Observation 5941460: NOAA 9 (15427)

Regarding Observation 5941460
Would someone please care to comment on this observation, despite NOAA 9 no longer being in service, as I’m curious as to their origins?
There appears to be three distinct traces, with audio:
(a) An intermittent drifting signal displaying four tramlines, approx’ on the centre frequency, and
(b) An intermittent drifting signal displaying two tramlines, approx’ 30KHz below (a) frequency, and
(c) Multiple bursts throughout the pass displaying horizontal lines, approx’ following the frequency of (a)
Thanks in advance.

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