensive
• OEM-­only support
PRESENT
• Mobile, versatile stations
• Multiple system
applications
• Very high MTBF
• Expandable capabilities
• OEM Independence!
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35. Duotech Test Solution
• THE alternative to
outdated, inadequate
OEM systems
• Leverage current
technology to
maximize capabilities
• Expandable
capabilities and low
cost of ownership

36. Duotech Test Solution Applications
• Radar (APG-­66, APQ-­159,
etc.)
• IFF (APX-­100, APX-­109,
APX-­113, etc)
• EW, RWR, and ECM
(ALR-­46, ALR-­69,
ALQ-­131, ALQ-­184)
• Flight control and air data
computers
• Avionics – Indicators,
processors, displays, controls

37. Test Solution Advantages
• Acquisition Cost: < 20% cost
of OEM systems
• Compliance with system
OEM test specifications
• Interactive touch screen user
interface
• Easy expansion of test
programs
• Organizational and Intermediate
level test options
• OEM Independence!

38. • Shorter Turn-­Around Time and Lower Cost
• System-­level repair and engineering support
• Responsive to Small Quantity Repair and Engineering
Requirements
• No Conflict with New Manufacturing Requirements
• Specialize in Repair and Re-­Design of Older Equipment
• Reverse Engineer Obsolete Technology and
Unavailable Parts or Develop Technical Data
• Repair Costs Well Within Repair % Guidelines
• Less Likely to “Scrap” Repairable Equipment
Why Duotech?

39. Corporate Goals
• 100% Quality Performance
• Provide manageable solutions to obsolescence issues
• Provide long-­term support for critical systems
• Develop customer-­focused relationships that maximize
end user satisfaction
• Support the warfighter!

40. Supporting the Past
Engineering the Future
Brett Rogers
Vice President
BRogers@DuotechServices.com
Come visit us at Booths 150, 151, and 152!
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