Analog Measurements - Screens and Control Fields

Control Fields for Analog Measurements

TX Pwr Zero

The transmitter power zero function establishes a 0.0000 W reference for measuring RF power at the RF IN/OUT port.

Operating Considerations

When power is applied to the RF IN/OUT connector, the temperature of the internal circuitry increases. This can cause changes in the TX power measurement when low power levels are measured immediately following high power measurements.

When alternately making high and low power measurements, always zero the power meter immediately before making the low power measurements; this provides the best measurement accuracy.

If the Auto Zero field is set to Auto, the TX power measurement is periodically zeroed (automatically). Manual calibration is only needed if Auto Zero is set to Manual, or if you are measuring highly variable signal levels (as mentioned above).

Screens on which this field is displayed

RF ANALYZER

Vert/div

Vertical sensitivity sets the vertical amplitude per division.

Operating Considerations

The value for this field is selected from a list of choices.

Depending on the AF analyzer’s AF Anl In setting, the units for this field may be in Volts, kHz, or Percent (AM). For example; if the AF Anl In field is set to FM Demod, the amplitude is displayed in kHz/div.

Screens on which this field is displayed

SCOPE: main controls menu

Chapter 6

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Agilent Technologies 8935 series e6380a manual TX Pwr Zero, Vert/div