Option Verification 5-4 ISDB-T and BER Verification, Options 30 and 79
MT8212E and MT8213E MM PN: 10580-00255 Rev. J 5-11
11. On the MG3700A, adjust the power level so that Power Meter Sensor A reading is –10.0 dBm ± 0.2 dB.
12. Record Power Meter Sensor A reading and Sensor B reading in Table A-22.
13. Subtract Sensor A reading from Sensor B reading and record the result in the ΔAB(–10) column of
Table A-22.
14. Calculate the AT(set) values for Test Levels –10 dBm through –45 dBm and record the values into the
AT(set) column of Table A-24, “ISDB-T Signal Analyzer Level Accuracy Measurement Channel = 13ch
at 473.14285714 MHz” on page A-18.
15. Remove Sensor A from the Power Splitter and then connect the Power Splitter to the MT821xE Spectrum
Analyzer RF In with an NmaletoNmale adapter as shown in Figure 5-3.
16. Record the new Power Meter Sensor B reading to the SB(–10) box in Table A-24.
17. On the MT821xE, set the mode to ISDB-T Signal Analyzer and preset the instrument.
18. Press the Meas Selection main menu key, confirm that Field Strength is selected.
19. Press the Frequency/Level main menu key, ensure that Channel is 13 and that Pre Amp is Off.
20. Change the Reference Level to –10 dBm.
21. Press the Meas Setup main menu key and then the Meas Mode submenu key.
22. Use Up/Down arrow keys, highlight Average, and then press the Enter key.
23. Change the Average Count to 50.
Figure 5-3. ISDB-T Level Accuracy and 1 dB Compression Level Post-test Setup
MT821xE Cell Master
Power Charge
+/-
.
0
3
Sweep
2
Calibrate
1
Preset
6
Limit
5
Trace
4
Measure
9
Mode
8
System
7
File
Shift
Back
Enter
ESC
CellMaster
MT8212E
Function
Ethernet Control Input Modulation Input
Cursor/Edit
RF Output
3
MG3700
Vector Signal
Generator
250kHz-6GHz
3
From: MG3700A 10 MHz Out
To: MT821xE Ext Trigger In
ML2438A Power Meter
MA2482D
Sensor B
1870A
Power Splitter
MG3700A
RF Power Amplifier
MN63A
44-10
1N50C
34NN50A
To Next Page
Loading...
Need help?
General
