RTX100A ISDB-T RF Signal Generator Service Manual
8. Use the Peak Search function of the spectrum analyzer to verify that the
carrier appears at 473.143 MHz on the screen.
9. Turn off the Carrier output of the spectrum analyzer.
10. Adjust the DAC(I) Offset and DAC(Q) Offset values so that the carrier
leakage on the spectrum analyzer is less than - -80 dBm.
11. Change Reference Frequency (output channel) on the RTX100A and center
frequency on the spectrum analyzer as listed in Table 4-2, and repeat steps 5
through 10.
NOTE. The center frequency settings for the spectrum analyzer are indicated by
boldface in the Table 4-2.
Table 4-2: Output channel and center frequency settings
Center Frequency
(MHz)
CH
13
473.143
14
479.143
15
485.143
16
491.143
17
497.143
18
503.143
19
509.143
20
515.143
21
521.143
22
527.143
23
533.143
24
539.143
25
545.143
26
551.143
27
557.143
28
563.143
29
569.143
Center frequency
(MHz)
CH
30
575.143
31
581.143
32
587.143
33
593.143
34
599.143
35
605.143
36
611.143
37
617.143
38
623.143
39
629.143
40
635.143
41
641.143
42
647.143
43
653.143
44
659.143
45
665.143
46
671.143
Adjustment Procedures
Center frequency
(MHz)
CH
47
677.143
48
683.143
49
689.143
50
695.143
51
701.143
52
707.143
53
713.143
54
719.143
55
725.143
56
731.143
57
737.143
58
743.143
59
749.143
60
755.143
61
761.143
62
767.143
- - - - - -
- - - - - - - - - - - - - - - - - - - - - -
4-3
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