Performance receiving digital modes Is there data on any or all SDR receivers having better performance on any digital modes close to their minimum SNR?
I expect any receiver with better specifications will do better as far as IMD and gain variations due to some AGC action on strong signals inside the AGC loop. Leaving aside strong interfering signals, is there any measurable performance difference in decoding if the signal does not have to go through standard receiver audio stages and a software DSP? My recollection of a QST article showed no difference in a high quality A/D converter vs computer A/D. Is there a limiting factor in signals getting processed into audio first? Thanks. Charles Preston KL7OA
