3-9 Amplitude Accuracy Spectrum Analyzer Performance Verification
3-22 PN: 10580-00307 Rev. D MS20xxC MM
3-9 Amplitude Accuracy
The following tests are used to verify the amplitude accuracy of the spectrum analyzer in VNA Master models
MS2036C, MS2037C and MS2038C. The tests are:
• “50 MHz Amplitude Accuracy Verification Procedure”
• “Amplitude Accuracy Across Frequency Verification Procedure”
Equipment Required
• 10 MHz Reference Standard, Symmetricom Model Rubisource T&M
• Synthesized Signal Generator, Anritsu Model MG3692X
• BNC(m) to BNC(m) Coaxial Cable (quantity 2), Anritsu part number 2000-1627-R
• BNC Tee Adapter, BNC(m) to BNC(f)/BNC(f), Anritsu part number 3-2600-2
• Dual Channel Power Meter, Anritsu Model ML2438A
For all units except MS2038C with Option 11
• High Accuracy Power Sensors (quantity 2), Anritsu Model SC7400
• Power Splitter, Aeroflex/Weinschel Model 1870A
• 10 dB Fixed Attenuator, Aeroflex/Weinschel Model 44-10
• N(m) to N(m) Adapter, Anritsu Model 34NN50A
• K(m) to N(f) Adapter, Anritsu Model 34RKNF50
• N(m) to N(m) RF Coaxial Cable, Anritsu Model 15NN50-1.0B
For MS2038C with Option 11 Only
• High Accuracy Power Sensors (quantity 2), Anritsu Model SC7413
• Power Splitter, Anritsu Model K241C
• 10 dB Fixed Attenuator, Anritsu Model 41KC-10
• K(m) to K(m) Adapter, Anritsu 33KK50B
• K(m) to K(f) RF Coaxial Cable, Anritsu Model 15KKF50-1.0A
50 MHz Amplitude Accuracy Verification Procedure
1. Refer to Figure 3-3 and set up the test equipment as follows:
a. Connect both SC7400 (or SC7413) Power Sensors to the power meter, set the Power Meter to
display both Channel A and Channel B, and then zero the power sensors.
b. Connect the BNC Tee Adapter to the output of the 10 MHz Reference Standard.
c. Connect the 10 MHz Reference Standard output to the Ext Ref Input connector of the MS203xC
VNA Master.
d. Connect the 10 MHz Reference Standard output to the 10 MHz Ref In connector of the MG3692X
Synthesized Signal Generator.
e. Connect the RF Coaxial Cable to the output of the MG3692X.
f. Connect the Power Splitter to the open end of the RF Coaxial Cable.
g. Connect Sensor B to one of the Power Splitter outputs.
h. Install the 10 dB Fixed Attenuator to the other Power Splitter output.
i. Connect Sensor A to the open end of the 10 dB Fixed Attenuator.
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