Left: LOFAR 144 MHz image of NGC 3298 produced using International Stations (IS). The beam (shown in the inset) is 3.5″ × 3.5″, and the rms noise is ∼200 μJy beam⁻¹. Contours are at 3, 6, 12, 24, 48 × rms. Right: SDSS MaNGA IFU flux data of NGC 3298. The observed flux (blue line) is the mean of all spaxels with S/N > 15 and is shown with the best fit Firefly model (orange line) with the MaStar stellar library (see Sect. 2.2). The residuals (grey line) show only minor, non-systematic differences.