Cable TV Measurements (Option K20) R&S FSL
1300.2519.12 2.50 E-11
5. If you use an analog TV test transmitter, configure it to transmit a suitable signal:
Choose a reasonable, not too high output level.
Set the transmitters's vision carrier frequency to 210.25 MHz.
6. If your test transmitter is not capable of this or if you want to connect the R&S FSL to your CATV
network, which does not contain a suitable signal, change the default analog TV modulation
standard:
Press the MEAS key.
Press the Analog TV softkey.
Press the Analog TV Settings softkey.
Change the default analog TV modulation standard as described in section Analog TV
modulation standards in order to adapt it to the signal you provide for the R&S FSL.
Spectrum measurement
This measurement gives an overview of the active measurement channel. It is a swept measurement
like in the Spectrum Analyzer mode. All parameters are set automatically according to the used
modulation standard. The spectrum is displayed in a full screen trace.
Test setup:
Refer to the section Analog TV test setup.
Procedure:
1. Press the MEAS key.
2. Press the Analog TV softkey.
3. Press the Spectrum softkey.
4. To adjust the input attenuator, press the Adjust Attenuation softkey.
5. Press the FREQ key.
6. Enter 210.25 MHz for the vision carrier frequency of the input signal. Note that this frequency is not
the middle of the shown span.
7. Press the RUN key.
The spectrum of the input signal is displayed.
The vertical lines mark the vision carrier (VC) and sound carrier (SC1 and SC2) frequencies. They
mark the ideal frequencies according to the chosen standard and RF frequency, not the measured
ones.
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