GIVE US ALL YOU'VE GOT.

actual size: 1.11"wX.43"hX1.67"I

Frigid, subzero temperatures down to -40°C. Torrid heat up to +85°C.

At Sparton, we say bring it on...bring it all on. Our new AHRS-8 navigation sensor is virtually unstoppable.

This is AHRS technology at its most advanced. Utilizing MEMS-based, tri-axial magnetometers, accelerometers, and gyroscopes, our proprietary, best-in-class AdaptNav IITM sensor fusion algorithm virtually eliminates any internal application noise and external magnetic hazards. Couple these features with full temperature range calibration (-40° C to +70° C) and our user-programmable NorthTekTm Development System, and AHRS-8 gets the job done right—the first time, every time.

So go ahead...bring it on.

For information or an appointment, email productsupport@sparton.com or call 386.985.4631.

of our newest, most advanced AHRS sensor. Stop by our Booth #3436 at AUVSI Unmanned Systems NA., Las Vegas, NV, August 6-9, 2012.

For commercial and military applications in: UAV UMV UGV USV UUV AUV ROV

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NAVIGATION ANO EXPLORATION

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Empowering your Vision

AHRS-8 Attitude Heading Reference System

Description

The AHRS-8 is a fully temperature compensated Attitude Heading Reference System (AHRS), individually calibrated over the -40° to +70° C operating range, providing industry leading heading accuracy in a broad range of challenging application environments. The AHRS-8 provides superior performance by eliminating external magnetic disturbances that affect heading accuracy. It provides 3D absolute magnetic field measurement and full 360° tilt-compensated heading, pitch, and roll data. Our AdaptNav IITM adaptive algorithm provides accurate in-field calibration even in the presence of magnetic distortions due to ferrous objects, and noisy environments within the mounting platform. Sparton's NorthTekTM Development System enables the world's only fully programmable navigation sensors, allowing users virtually limitless customizations and applications. The AHRS-8 is fully pin-for-pin compatible with the Sparton DC-4 and GEDC-6 navigation sensors.

Features

• Best in class AdaptNav IITM adaptive algorithm outperforms traditional Kalman filter based approaches by providing real-time optimization of compass performance when used in varying magnetic and dynamic operating environments. AdaptNav IITM also provides revolutionary real-time noise characterizations used for drift compensation of heading, pitch and roll when in electrically and mechanically noisy environments.

• Fully temperature compensated over the entire operating range, individually calibrated from -40° to +70° C, providing industry leading heading accuracy in a broad range of application environments

• Powerful user programmable sensor customization apps via NorthTekTM Forth interpreter • 2D and 3D adaptive in-field cal providing hard and soft magnetic interference compensation • Advanced sensing technology (3-axis magnetic, 3-axis acceleration, and 3-axis gyro) • Selectable 4g or 8g accelerometer ranges, suitable for highly dynamic application environments • Built-in world magnetic model for accurate True North heading anywhere in the world • Rugged (epoxy encapsulated) construction and small physical size • Magnetic and True North heading (yaw), pitch, and roll measurement • Full 360° rollover capability • Low power consumption and power management (Sleep Mode) functionality • Supports multiple communication protocols

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1 (Rev 3.0) 5812 Johnson Lake Rd - Deleon Springs, FL - 32130 800.824.0682 - 386.985.4631

www sparton corn/no • www spartonnavex corn

Specifications Product specifications are preliminary and are subject to change

Performance data applies to 20° C, 0q Acceleration for Pitch Roll unless otherwise specified. Dynamic Heading Accuracy 1.0° RMS 1 Static Heading Accuracy 0.2° RMS (<1.0° RMS from -40° to +70° C) Heading Repeatability 0.1° RMS Dynamic Pitch/Roll Accuracy 1.0° RMS' Static Pitch/Roll Accuracy 0.2° RMS Pitch/Roll Repeatability 0.1° RMS Pitch/Roll Range ± 90°, ± 180° Accelerometer Range (Selectable) 2 +/- 4g or +/- 8g (+/- 1g) 3 Accelerometer Noise Density 126 pgtql-lz Accelerometer Bias Stability 0.023 mg Accelerometer Velocity Random Walk (VRW) 0.063 m/s Gyro Dynamic Range (Selectable) ± 480°/sec (± 300°/sec) 3 Gyro Noise Density 0.03 dpsh/Hz Gyro Bias Stability 10.8°/Hr Gyro Angular Random Walk (ARW) 1.5 deg/Sqrt[Hr] Magnetic Range ±1.2 Gauss (±900 MGauss) 3 Maximum Magnetic Inclination (Dip) ± 80° Update Rate (Samples/Sec) 100 Baud Rate 0.3, 1.2, 2.4, 4.8, 9.6; 19.2; 38.4; 57.6; 115.2 kbaud Dimensions LxWx H 42 x 28 x 11 mm (1.66 x 1.11 x 0.43 inches) Mass 16g Encapsulated or Enclosure Yes Operating Temperature -40° to +85° C Storage Temperature -40° to +85° C

Humidity Resistance 95%, 70° C, 240 hrs 9 Meets MIL-STD-202G — Method 103A, Test Condition A

Shock Resistance 1500g, 1ms Pulse, Half-Sine Wave Meets MIL-STD-202G — Method 213B, Test Condition F

Vibration Resistance .06 dB Power Spectral Density, 9.26 G RMS Meets MIL-STD-202G — Method 214A, Test Condition I/C

Power Supply Input (Unregulated Voltage) +4 to +10V DC Input Power, Operating Mode (Typical @ 4V) 330 mW 3.3V Logic UART Interface Yes 2D and 3D In-Field Calibration Yes Able To Maintain Function When Inverted Yes Quaternion/Rotation Matrix Output Yes True North Heading Output Yes NorthTekTm User Programmable Customizations Yes Includes World Magnetic Model Yes Fully Temperature Compensated Yes Individually Calibrated Over Temperature Range (-40° to +70° C) Yes

1 Dynamic heading accuracy derived from Scorsby table set for 7 RPM, 30 degrees of inclination 2 Note selection of the high range mode for the accelerometers results in decreased sensitivity, but also offers increased dynamic range. Consequently, optimal mode selection is dependent upon the intended application and associated linear accelerations present.

3 Specifications in parentheses represent current limits of calibration methodology I (Specifications subject to change without notice) %

sp.art-tpn NAVIGATION AND EXPLORATION

Applications

• Weather, data, and ocean surveillance • Electro-optical target designation sensors • Accurate vehicle attitude position and orientation sensing • Ground, sea surface and sub sea surface survey and monitoring • Precision autonomous vehicle guidance • Communications antenna pointing and tracking systems • Challenging application environments requiring high accuracy over a full range of temperature

Connections

Connector — Pin Number

Pin Name I/O Function

P1-1 V_TEST 0 3.3V regulator output for test purposes (factory use only)

P1-2 DEBUG_RXD I 3.3V logic RXD Input to Debug Port (factory use only) P1-3 DEBUG_TXD 0 3.3V logic TXD Output from Debug Port (factory use

only) P1-4 N/A Pin removed for keying P1-5 #WP_ EEPROM I 3.3V logic, active-low EEPROM write protect (the pin

has 10k(2 pull-down) P1-6 Factory Use I Do not connect (factory use only) P1-7 GND N/A System Ground

P2-1 V+ I +4 to +10V DC power supply input. Max load = 80mA P2-2 USER_RXD I 3.3V logic RXD input to User Com Port P2-3 USER_TXD 0 3.3V logic TXD output from User Com Port P2-4 #RESET I 3.3V logic, active-low reset input (the pin has a weak

pull-up) P2-5 #EINTO I 3.3V logic, active-low interrupt input (the pin has a

weak pull-up). Used for programming purposes P2-6 GND N/A System Ground P2-7 GND N/A System Ground

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3 (Rev 3.0) 5612 Johnson Lake Rd • Deleon Springs, FL - 32130 800.824.0682 - 386.985.4631

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NORTH DIRECTION

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For support, please e-mail productsupport@sparton.com

(Specifications subject to change without notice)

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Adapl- Nav Adaptive Sensor Fusion Algorithm

A New Paradigm for Navigation Sensors!

Best-in-class AdaptNavTM and AdaptNav II TM adaptive algorithms for the Sparton GEDC-6 and AHRS-8 outperform traditional Kalman filter based approaches by providing real-time optimization of product performance when used in varying magnetic and dynamic operating environments. AdaptNavTM opens the door to optimized sensor system performance and a simplified approach to platform-specific customization.

Feature Benefits

So what are AdaptNav TM and AdaptNav II TM , and why are they extraordinary?

• Sparton AdaptNavTM adaptive algorithms provide real-time (non-linear) sensor heading optimizations when used in varying magnetic and dynamic operating environments, offering unparalleled orientation accuracy under the most challenging conditions.

• Our proprietary AdaptNavTM algorithms look at the system dynamics of the sensor environment in real-time and make adjustments based on optimal sensor reliability modeling.

• AdaptNavTM improves on traditional Kalman filter based approaches by not requiring a dynamic profile to be preselected. No need to pre-select operational environment or use 'trial and error' parameter settings prior to deployment in the sensor application, eliminating the guesswork often associated with many Kalman filter based implementations.

• The AdaptNav II TM adaptive algorithm builds upon the AdaptNavTM feature functionality and provides revolutionary real-time noise characterizations used for drift compensation of heading, pitch and roll when in electrically and mechanically noisy environments (applicable to AHRS-8 only). 'Noisy' environments include magnetic materials in proximity of the navigation sensor, batteries, electric motors and high-current carrying wires as well as vibration, or vibratory rotation.

• AdaptNavTM and AdaptNav II TM assures an exceptional out-of-box experience, facilitating ease of use in the target application after completion of in-field calibration

Want to Learn More?

Please visit us on our web site at www.spartonnavex.com for more information on Sparton's entire line of navigation sensor solutions.

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NA VIC,A TION AND EXPLORATION

5612 Johnson Lake Rd • Deleon Springs, FL • 32130 800.824.0682 • 386.985.4631

1 (Rev 2.0) www sparton com/ne • www spartonnavex com

pr-t-c3r1 NAVIGATION AND EXPLORATION

NorthTek - Programmable Navigation Solutions at Your Direction!

A New Paradigm for Navigation Sensors!

Most orientation sensors only allow the user to modify basic elements, however, with Sparton's NorthTerm enabled [DC-4, GEDC-6 and AHRS-8], the user can program both basic and advanced features. Sparton's NorthTekTM technology allows the customer to write and execute custom, user-defined, application specific algorithms, right in the sensor! NorthTekTM know-how allows the designer to directly interface with real time sensor data and make custom computations specifically for their application. With NorthTekTM — you possess power unsurpassed in the industry — no other sensor offers this level of customization. Unique solutions for tomorrow's challenges —available today

Features and Benefits • Full access to all adjustable parameters. • Real time solutions environment, embedded into the module. • Allows system designer to embed custom profiles that adapt to

changing orientation, varying magnetic fields and other dynamic situations within the host device.

• Gives the user the ability to modify the startup behavior with simple [preloaded] commands.

• Ability to use the secondary sensors for emergency situation monitoring, such as being upside down or in free fall.

• Unlimited user defined capability in a full applications environment. • Programs may be stored in non-volatile memory

How does it Work? • The user designs a NorthTekTM program using a plain text editor in the Forth programming language. (Can

also be programmed from the host application). • The program is sent to the DC-4, GEDC-6 or AHRS-8 navigation sensor with a simple terminal emulator. • A single custom command starts the user application. • Normal selection of data output continues without interruption. • NorthTekTM application runs parallel with normal sensor operation. • The NorthTekTM program can be stopped, unloaded and another NorthTekTM program loaded, as many

times as desired.

Want to Learn More? Additional information on NorthTekTM is available on our web site at www.spartonnavex.com/northtek, where NorthTekTM related Application Notes and the NorthTekTM System Programming Guide reside.

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NA VIC,A TION AND EX PLCIP TIO N

5612 Johnson Lake Rd • Deleon Springs. FL • 32130 800.824.0682 • 386.985.4631

1 (Rev 1.0) www sparton.comine • www spartonnavex.corn

Applications Available for download are sample Spartan coded NorthTekTM application programs in the "Spartan App Store" on www.spartonnavex.com/northtek . The following list contains examples of currently available NorthTekTM apps, and illustrates the customization potential of this new cutting edge technology built right into each device. As an added benefit, these programs are available at no additional cost to purchasers of Sparton's DC-4, GEDC-6 and AHRS-8!

• Tare.4t" Tare.4 th is a NorthTekTM program that allows the end user to mount the DC-4, GEDC-6 or AHRS-8 in any totally arbitrary mounting configuration. The program is downloaded to the sensor while it is positioned in the desired orientation and automatically computes and stores the required settings to use the given orientation as the operational condition.

• Recal.4th Recal.4th contains programs that allow a user to swap between two Magnetic Field Calibration data sets in real time. The nominal calibration is temporarily stored by command and overwritten with a new set for alternate host configurations at runtime. The program is easily extended to be able to handle multiple sets of calibration data for multiple operating modes of the host device.

• Cal3d.4th Cal3d.4th contains programs that allow a user to perform a 3D in-field calibration with a simple serial port. The program is interactive and provides helpful prompts to instruct the user at each step of the process. This program serves as a baseline for user expansion for custom user calibration.

• Turtle.4th Turtle.4 th is a sample program that tests for the sensor being upside down. This sample program illustrates how to access the raw sensor data in the sensor and use it to implement a safety or convenience feature in addition to the normal sensor operation.

• FF.4th FF.4th is a free fall detector program. This program illustrates how to access the raw sensor data and how to access the matrix math library to compute a vector magnitude on the 3D acceleration vector. This vector is compared to a threshold to determine if the sensor is in free fall, and if so, a warning is issued on the serial port.

• Filtere Filter.4 th illustrates how to obtain the processed sensor data, make real time decisions based on that data, and output results based on that data. This program reads the current heading at startup and outputs a new heading only if the heading changes by more than 10 degrees. Easily extendable to other criteria, this program serves as a baseline for controlled output data based on conditions, rather than streaming data.

• NMEArpt.4th The NMEArpt.4th program implements two backward compatibility features to emulate the startup behavior of the SP3004 sensor. This program produces the "BX" baud rate check string at startup and also provides the repeating NMEA output at startup.

• adaptnavinite The adaptnavinit.4th program provides for environmental noise characterizations used for drift compensation of heading, pitch and roll when in 'noisy' environments. 'Noisy' environments include magnetic materials in proximity of the compass, batteries, electric motors and high-current carrying wires. Also includes select adjustments to AdaptNav TM sensor fusion parameters for improved overall performance. This script is recommended for all GEDC-6 users (this program is not applicable to the DC-4 or AHRS-8).

These apps are only a small sample of the power of NorthTek's TM potential and its benefits. The possibilities of NorthTekTM technology are virtually endless!

(Specifications subject to change without notice) 44/1 s pa r- ton NAVILATION AND EXPLORATION