Quote:
Originally Posted by Kymmy
Never seen the RAF do it as they hex code is programmed into the firmware and doesn't t change...[COLOR="Silver"]
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Yep there is specific equipment wich provides this capability and there is a provision for it's use in the FAA airworthiness approval advisory circular for ads-b. Specifically when a flight plan is not filed and no ATC services are requested (make of that what you will!).