Note

The Alternate Measurement Display Screen should only be used for single frequency measurements or where all emitter frequencies are close and the exposure standard has the same limits. Refer to Using Probe Correction Factors on page 24.

Alternate Measurement Display Screen

The Alternate Measurement Display Screen is very similar to the Main Measurement Display Screen with one difference. This display mode is used to show frequency-specific, real time information on the third line of the display instead of a maximum value. It should be used only for single frequency or narrow band measurement applications. The information that is shown depends on whether a flat frequency response probe or a shaped frequency response probe has been selected.

•Flat Frequency Response Probes. This display mode instantly converts the measured value to a percent of the referenced exposure standard at a particular frequency.

•Shaped Frequency Response Probes. This display mode instantly converts the measured value, shown in Percent of Standard, to an equivalent power density value at a particular frequency.

The use of the Alternate Measurement Display Screen also introduces an automatic correction for probe frequency deviation for probes in memory.

The option to change display screens is only available when other options such as spatial averaging, data logging or time averaging have not been turned on.

To use the Alternate Measurement Display Screen...

1.Make sure that the 8718B is set to the correct exposure standard. See Chapter 11 Using the Standards Feature.

2.Press F4 (FREQ) from the Main Measurements Display Screen. A new screen will appear to allow you to enter a frequency.

3.Enter the frequency that you are measuring. You must fill all four positions. If you make a mistake just enter more digits until correct. For greater accuracy, use the units that allow the larger number. For example, enter 10.00 kHz, not 00.01 MHz.

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Operating the Meter