The R&S FSL-K20 CATV option provides easy-to-use push-button measurements for analog and digital cable TV networks as well as for analog TV transmitters.

Channel tables

Channel tables make it possible to preconfigure the R&S FSL for a specific network:

• Channel numbers can be assigned to frequencies
• The signal type for each channel can be defined (analog TV signal, digital TV signal) as well as even more detailed properties such as the position of test lines

The R&S FSL is set up correctly just by entering the channel number. Channel tables can be easily copied and multiplied between different instruments.

Video scope function (video line analysis) and vision modulation

A dedicated video line trigger allows selected lines of the video signals to be displayed for detailed analysis. The vision modulation measurement further determines the modulation depth and residual picture carrier level.

Digital TV signals

A table provides a quick overview of the most important modulation quality parameters such as MER, EVM (both peak and RMS), carrier frequency offset and symbol frequency offset.

Typical I/Q modulator impairments such as quadrature offset or gain imbalance can be evaluated from the modulation error table (see picture). A constellation diagram enables further analysis of faults and their cause.

*The image is for reference only. See product specification for details.