S331L MM PN: 10580-00323 Rev. B 2-1
Chapter 2 — S331L Performance Verification
2-1 Introduction
These tests verify the Cable and Antenna Analyzer, Power Meter and InstaCal functionality on the S331L
Site Master.The functional tests include:
• “Frequency Accuracy Verification” on page 2-1
• “Return Loss Accuracy Verification” on page 2-2
• “Power Meter Verification” on page 2-3
• “InstaCal Verification” on page 2-5
2-2 Frequency Accuracy Verification
The following test is used to verify the CW frequency accuracy of the S331L’s RF Source in Cable and Antenna
Analyzer mode.
Equipment Required
• Frequency Counter Frequency: 2 GHz Anritsu Model MF2412B
• RF Coaxial Cable Freq: DC to 18 GHz, N(m) to N(m), 50 Ohm, Anritsu Model 15NN50-0.6B
Procedure
1. Verify that the S331L is in Cable and Antenna Analyzer mode and preset the unit.
2. Press ESC then the Sweep (3) key.
3. Verify that the RF Immunity is set to High.
4. Press the Freq/Dist menu key and set both the Start Freq and Stop Freq to 1 GHz.
5. Connect the RF cable from the S331L RF Out/Reflect In to the Frequency Counter.
6. Record the frequency data in Table A-1, “Cable and Antenna Analyzer Frequency Accuracy” on page A-2.
7. Press the Freq/Dist menu key and set both the Start Freq and Stop Freq to 3 GHz.
8. Record the frequency data in Table A-1.
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