Afaik, It simply splitting the L band frequency band ( 950 - 2150 MHz) in to 4,8,16,32 channels. The working for the Satcr & Superlnb is almost same expect we need to set the channel manually in satcr , where in superlnb it auto programmed & its frequency channel selected by stb/,lnb everytime. Might be Tataplay's rnd found some issue supporting auto select the lnb channel that is why they are replacing & marking each stb with ch1,2... 3,4 etc in satcr replacement.