High Accuracy Power Meter Measurement Guide : High Accuracy Power Meter (Option 19) : High Accuracy Power Meter GUI Overview
 
High Accuracy Power Meter GUI Overview
This section illustrates the main graphical displays and SETUP menu presented for the high accuracy power meter. For a basic power measurement example, refer to General Measurement Setup. For a general overview of the instrument and its user interface, refer to “Instrument Overview” chapter of the user guide.
High Accuracy Power Meter Display 
1. Status Panel: This menu provides quick access to common settings used for power meter measurements. Refer to Status Panel.
2. Current Power Measurement: The number displayed here is the current power measurement (in dBm or watts) or the current relative power in dB or percentage. The number here tracks the analog meter pointer.
3. Max Hold Marker: The marker here indicates the max hold value. The max hold value is also displayed in the table below the meter.
4. Limits: The red/blue transitions on the scale indicate the upper and lower limit values. When the pointer is in the blue region, the measurement is passing; when the pointer is in the red regions, the measurement is failing.
5. Sensor Model: The connected sensor model number and status is displayed here.
6. SETUP Menu: Provides access to the main measurement setup parameters.
7. Measurement Table: The data here shows the current and max hold power measurements in both dBm and watts, or relative power in dB and percent (%).
8. Limit Pass/Fail: The measurement table boarder is shown in red for failing measurements or green for passing measurements.
Status Panel
The status panel and features illustrated in this section are unique to the HIPM and to the particular measurement and view that is selected. Select the Chevron icon to collapse the status panel and view the corresponding minimized status panel.
High Accuracy Power Meter Status Panel with Minimized Status Panel Icons
 
CAL FREQUENCY
Sets the measurement frequency. The frequency value is sent to the power sensor to apply the appropriate calibration factor.
EXTERNAL GAIN
Select this submenu key to toggle relative power On or Off. This measurement shows the relative level of the desired base
power level input to your instrument. When ON, the message
EXTERNAL LOSS
Select this submenu key to toggle relative power On or Off. This measurement shows the relative level of the desired base
power level input to your instrument. When ON, the message
REL POWER
Toggles relative power On or Off. This measurement shows the relative level of the desired base power level input to your instrument. For example, if you are measuring a 10 dBm signal, and REL POWER is enabled, then a drop to 7 dBm will show as –3 dB and 50 %.
MAX HOLD
Max Hold retains the highest power level measurement.
AVERAGES
Sets the number of measurements to be averaged.
APERTURE
Aperture is defined as the total time the power sensor observes the input signal in order to complete one power measurement. This tile applies to MA24108/MA24118/MA24126A models only. For MA24106A power sensor models APERTURE MODE is displayed. Refer to SETUP Menu.
AVERAGE SWEEP COUNT
It is the total number of average sweep count. The value is incremented after every sweep until it becomes equal to the set Averages value.