5-4 ISDB-T and BER Verification, Options 30 and 79 Option Verification
5-8 PN: 10580-00255 Rev. J MT8212E and MT8213E MM
11. Using the Down Arrow key, step through the selection list until the “Digital_Broadcast” option is
highlighted.
12. Press the Set key.
13. Using the Down Arrow key, step through the selection list until the “ISDB-T_1layer_1ch” option is
highlighted.
14. Press the Set key.
15. Set the frequency to 473.14285714 MHz.
16. Set the level to –20 dBm.
17. Confirm that the Modulation On/Off key and the Output key both have LEDs On.
18. Set the mode of the MT821xE to ISDB-T Signal Analyzer. Press the Shift key, the Preset (1) key, and
then press the Preset submenu key to reset the instrument.
19. Confirm that the Channel is set to 13.
20. Press the Meas Selection main menu key, then press Modulation Analysis.
21. On the MT821xE, press the Frequency/Level main menu key, set the Reference Level to –20dBm.
22. Press the Meas Setup main menu key and then the Meas Mode submenu key.
23. Use the rotary knob to highlight “Average” and then press the Enter key.
24. Set the Average Count to 10.
25. Wait until the Average (10/10) appears at the top of the display.
26. Record the frequency error as shown on the MT821xE display into Table A-20, “ISDB-T Signal Analyzer
Frequency Accuracy” on page A-16.
27. Press the Frequency/Level main menu key, and set the MT821xE to Channel 38.
28. Set the frequency of the MG3700A to 623.14285714 MHz.
29. On the MT821xE, press the Execute Measure main menu key.
30. Wait until the Average (10/10) appears at the top of the display.
31. Record the frequency error as shown on the MT821xE display into Table A-20.
32. Set the MT821xE to Channel 62.
33. Set the frequency of the MG3700A to 767.14285714 MHz.
34. Press the Execute Measure main menu key.
35. Wait until the Average (10/10) appears at the top of the display.
36. Record the frequency error as shown on the MT821xE display into Table A-20.
37. On the MG3700A, set the frequency to 473.14285714 MHz and set the output level to –50 dBm.
38. On the MT821xE, press the Frequency/Level main menu key, then press the Pre Amp submenu key to
turn Pre Amp On.
39. Set the Reference Level to –50dBm and change the channel to 13.
40. Press the Execute Measure main menu key.
41. Repeat Step 25 through Step 36 and record the results in Table A-20.
Frequency Lock Range Verification
The test in this section can be used to verify the frequency lock range of the MT821xE in ISDB-T Signal
Analyzer mode.
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