5-16 DVB-T/H Signal Analyzer Verification, Options 64 and 57 Option Verification
5-84 PN: 10580-00255 Rev. J MT8212E and MT8213E MM
36. Record the result in the “Pre Amp Off Dev (dB)” column in Table A-75 on page A-47, and verify that it
is within specification.
37. Set the MN63A attenuation to the next AT(set) value in Table A-75.
38. Press the Amplitude main menu key and set the Reference Level of the Cell Master to –15 dBm.
39. After Average (50/50) appears, record the –15 dBm Channel Power from the Cell Master into the
“Pre Amp Off M(Level) (dBm)” column in Table A-75
40. Calculate the Deviation by using the following formula:
Deviation = M(Level) – SB(–10) – ΔAB (–10) – AT(–10) + AT(set)
41. Record the result in the “Pre Amp Off Dev (dB)” column in Table A-75, and verify that it is within
specification.
42. Set the MN63A attenuation to the next AT(set) value in Table A-75.
43. Set the Reference Level of the Cell Master to –20 dBm.
44. After Average (50/50) appears, record the –20 dBm Channel Power from the Cell Master into the
“Pre Amp Off M(Level) (dBm)” column in Table A-75
45. Calculate the Deviation by using the following formula:
Deviation = M(Level) – SB(–10) – ΔAB (–10) – AT(–10) + AT(set)
46. Record the result in the “Pre Amp Off Dev (dB)” column in Table A-75, and verify that it is within
specification.
47. Press the Amplitude main menu key and set Pre Amp to On. Change the Reference Level if required.
48. After Average (50/50) appears, record the –20 dBm Channel Power from the Cell Master into the
“Pre Amp On M(Level) (dBm)” column in Table A-75.
49. Calculate the Deviation by using the following formula:
Deviation = M(Level) – SB(–10) – ΔAB (–10) – AT(–10) + AT(set)
50. Record the result in the “Pre Amp On Dev (dB)” column in Table A-75, and verify that it is within
specification.
51. Repeat Step 42 through Step 50 for Test levels –25 dBm
to –45 dBm. Change Reference Level and switch
Pre Amp per the “Ref Level Pre Amp Off/On” column in Table A-75.
52. Turn Off the power amplifier, disconnect the power splitter from the Cell Master, and reconnect Sensor A
to the power splitter as shown in Figure 5-15 on page 5-81.
53. Set the MN63A Attenuation to 10 dB.
54. Set the MG3700A Level to –60 dBm.
55. Turn On the power amplifier and allow it to warm up for at least 5 minutes.
56. Adjust the MN63A Attenuator so that the Sensor A reading is –50 dBm ± 1 dBm. Record the attenuation
reading in Table A-75.
57. On the MG3700A, adjust the power level so that the Power Meter Sensor A reading
is –50.0 dBm ± 0.2 dBm.
58. Record the following values to the appropriate columns in Table A-74, “Option 64, DVB-T/H Signal
Analyzer, Level Accuracy Verification, –50” on page A-46:
Power Meter Sensor A reading to the “Sensor A Reading” column
Power Meter Sensor B reading to the “Sensor B Reading” column
59. Subtract the value of the Sensor A reading from the value of the Sensor B reading and record the result
in the “DAB(–50)” column in Table A-74.
DAB(–50) = Sensor B Reading – Sensor A Reading
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