Options Performance Verification 4-2 VNA Mode Bias Tee (Option 10) Operational Check
Model MS20xxB MM PN: 10580-00303 Rev. D 4-3
16. Press the Off submenu button to turn the Bias Tee Off. Press the Back submenu button to return to
previous menu.
17. Press the Int Voltage P2 submenu button. Use the numeric keypad to enter 18 and then press the V
submenu button to change the voltage to 18.0 V.
18. Repeat Step 14 through Step 16.
19. Remove the 105 ohm Load from VNA Port 2 and connect the 78 ohm Load to VNA Port 2.
20. Press the Int Voltage P2 submenu button. Use the numeric keypad to enter 32 and then press the V
submenu button to change the voltage to 32.0 V.
21. Repeat Step 14 through Step 16.
22. Remove the 78 ohm Load from VNA Port 2.
Fault Test
23. Connect the Short of the Calibration Tee to VNA Port 2.
24. Change Int Voltage P2 to 12.0 V.
25. Press the Bias Tee submenu button and then press the On submenu button to turn the Bias Tee On.
26. Verify that the instrument displays the Bias Tee voltage and current reading in the upper left corner of
the screen is flashing 0.0V and0mA.
27. Press the Off submenu button to turn off the Bias Tee.
Expected Current (mA) 85 to 145 142 to 202 370 to 450
Table 4-1. VNA Bias Tee Verification
Voltage Setting (V) 12.0 18.0 32.0
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