5-16 DVB-T/H Signal Analyzer Verification, Options 64 and 57 Option Verification
5-78 PN: 10580-00255 Rev. J MT8212E and MT8213E MM
14. Press the Set key.
15. Set the Level to –20 dBm.
16. Set the Frequency to 470 MHz.
17. Press the Baseband key and then the More key.
18. Press the F5 soft key labeled Pattern Combination [Defined].
19. Press the Set key.
20. Use the Down Arrow key to step through the selection list until the Digital_Broadcast option is
highlighted.
21. Press the Set key.
22. Use the Down Arrow key to step through the selection list until the DVB-T_H_00 option is highlighted.
23. Press the Set key.
24. Rotate the knob to highlight Freq Offset and use the numeric keypad to enter 4MHz.
25. Ensure that the Mod On/Off key and the Output key each have an illuminated LED.
26. Connect the MG3700A Output to the Cell Master RF In connector.
27. Set the mode of the Cell Master to DVB-T/H Signal Analyzer and preset the instrument.
28. Press the Measurements main menu key then the Modulation Analysis soft key and choose
Composite View.
29. Press the Amplitude main menu key, and set the Reference Level to –20 dBm.
30. Press the Frequency main menu key then the Signal Standard soft key and choose Digital Terrestrial TV
UHF (Europe). Ensure that Channel is set to
21.
31. Press the Shift key and the Sweep (3) key, and then press the Meas Mode soft key.
32. Use the Up/Down Arrow keys to highlight Moving Average and press the Enter key.
33. Press the Average Count soft key, then enter 10, and press the Enter key.
34. Wait until Average (10/10) appears at the top of the display.
35. Record the Frequency Offset reading on the Cell Master into the “Frequency Error” column in
Table A-68, “Option 64, DVB-T/H Signal Analyzer, Frequency Accuracy for –20 dBm Reference Level”
on page A-45.
36. Record the MER Total reading on the Cell Master in the “Total MER” column in Table A-70, “Option 64,
DVB-T/H Signal Analyzer, Residual MER Pre Amp Off” on page A-45
37. Set the MG3700A Level to –50 dBm.
38. On the Cell Master turn On the Pre Amp by pressing the Amplitude main menu key and pressing the
Pre Amp soft key. Set the Reference Level to –50 dBm.
39. Wait until Average (10/10) appears at the top of the display.
40. Record the Frequency Offset reading on the Cell Master into the “Frequency Error” column in
Table A-69, “Option 64, DVB-T/H Signal Analyzer, Frequency Accuracy for –50 dBm Reference Level”
on page A-45.
41. Record the MER Total reading on the Cell Master in the “Total MER” column in Table A-71, “Option 64,
DVB-T/H Signal Analyzer, Residual MER Pre Amp On” on page A-45.
42. Set Cell Master Pre Amp to Off.
43. Set the MG3700A Frequency to 662 MHz and Level to –20 dBm.
44. Change the Cell Master to Channel 45, and set Reference Level to –20 dBm.
45.
Repeat Step 34 through Step 41.
46. Set Cell Master Pre Amp to Off.
To Next Page
Loading...
