MS20xxC MM PN: 10580-00307 Rev. D 3-1
Chapter 3 — Spectrum Analyzer
Performance Verification
3-1 Introduction
This chapter contains tests that can be used to verify the performance or operation of the spectrum analyzer in
VNA Master models MS2036C, MS2037C and MS2038C. The tests include:
• “Residual Spurious Response”
• “Displayed Average Noise level (DANL)”
• “Frequency Accuracy”
• “Single Side Band (SSB) Phase Noise”
• “Spurious Response (Second Harmonic Distortion)”
• “Input Related Spurious (IRS) Signals”
• “Resolution Bandwidth Accuracy”
• “Amplitude Accuracy”
• “Third Order Intercept (TOI)”
3-2 Residual Spurious Response
The following test is used to verify the residual spurious response of the spectrum analyzer in VNA Master
models MS2036C, MS2037C and MS2038C and is performed by using the positive peak detection mode.
Equipment Required
• 50 ohm Termination, Anritsu Model 28N50-2
• 50 ohm Termination, Anritsu Model 28K50 (For MS2038C with Option 11 Only)
Procedure
1. Connect the 50 ohm Termination to the Spectrum Analyzer RF In connector of the MS203xC.
2. Press the On/Off key to turn on the MS203xC.
3. Press the Shift key and then the Mode (9) key. Use the rotary knob to highlight Spectrum Analyzer, and
then press the Enter key to switch to Spectrum Analyzer mode.
4. Press the Shift key, the Preset (1) key, and then the Preset soft key to reset the instrument to the default
starting conditions
5. Press the Shift key, the Sweep (3) key. Press the Sweep Mode soft key, and then press the Performance
soft key to set the instrument to Performance Sweep mode.
Residual Spurious Response with Preamp Off
6. Press the Amplitude hard key and then the Reference Level soft key.
7. Enter –40 and press the dBm soft key to set Reference Level to –40 dBm.
8. Press the Atten Lvl soft key.
Note Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
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