• Lightweight - under 11 lbs for complete system
• Synthesized digital tuning
• Internal, field-upgradeable, MIL-STD-1553B compatibility (input and output functions) with retention of analog interface
• Optional Night Vision Imaging System (NVIS) compatible control heads
• Integrated sense-loop antenna, dual antenna available for dual installation
• Dual identification tone filter enhances Morse tones for positive aural identification even with noisy reception conditions
• 100- to 2199.5-kHz frequency coverage in 500-Hz steps; positive digital selection
• 2 preset emergency channels
• Easy retrofit; uses existing control wiring in most cases
• Internal Quadrantal Error Control (QEC), connector-strapped; airframe wiring sets QEC
• Meets RTCA MOPS and FAA TSO
• DO-160 rated for hard mounting in helicopters and fixed wing aircraft
• High reliability; predicted MTBF per MIL-HDBK-217E at 45°C is 8681 hours for AIC, and 2623 hours for ARW.
• Enhanced maintenance: hinged chassis for easy access to modules for fast fault isolation

The Rockwell Collins AN/ARN-149(V) is the first Low Frequency Automatic Direction Finder (LF/ADF) to provide an internal, field upgradeable MIL-STD-1553B Digital Multiplex Bus capability.

This system, consisting of a receiver, control, antenna, and mount, provides a low-frequency automatic direction finding function in a lightweight, easily installed set.

The all solid-state receiver eliminates all moving parts such as goniometers, synchros, and mechanical tuners. Quadrantal Error Correction (QEC) is set by aircraft connector strapping, eliminating corrector modules and airframe-specific internal adjustments. The antenna combines the loop and sense antenna and preamplifier functions in one compact housing, thereby eliminating expensive sense panels, couplers, and special prefabricated cable assemblies. A dual version of the same antenna is also available in one aerodynamic package. The receiver is controlled by a four-wire serial bus from the control. The control is available with a 28- or a 5- volt light panel, and with optional night vision goggle (NVG) compatibility.

The ARN-149 system is utilized by the USAF and Army in fixed and rotary wing aircraft as well as in many countries around the world. Aircraft installations include the C-130, AH-64, and UH-60.

Key Features

• Built-in power supplies to provide primary power to the unit under test (UUT) from a single 115 V ac, 400 Hz source.
• A built-in control simulator permits easy and rapid frequency, volume, and mode selection from the front panel of the test set.
• A built-in solid-state angle position indicator provides accurate, easy-to-read bearing information.
• The system control may alternatively be utilized and tested by connecting it to the main I/0 cable.
• An external RMI may be connected to the test set for complete system test and simulation.
• The system control may also be connected to the test set and its performance evaluated.
• Addressing and control functions for the MIL-STD-1553B bus are available from the front panel.

Choosing Your Receiver/Mounts/Controls & Antennas

Support Offerings

Product Information Material is normally available at no charge and can be obtained by contacting GS Customer Relations:

Phone: 800-321-2223 or (319)-295-5100
Fax: (319)-295-4777
Email: <response@rockwellcollins.com>
Website: http://www.rockwellcollins.com/gs