Performance Verification 2 3-13 DVB-T/H Signal Analyzer (Options 64 and 57) Verification
MS2721B MM PN: 10580-00177 Rev. D 3-77
Frequency Lock Range Verification
The test in this section can be used to verify the frequency lock range of the MS2721B in DVB-T/H Signal
Analyzer mode.
Required Equipment:
• Anritsu MG3700A Vector Signal Generator
• Frequency Reference Symmetricom Rubisource T&M
• RF Coaxial Cable, Anritsu Model 15NN50-1.5C
Procedure:
1. Connect the 10 MHz Frequency Reference source to the Anritsu MG3700A and MS2721B as shown above
in Figure 3-20, “DVB-T/H Option 64 and Option 57 – Signal Analyzer Test Setup” on page 3-74.
2. On the MG3700A, press the yellow Preset key located on the upper-left side of the instrument.
3. Press the Down Arrow key to select Yes.
4. Press the Set key (Note that two Set keys are available, and they both do the same thing).
5. Press the F1 soft key to select Load File to Memory.
6. Press the F1 soft key again to select Select Package.
7. Use the Down Arrow key to step through the selection list until the Digital_Broadcast option is
highlighted.
8. Press the Set key.
9. Press the F6 soft key labeled Return.
10. Press the Set key.
11. Use the Down Arrow key to step through the selection list until the Digital_Broadcast option is
highlighted.
12. Press the Set key.
13. Use the Down Arrow key to step through the selection list until the DVB-T_H_00 option is highlighted.
14. Press the Set key.
15. Set the Frequency to 474.09 MHz.
16. Set the Level to –20 dBm.
17. Ensure that the Mod On/Off key and the Output key each have an illuminated LED.
18. Set the mode of the MS2721B to DVB-T/H Signal Analyzer. Press the Shift key, the Preset (1) key, and
then press the Preset soft key to reset the MS2721B.
19. Connect the MG3700A output signal to the Spectrum Analyzer RF In connector on the MS2721B.
20. On MS2721B, press the Frequency/Level function hard key and ensure that Channel is set to 21.
21. Set the Reference Level to –20 dBm.
22. Press the Meas Selection function hard key and press Modulation Analysis.
23. Press the Meas Setup function hard key and then the Meas Mode soft key.
24. Use the rotary knob to highlight Average and press the Enter key.
25. Press the Average Count soft key, then enter 10, and press the Enter key.
26. Wait until Average (10/10) appears at the top of the display.
27. Record the Frequency Error in the “474.09 MHz” row of Table A-129, “DVB-T/H Signal Analyzer
Frequency Lock Range, Option 64” on page A-40.
28. On the MG3700A, set the frequency to 473.91 MHz.
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