Demonstration of SIMPL’s optional higher dynamic range mode on a LBA dataset. Panel a shows an image of a type II solar radio burst at 77 MHz, obtained with 195.3 kHz frequency averaging and 1 s time integration, following initial self-calibration on longer time and frequency intervals. This image, before differential self-calibration, has a dynamic range (DR) of 86. Panel b shows an image of the same type II burst at the same time and frequency after subsequent differential self-calibration, illustrating significant improvement in imaging fidelity with DR 467. The cyan circle denotes the optical solar disc. Contours are drawn at 1%, 3%, 5%, 10%, 20%, 30%, 50%, 70%, and 90% of the peak intensity. The restoring beam is shown in red in the bottom-left corner of each panel. The enhanced DR has enabled reliable detection of the faint source (marked 2), which is an order of magnitude fainter than source 1.