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Time To Bite The Bullet?

Unless youve been living under a rock, youve probably heard of ADS-B, or Automatic Dependent Surveillance-Broadcast. As of January 1, 2020, youll need this equipment to routinely fly in U.S. airspace where the FARs now require a working Mode C transponder. The FAA rule mandating ADS-B in 2020 went into effect in 2010, so theres little argument that operators havent had enough warning about it, and its not likely the FAA will change the deadline. There are two flavors of ADS-B, the in and out kinds. For now, only ADS-B Out is required in 2020; ADS-B In is optional. Both flavors are operational today, as the two coverage maps below demonstrate.

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Key Takeaways:

  • ADS-B Out equipment is mandated for U.S. airspace by January 1, 2020, in areas where a Mode C transponder is required, with ADS-B In remaining optional.
  • Two primary ADS-B Out technologies exist: 978 UAT (for U.S. airspace below 18,000 ft, provides FIS-B but requires a separate Mode C transponder) and 1090 ES (for all altitudes and international use, but does not inherently provide FIS-B).
  • Selecting an ADS-B solution is a complex decision, dependent on aircraft usage, existing avionics, the need for a WAAS GPS position source, and the specific operational requirements and limitations of each technology.
  • Although more affordable ADS-B Out options are emerging, the article suggests demand and prices are likely to increase as the compliance deadline approaches.
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Unless you’ve been living under a rock, you’ve probably heard of ADS-B, or Automatic Dependent Surveillance-Broadcast. As of January 1, 2020, you’ll need this equipment to routinely fly in U.S. airspace where the FARs now require a working Mode C transponder. The FAA rule mandating ADS-B in 2020 went into effect in 2010, so there’s little argument that operators haven’t had enough warning about it, and it’s not likely the FAA will change the deadline. There are two flavors of ADS-B, the “in” and “out” kinds. For now, only ADS-B Out is required in 2020; ADS-B In is optional. Both flavors are operational today, as the two coverage maps below demonstrate.

You or a pilot you know may already be flying with ADS-B In, perhaps using a portable receiver, but that’s a relatively easy and inexpensive option, at least as far as aviation is concerned. Until recently, there weren’t many low-cost options for ADS-B Out. That’s changing, however, and a new crop of products from various manufacturers may be as good and inexpensively priced as we’re going to see before the deadline. In the four-plus years before the deadline, it’s highly likely other products will be developed and brought to market. But as the deadline looms closer, demand will rise, as may prices. Is it time to make what may be a 20-year, $10,000 decision, and commit to a specific ADS-B solution?

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