Is this possible to direct trans modulate DVB-S/S2 -> QI into -> DVB-C/C2 signals without doing it the way DVB-S/S2->Demodulator.ic-Transport Stream -> Modulator.ic-Transport Stream -> DVB-C/C2 ? Qpsk and Qam are similar, rf tuners the same, trouble within IQ. Direct conversion should be multichannel and cheaper within CATV systems.
This should be impossible in most cases due to different modulation and coding schemes.
For example, DVB-S2 uses single carrier phase modulation wheras DVB-C2 uses OFDM modulation. There is no way to convert single carrier to OFDM without going to the digital domain.