Dynamic spectra of PSRs J1012+5307 and J1509+5531 from the LOFAR core and DE602, respectively, illustrating the challenges inherent to scintillation detection at low frequencies. While scintillation is clearly visible in the PSR J1509+5531 data, higher frequency resolution is required to allow for the accurate determination of the scintillation parameters. For PSR J1012+5307, the resolution is sufficient, but the remaining S/N for individual scintles is insufficient to allow for a clear analysis. While the dynamic spectrum does combine data from all scintles across the observation, it still returns a S/N that is too low for reliable measurements in this case.