MS20xxC UG PN: 10580-00305 Rev. L 3-1
Chapter 3 — Power Monitor, Option 5
3-1 Introduction
When equipped with Option 5, Power Monitor, the MS202xC VNA Master can be used for
making power measurements with broadband RF detectors, such as those listed in the
Technical Data Sheet for your instrument, as listed in Appendix A. The power monitor
displays the measured power results in dBm or Watts.
The function hard keys that are displayed in this mode are:
Freq, Scale, Save/Recall, Measure, Marker
Only the Save/Recall and Measure function hard keys are functional in this mode. The other
three function hard keys provide no valid functions.
3-2 Using the Power Monitor
1. On the VNA Master, press the Shift key, then the Mode (9) key.
2. Use the directional arrow keys or the rotary knob to highlight Power Monitor and then
press the Enter key.
3. Connect the power sensor to the VNA Master RF Detector port.
Zeroing the Power Monitor
1. With no power applied to the Power Detector input, press the Zero soft key. Wait for a
few seconds while the VNA Master accumulates data samples of the quiescent power.
2. When complete, Zero: On is displayed in the message area.
Measuring High Input Power Levels
1. Insert an attenuator between the DUT and the RF Detector to protect the VNA Master
so that the power level is less than or equal to +16 dBm.
2. Press the Offset soft key and enter the attenuation by using the keypad, the arrow keys,
or the rotary knob.
3. Press the Enter key to complete the entry.
Note
This option has been discontinued.
Option 19, High Accuracy Power Meter, offers equivalent and superior
functionality. The Power Meter measurement guide is listed in Appendix A.
Note Option 5 is not available in the MS203xC VNA Master models.
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