Tektronix RTX100A, Service Manual

Page: 70 / 160

Performance Verification
3-24
RTX100A ISDB-T RF Signal Generator Service Manual
Checking the Output Level and Error.
34. Use the 75
Ω
BNC cable to connect the RF Out connector on the RTX100A
to the RF INPUT on the ISDB-T analyzer. See Figure 3-12.
RTX100A rear panel
ISDB-T analyzer (VP-8480A)
75
Ω
BNC cable
Figure 3-12: Equipment connection for checking the output level and error
35. Select ISDB-T/ASI > RF Parameter on the RTX100A to open the ISDB-T
RF Parameter dialog box.
36. In the dialog box, set Center Frequency to 13 .
37. Open the ISDB_T_M3.rmx file on the RTX100A.
a. Select File > Open to open the Select File dialog box.
b. In the dialog box, navigate to the D:\ISDB-T directory, and then select
the ISDB_T_M3.rmx file.
38. Press the PLAY button to start playing the file.
39. Set the ISDB-T analyzer demodulation (DEMODSET) settings as indicated
below:
Mode 3 . . . . . . .
GI 1/4 . . . . . . . . .
Data AIR . . . . . . . .
RS ON . . . . . . . . .
Carrier ALL (Loss: OFF) . . . . . .
40. Set the ISDB-T analyzer other settings as indicated below:
Display Constellation . . . . . . . . . . . .
Measurement mode REPEAT Mode . . .
Input CH 13 . . . . . . . . . . .
41.
After the Synchronization Detect status is “locked”, start measurement.