Approximately 85% of FAA Alaska’s NDB equipment is Nautel.
Nautel’s NDB Systems offer:
- Constant field strength output
- Automatic resistance matching
- Sophisticated graphic user interface
- Dual (main/standby) configuration
- Synthesized exciter with DDS technology
- Extensive automatic fault monitoring
- Extensive remote control and monitoring
- High overall efficiency (70% or better)
Learn more about NDB Systems
Non-Directional Radio Beacons
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Antenna Tuning Units
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FAA Alaska Selects Nautel ATU-HP
for Three Locations
In February 2008, due to the catastrophic failure of their existing ATU, the Alaska Region of the FAA elected to purchase an ATU-HP from Nautel for installation at St. Paul Island, Alaska in April 2008. This new generation ATU was selected for its compatibility with and support of the incumbent Nautel ND2000 transmitter – approximately 85% of FAA Alaska’s NDB equipment is Nautel.
The Nautel ATU-HP at FAA site, St. Paul Island, Alaska.
Based on the performance of the ATU-HP at St. Paul Island, the Alaska Region of the FAA purchased two additional units for Deadhorse and Point Lay, Alaska. These were installed in September 2010, flight checked in March 2011 – delayed due to darkness – and are operating trouble-free to date.
Deadhorse, Alaska (left) and the Nautel ATU-HP at Deadhorse FAA site (right).
After extensive research into the most common antenna-related field issues, the ATU-LP and ATU-HP automatic antenna tuning units were developed to:
- provide industry-leading, state-of-the-art antenna impedance matching to the associated Vector NDB transmitters under all weather conditions
- mitigate the effects of seasonal ground conductivity variations and the build-up of salt and other environmental contaminants on antenna insulators
- provide a constant and stable coverage when used in conjunction with Vector NDB transmitters
To learn more about the development, testing and functionality of the ATU-LP and ATU-HP automatic antenna tuning units please read more in the following white paper Engineering the All Weather Antenna Tuning Unit (ATU)