Cable TV Measurements (Option K20) R&S FSL
1300.2519.12 2.82 E-11
Fig. 2-59 Digital TV CCDF measurement
TV Analyzer Measurements
The measurement here is set up to carry out multiple channel measurements of TV networks. The
measurement provides a fast, automatic change of the measurement channel in order to support a
quick succession of measurements.
The following measurement type is provided:
Tilt measurement
Tilt measurement
This measurement can determine the amplitude response of the CATV network by measuring the
channel power of every channel. Both analog and digital TV channels can be measured. The setup
configuration allows to limit the frequency range or to choose particular modulation standards in order to
measure only a channel subset of the TV network.
The channel levels are measured in a series of zero–span measurements. Each channel is measured
using the information stored in the channel table (modulation standard). Therefore the use of a channel
table is mandatory. Channels with the modulation standard < unused > are not measured (for details
on modulation standards refer to chapter "Instrument Functions", section "Cable TV Measurements
Option (K20)". Depending on the set modulation standard one the following measurements is used
internally by the firmware:
analog TV: Carriers measurement
digital TV: Channel Power measurement
The measurement result is displayed in form of a bar graph. The colors of the bars indicate the signal
type of the modulation standard.
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