Message posted by Joerg (Webmaster) (Member since 06/08/2002) on March 24, 2021 at 21:55:12 PST:

The aircraft was ID'd only by the 6-digit Mode-S code. It did not transmit a call sign/registration number. I suppose operating only inside the ranges they can send whatever Mode-S code they want since they are in USAF controlled air space. But during the Sept 2020 visit they did a fairly extensive round trip east of the ranges in public air space with the wrong code. I suppose with the numbers being only one binary digit off they could always say: "oops, our bad; set the wrong code". It happens sometimes with civilian aircraft. I have a number of known mis-codes in my database.

In Reply to: Re: N378AF over Groom Lake (aka N378AX) posted by Duke on March 24, 2021 at 15:33:16 PST:

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