Via a recording. I had it at 6935.5AM. The broadcast began at 1219 with band playing the Marine Corps Hymn, the carrier disappeared at the end of the Hymn at 1224.
It returned at 1227 and a mixed choir sang the Air Force Song. After the Song ended, the carrier ended, too.
Then, at 1233, a bugle played Taps twice, the second time more slowly than the first.
It was over at 1235t.
7600 Hz covered the signal. Quality ranged from unusable due to a weak signal, to 35443.
Ron