2-6 Input Related Spurious (IRS) Signals Verification Chapter 2 — Spectrum Analyzer Verification
2-10 PN: 10580-00342 Rev. D MS2720T MM
21. Press the Marker main menu key and press the Peak Search submenu key.
22. Record the Marker 1 amplitude reading into the “Measured Spur Level” column of Table A-4.
23. Calculate the input related spurious level by subtracting the Marker 1 reading in Step 17 from the
Marker 1 reading in Step 22. Record the result into the “Calculated IRS” column of Table A-4.
24. Verify that the calculated result is ≤ –60 dBc.
3273 MHz Input Related Spurious Check
25. Set the MG3692x or MG3695C output to 3273 MHz, with an RF output level of –30 dBm.
26. On the MS2720T, press the Freq key and press the Center Freq submenu key.
27. Use the keypad to enter 3273, and press the MHz submenu key.
28. Press the BW key and press the RBW submenu key.
29. Use the keypad to enter 10, and press the kHz submenu key.
30. Press the VBW submenu key and use the keypad to enter 1, then press the kHz submenu key.
31. Wait until one sweep is completed.
32. Press the Shift key and then press the Trace (5) key. Press the Trace A Operations submenu key.
33. Press the # of Averages submenu key, use the keypad to enter 5, and then press the Enter key.
34. Wait until the Trace Count displays 5/5.
35. Press the Marker main menu key and press the Peak Search submenu key.
36. Record the amplitude at 3273 MHz into the “Measured Spur Level” column of Table A-5, “Measured
Input Signal Level at 3273 MHz” on page A-3.
37. Press the Freq key and press the Start Freq submenu key.
38. Use the keypad to enter 2423, and press the MHz submenu key.
39. Press Stop Freq submenu key, enter 3271, and press the MHz submenu key.
40. Press the Shift key and then press the Trace (5) key. Press the Trace A Operations submenu key.
41.
Press the # of Averages submenu key, use the keypad to enter 5, and then press the Enter key.
42. Wait until the Trace Count displays 5/5.
43. Press the Marker main menu key and press the Peak Search submenu key.
44. Record the Marker 1 amplitude reading into the “Measured Spur Level” column of Table A-5.
45. Calculate the input related spurious level by subtracting the Marker 1 reading in Step 36 from the
Marker 1 reading in Step 44. Record the result into the “Calculated IRS” column of Table A-5.
46. Verify that the calculated result is ≤ –60 dBc.
47. Repeat Step 37 through Step 45, setting a start frequency of 3275 MHz and a stop frequency of 4123 MHz.
8000 MHz Input Related Spurious Check
48. Set the MG3692x or MG3695C output to 8000 MHz, with an RF output level of –30 dBm.
49. Press the Freq key and press the Center Freq submenu key.
50. Use the keypad to enter 8000, and press the MHz submenu key.
51. Press the BW key and press the RBW submenu key.
52. Use the keypad to enter 1, and press the kHz submenu key.
53. Press the VBW submenu key and use the keypad to enter 100, then press the Hz submenu key.
54. Wait until one sweep is completed.
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