Chapter 2 — Spectrum Analyzer Verification 2-8 Absolute Amplitude Accuracy Verification
MS2720T MM PN: 10580-00342 Rev. D 2-17
2. Set the MS2720T to Spectrum Analyzer mode and then Preset the instrument. Press the Shift key, the
Sweep (3) key, Sweep Mode submenu key, and then the Performance submenu key.
3. Set the MS2720T center frequency to 50 MHz.
4. Set the span to 10 kHz.
5. Press the BW main menu key and set the VBW to 10 Hz.
6. Set the RBW to 1kHz.
7. Press the Amplitude main menu key and set the Reference Level to 10 dBm.
8. Set the Atten Lvl to 30 dB.
9. Adjust the MG3692x or MG3695C power level so that the power meter Sensor B matches the Sensor B
value (Required Sensor B Reading) that is shown on the characterization chart (Table A-9) that was used
in the previous section,“Component Characterization” on page 2-15.
10. Press the Marker main menu key and press the Peak Search submenu key.
11. Record the Marker 1 amplitude reading into the “Measured Reading” column of Table A-10,
“50 MHz Amplitude Accuracy Verification, Specification = ± 1.3 dB” on page A-5.
12. Repeat Step 9 to Step 11 for each Input Power Level in Table A-10, change the “Reference Level” and
“Atten Lvl” settings as required. for the other power levels in Table A-10.
Amplitude Accuracy Across Frequency Verification
This procedure is the second test used to verify the absolute amplitude accuracy of the Spectrum Analyzer in
the MS2720T Spectrum Master. The first procedure test is described above in “50 MHz Amplitude Accuracy
Verification” on page 2-14.
Equipment Required for MS2720T with option 709, 713 or 720
• Anritsu MG3692x Synthesized Signal Generator (see equipment list for required options)
• Frequency Reference Symmetricom Rubisource T&M
• Power Meter, Anritsu Model ML2438A
• (2) Power Sensor, Anritsu Model SC7400
• Power Splitter, Aeroflex/Weinschel Model 1870A
• Fixed Attenuator, Aeroflex/Weinschel Model 4410
• (2) Adapter, Anritsu Model 34NN50A
• Coaxial Cable, BNC(m) to BNC(m), 50 ohm
• RF Coaxial Cable, N(m) to N(f), Anritsu Model 15NNF50-1.5C
Equipment Required for MS2720T with option 732 or 743
• Anritsu MG3695C Synthesized Signal Source (see equipment list for required options)
• Frequency Reference Symmetricom Rubisource T&M
• Anritsu 34VKF50 50 ohm Adapter
• Anritsu 3670K50-2 K RF Coaxial Cable
• BNC male to BNC male Coaxial Cable
• Power Meter, Anritsu Model ML2438A
• (2) Power Sensor, Anritsu Model SC7413
• Power Splitter Anritsu Model K241C
Note
To maintain test setup integrity, do not disconnect Sensor B, the power splitter, or the fixed
attenuator.
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