NAT’s extensive Multi-User Audio Management System controllers offer a wide range of features optimized to fit the widest possible cross-section of aircraft applications. NAT controllers are used in all types of light, medium and heavy helicopters as well as twin, turboprop, commuter and jet aircraft. Some models provide users the ability to customize controllers to meet unique needs and missions.
Dual Channel: Specifically designed for special mission applications, the AMS42 and AMS44 have dual radio controls to independently select radio transmit and receiver audio. The dual channel configuration provides independent radio control for pilot and co-pilot within the space of a single controller plus intercom support for the crew and five passengers. Each pilot can choose the communications set-up specific to their role in the mission. The pilot can be selected on COM 1 while the co-pilot transmits and receives on FM 2 for true split transmit capabilities.
A full selection of receiver select switches are provided for each channel to further enable the pilots to remain independent from each other. The AMS42 and AMS44 have transmit capability for 5 COMs with “Auto-receive” function. The AMS44 has select monitoring switching for each COM plus 5 NAVs. The AMS42 has receiver select switches for the first 4 COMs. COM 5 is set up for auto-receive only. NAV inputs are selectable by internal dip switches. The AA92H and AA94 series provide the ability to customize controllers to meet specific needs and missions.
Intercom: An integral intercom features one of the highest headphone outputs in the industry with up to 500 mW per channel. Single channel controllers support 2 crew plus 4 passengers, dual channel controllers support 2 crew plus 5 passengers. The intercom system features NAT’s unique high performance Active Noise Filtering (ANF™) system to achieve the best possible intercommunications in noisy aircraft environments. Voice activated squelch (VOX) uses NAT’s voice-tracking circuit that combines low noise audio processing with selective voice-band squelch triggering for effective hands-free ICS operation. Dual channel controllers provide a Pilot Isolate mode to allow the pilot to separate from the intercom system for complete isolation.
Direct Inputs: Two direct inputs accommodate functions such as Rad Alt, GPS Alerts, Low Rotor, or Telephone ringer.
Emergency Mode: Front panel selectable emergency mode switches the pilot (and co-pilot in Dual Channel models) headphones directly to the selected radios. Mic control is maintained via the transmit select switch for each available radio.
Internal Audio Alerting: Three Internal alert tone generators are available in the AMS43, AA95 and AA97 series: single-tone, two-tone, and timed siren (for DH warning). These alerts are used to supplement airframe warnings such as low rotor RPM, engine out, or DH alerting, but can also be used for functions such as passenger call alerts.
Tray Mount Option: AMS series audio controllers can be ordered in an aircraft standard 6.25″ avionics tray mount package for general aviation applications. Add the “T” suffix to the part number and order the tray style installation kit.
Manufacture Retail Price – $4,005.00
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