Cable TV Measurements (Option K20) R&S FSL
1300.2519.12 2.74 E-11
Parameter Description Definition
EVM (rms) root mean square of error vector
magnitude
EVM (peak) peak of error vector magnitude
Carrier Frequency
Offset
frequency offset between the
received digital TV signal and the
frequency setting
Symbol Rate Offset frequency offset between the
measured symbol rate of the
received TV signal and the set
symbol rate
Test setup:
Refer to the section Digital TV test setup.
Procedure:
1. Press the MEAS key.
2. Press the Digital TV softkey.
3. Press the Overview softkey.
4. To magnify one parameter, press the Zoom softkey and activate the parameter. To go back to the
default setting, activate None.
5. To change the limits, press the Edit Table softkey.
6. To adjust the input attenuator, press the Adjust Attenuation softkey.
7. Press the RUN key.
The Table 2–7 lists the result parameters: meas(/) is the measured signal and ref(/ ) the ideal transmit
signal that is used for comparison; / means that the continuous signals are sampled at symbol instants
symbol
Tt =
.
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