Tektronix RTX130B, Руководство по обслуживанию

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Performance Verification
3-16
RTX130B QAM & VSB RF Signal Generator Service Manual
7. Set Play > Update > On .
8. Select Play > Clock to open the Clock dialog box.
9.
In the Clock dialog box, select
ExtRef 10
.
10. Press the Play/Pause button on the RTX130B to start playing the test64.TRP
file.
11. Verify that PLL unlock error does not occur on the RTX130B.
12. Start the TS Compliance Analyzer on the MPEG analyzer.
13. In the Open Transport Stream dialog box, select Real-time Analysis , and
then make the following settings:
Interfaces DVB Parallel . . . . . . . . . . .
Interface Settings Time Stamping . . . .
14. Click the OK button.
15. Verify that the hierarchic view is displayed on the MPEG analyzer screen
and that no error messages appear. In addition, verify that the bit rate is
64 Mbps and the packet size is 188 bytes.
NOTE . Ignore Program 3 and PID 120 (0x78) errors in the hierarchical view
because these are caused by the original test40.TRP file.
16. Change the clock source setting on the RTX130B and output frequency
setting on the function generator with the following and then repeat step 15.
Clock source setting (RTX130B) Output frequency setting (function generator)
ExtRef 27 27 MHz
Ext Ref 8.126984 MHz 8.126984 MHz
Ext P Clk 8 MHz
17. Change the output frequency of the function generator to 32 MHz.
18.
Select
Play
>
Clock
on the RTX130B to open the
Clock
dialog box.
19. In the dialog box, select Ext S Clk .
20.
Repeat step 15 and verify that all items in the
Priority 1
row are green.
NOTE
. Ignore 2.3.a PCR Repetition and 2.5 PTS errors in the Priority 2 row.