Performance Verification
VITS100 NTSC VITS Inserter Instruction Manual 5–19
10. Adjust the spectrum analyzer external attenuation amplitude by the amount
noted in step 9.
11. Connect the precision high-frequency terminator to the Device Under Test
connector on the RF Bridge.
12. Check that the frequency response from 0 MHz to 5 MHz is 40 dBm.
13. Return the spectrum analyzer frequency marker to 5 MHz, if necessary.
14. Remove the precision high-frequency terminator from the RF Bridge.
15. Connect the Device Under Test connector on the RF Bridge to the VITS
inserter PROGRAM IN.
16. Check that the marker reference level readout on the spectrum analyzer is
36 dBm down.
17. Connect the precision high-frequency terminator to the VITS inserter
PROGRAM OUT.
18. Push the VITS inserter BYPASS.
19. Check that the marker reference level readout is 36 dBm down.
20. Push the VITS inserter BYPASS switch to go back to program video.
21. Remove the precision high-frequency terminator from the VITS inserter
PROGRAM OUT.
22. Connect the Device Under Test connector on the RF Bridge to the VITS
inserter PROGRAM OUT.
23. Check that the Marker Level readout is 36 dBm down.
24. Connect the Device Under Test connector on the RF Bridge to the VITS
inserter MONITOR OUT.
25. Check that the marker level readout is 36 dBm down.
26. Set the spectrum analyzer controls as shown in Table 5–3.
Table 5–3: Spectrum Analyzer Settings
Control Setting
Center Frequency 10 MHz
Reference Level 0 dB
Freq Span/Div 10 MHz