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when toggle format what by license comment
Dec 28, 2018 at 21:56 comment added user71659 This isn't true if you have Mode S EHS or ADS-B, both of which downlink Mach/IAS. The former is required for larger aircraft in Western Europe, the latter is a FAA requirement by 2020.
Dec 28, 2018 at 18:21 history answered Ralph J CC BY-SA 4.0