Another 8992 kHz HF net sign off with Andrews at 0027Z with authentications in the audio clip below.
E-4B ORDER 66 takes off from Shaw AFB, South Carolina and flies to Volunteer (Knoxville, Tennessee), Pocket City (Evansville, Indiana) and Peoria, Illinois. After Peoria, ORDER 66 turns off the ADS-B and appears to head home for Lincoln, Nebraska.
Usual stuck car horn sound in the Andrews audio, possibly a heterodyne from multiple transmitter sites. In the SDR Console screenshot below Andrews does a test count on 8992 kHz. I believe the thin vertical lines in the circled trace correspond to the horn sound. The horizontal lines are the digits/syllables in the count. You can see the HF-DL data packets from Reykjavik, Iceland at 8977 kHz on the screen.
In the audio clip, Andrews initially acknowledges its station ID in the clear and then replies as BENEFITS to FIRST DOOR which I believe is the E-4B closing shop to land at Lincoln.
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