Used for network component development and receiver tests, R&S CLGD signal generator can simulate channel loading scenarios composed of DOCSIS 3.1, digital (J.83/A/B/C), and analog TV signals in downstream as well as DOCSIS 3.1/3.0 signals in upstream. Frequency range of 47–1,218 MHz (1,794 MHz optionally) for downstream enables simultaneously generation of up to six 192 MHz DOCSIS 3.1 channels or up to 160 QAM channels. Individual channels are continuously modulated in real-time.