Radio spectrograms from all available space-borne observatories. Panels 1 and 2 show Stokes I and the net polarization (Stokes V/I) from PSP. Panels 3–5 show the Stokes I measurements from Solar Orbiter, STEREO A, and Wind, respectively. The different bursts are indicated in panel 1. The TII bursts are marked in other panels by rectangular boxes of red (TII(1)), yellow (TII(2)), and orange (TII(HB)).