Cable TV Measurements (Option K20) R&S FSL
1300.2519.12 4.214 E-11
Carriers – analog TV
This measurement determines the carrier powers (vision carrier, one or two sound carriers) and their
frequencies in analog TV channels and compares them against limits. The sound carrier power
frequencies are displayed relative to the measured vision carrier power frequency. The following
parameters can be set:
Parameter
channel number
limits
The basic procedure is the following:
1. Press the MEAS key.
2. Press the Analog TV softkey.
3. Press the Carriers softkey.
4. To change the limits, press the Edit Table softkey.
5. To adjust the input attenuator, press the Adjust Attenuation softkey.
6. Press the RUN key.
For a more detailed description of this measurement type refer to chapter "Advanced Measurement
Examples".
C/N – analog TV
This measurement determines the carrier–to–noise ratio. The measurement consists of two sub–
measurements: reference power measurement and noise measurement. The following parameters can
be set:
Parameter
reference power
measurement method
(In–Service, Off–Service, Quiet Line)
measurement frequencies
(CF, Span)
noise reference bandwidth
noise floor correction
limits
The basic procedure is the following:
1. Press the MEAS key.
2. Press the Analog TV softkey.
3. Press the C/N softkey.
4. To change the setting of the reference power:
– Press the Reference Power softkey.
– Press the Reference Channel, Same as Meas Channel, or Manual Reference Power softkey
and, if necessary, enter a value.
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