2-8 Displayed Average Noise Level (DANL) Spectrum Analyzer Verification
2-20 PN: 10580-00255 Rev. J MT8212E and MT8213E MM
22. For each measured 100 kHz RBW value in the test record, convert it to 1HzRBW value by
subtracting 50 dB. For example:
–100 dBm – 50 dB = –150 dBm
For example, if the marker shows a value of –100 dBm at 100 kHz RBW, then the calculated value at
1 Hz RBW is –150 dBm.
23. Enter the calculated values in the test records. Use the Calculated for 1 Hz RBW column of Table A-11.
24. Verify that the calculated value is less than or equal to the value in the Specification column of
Table A-11.
25. Press the Amplitude main menu, then press the Reference Level submenu key.
26. Use the keypad to enter –50 and press the dBm submenu key.
27. Press the Pre Amp On/Off submenu key to turn the preamplifier On.
28. Repeat Step 11 through Step 24.
29. Record the Marker reading and calculated value in the test record using Table A-12, “Spectrum Analyzer
DANL with Pre Amp On” on page A-12.
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