The DOCSIS^®3.1 standard is driving the trend in cable TV networks toward all-IP. The R&S^®SFD generates a DOCSIS 3.1 OFDM broadband signal as well as the previous cable signals such as DOCSIS 3.0, digital and analog TV channels in the downstream. In the upstream, it generates a DOCSIS 3.1 or DOCSIS 3.0 signal.

The R&S^®SFD produces signals for DOCSIS 3.1, DOCSIS 3.0, digital cable TV in line with J.83/A/B/C and analog cable TV. Its downstream frequency range is 47 MHz to 1794 MHz for DOCSIS 3.1 and 47 MHz to 1218 MHz for DOCSIS 3.0 and TV. Within this range, the R&S^®SFD generates a DOCSIS 3.1 channel with up to 192 MHz bandwidth. The level, frequency, forward error correction (FEC) and constellation of this channel can be set. The R&S^®SFD can alternatively produce a digital, QAM-modulated or analog TV signal. The DOCSIS 3.1 channel or digital TV channel is modulated in realtime. The data to be transmitted can be fed in via IP or internally generated by the R&S^®SFD.

The upstream frequency range is 5 MHz to 204 MHz. Within this range, a DOCSIS 3.1 orthogonal frequency division multiple access (OFDMA) signal can be generated in realtime. A DOCSIS 3.0 TDMA or CDMA signal can be produced in realtime in the 5 MHz to 85 MHz range.

Features:

• Signal generation in the downstream
• Realtime modulation of DOCSIS3.1 and J.83/A/B/C
• Cable modem data traffic simulation in the upstream
• Realtime modulation of DOCSIS3.1 and DOCSIS3.0
• All OFDMA, TDMA and CDMA signals
• Trigger function for burst timing control
• Signal interference and distortion simulation
• Configurable bit error rate
• White noise and phase noise
• AC hum
• Tilt
• Powerful ARB generator
• Up to 200 MHz bandwidth
• 256 Mbyte memory