Thanks a lot , let’s wait until the release of S-band for the same or other area to find out more, also it’s important to discover more via SNAP-14 release as I found with the Step Forum, that the new upcoming version will carry more for NISAR processing, then we could find more.
My doubts are , that this is the first two radar bands in the same satellite based on my information, and I’m afraid of intersections of return pulses.
S-band (~2–4 GHz) and L-band (~1–2 GHz) do not overlap in frequency, so they won’t intersect spectrally. However, at the antenna/receiver, we can see interaction