2-5 Resolution Bandwidth Accuracy Verification Spectrum Analyzer Verification
2-8 PN: 10580-00255 Rev. J MT8212E and MT8213E MM
2-5 Resolution Bandwidth Accuracy Verification
The following test is used to verify the resolution bandwidth accuracy of the spectrum analyzer in the
MT821xE Cell Master.
Equipment Required
• Anritsu MG3692X Synthesized Signal Source
• 10 MHz Reference Standard
• Anritsu 34RKNF50 50 ohm Adapter
• Anritsu 15NN50-1.5C RF Coaxial Cable
• BNC male to BNC male Coaxial Cable
Procedure
1. Connect the 10 MHz reference source to the Anritsu MG3692X Synthesized Signal Source and the
MT821xE Cell Master.
2. Turn On the MG3692X, set the frequency to 1 GHz CW, and set the level to –30 dBm.
3. Connect the output of the Anritsu MG3692X Synthesized Signal Source to the MT821xE
Spectrum Analyzer RF In.
4. Turn On the MT821xE Cell Master.
5. Press the Shift key and then the Mode (9) key. Rotate the knob to highlight Spectrum Analyzer and
then press the Enter key to switch to Spectrum Analyzer mode.
6. Press the Shift key, the Preset (1) key, and then the Preset submenu key to reset to the default starting
conditions.
7. Press the Shift key, then the Sweep (3) key, then the Sweep Mode key, and then press the Performance
submenu key.
8. Press the Amplitude main menu key and then press the Reference Level submenu key.
9. Use the keypad to enter –10 and press the dBm submenu key.
10. Press the Atten Lvl submenu key and enter 0, then press the dB submenu key.
11. Press the Scale submenu key and enter 10, then press the dB/div submenu key.
12. Press the
Freq main menu key and press the Center Freq submenu key.
13. Use the keypad to enter 1 and press the GHz submenu key.
RBW Test
14. Press the Span submenu key, use the keypad to enter the span that is listed in the test records. Refer to
the Span column of Table A-4, “Spectrum Analyzer Resolution Bandwidth Accuracy” on page A-3.
15. Press the BW submenu key and press the RBW submenu key.
16. Use the keypad to enter 3 and press the MHz submenu key.
17. Set the VBW from the value listed in the test records. Refer to the VBW column of Table A-4.
18. Press the Shift key, press the Measure (4) key, then press the “Power and Bandwidth” soft key, and then
press the OCC BW submenu key.
19. Press the dBc submenu key and enter 3, then press the Enter key.
20. Press the OCC BW On/Off submenu key to turn On occupied bandwidth.
21. Record the OCC BW reading in the test records. Use the Measured Value column of Table A-4.
22. Verify that the OCC BW reading frequency is within 10% of the RBW.
23. Repeat Step 14 through Step 22 for the other settings.
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