S7 here, listening in DSB since the carrier is barely there. A couple of "Man Cave Radio" ID's @ 0111z
"Doom and Gloom" by the Stones @ 0112z.
Off for a few seconds at 0130z, then back on with a better carrier and into "Blurred Lines" again. ID @ -0134z. Seems to be a replay. Listening in AM now.
Off @ 0146z.
DSB = Double Side-Band. Both side-bands are present, both containing the same information. Same as an AM signal, except the carrier is suppressed/nulled.
You can use DSB,LSB, or USB to receive. Listening in DSB can give poorer reception than listening to a single side-band, due to phase differences between the two side-bands causing fading.
It's also possible to have different programming on each side-band which would be ISB (Independent Side-Band). I've only heard it a handful of times in 40 years of listening.