Common settings in RF power, frequency and power supply DC current measurement

The following section describes the common setting steps to measure RF power, frequency and power supply DC current corresponding to the DUT’s DC control/power by using the E5052B’s frequency/power measurement window.

Selecting Measurement Window

  1. Press Meas/View > Freq & Power to select the frequency/power measurement window.

  2. You can maximize the frequency/power measurement window by pressing Window Max key while the window is selected. You can bring up the original size when you press the Window Max key once again.

    You can select the next trace by pressing the Trace Next key and maximize the target trace by pressing the Trace Max key. The frequency/power window will come back when you press the Trace Max key once again.

Setting Trigger

Setting Averaging Trigger

Setting Attenuator

Procedure to Select Carrier Frequency Band

  1. Press Setup > Frequency Band

  2. For analyzer mode, select a frequency band that contains the frequency of the sweep start position.

  1. Select a frequency band that contains the carrier signal to be measured from the softkey menu list. The ranges of the frequency bands are shown below.

  2. Selectable frequency bands differ depending on whether the E5053A Microwave Downconverter is used and whether the RF input is direct input or downconverter input. For setting of downconverter and external mixer, refer to Setting E5053A Microwave Downconverter
     

Carrier Frequency Band

Standalone E5052B or Downconverter: OFF

Downconverter: ON & RF Input: E5052B Direct

Downconverter: ON & RF Input: Downconverter and External Mixer Not Used

Downconverter: ON & RF Input: Downconverter and External Mixer ON

10 M - 1.5 MHz

Y

Y

N

Y

250M - 3 GHz

N

Y

N

N

250 M - 7 GHz

Y

N

N

Y

3 G - 10 GHz

N

N

Y

N

9 G - 26.5 GHz

N

N

Y

N

Specifying Nominal Frequency

When the downconverter setting is turned on, the RF input setting is Downconverter, and the external mixer setting is Not Used, enter the nominal value of the carrier frequency to detect the carrier signal.

  1. For analyzer mode, set the frequency of the sweep start position as the nominal frequency.

  1. Press Setup > Nominal Frequency.

  2. Enter the value of the nominal frequency in the data entry field displayed in the upper part of the screen.

  3. When using the downconverter RF IN port, the Nominal Frequency setting range is limited to within the carrier frequency band, and the Nominal Frequency should be set to the actual input signal frequency.

    In the tester mode, use the Carrier Search function to set the nominal frequency so as to the input signal frequency. See also Executing Carrier Search Function.

    In the analyzer mode, the Nominal Frequency should be set to the initial frequency at the starting voltage of the built-in DC source (either control voltage or power voltage).

Specifying Maximum Input Level

When the downconverter is turned on, the RF input is set to Downconverter, and the external mixer is set to Not Used, set the maximum input level value of the measurement signal supplied from the input port of the E5053A Microwave Downconverter.

The maximum input level is set to determine the IF gain of the E5053A Microwave Downconverter.

  1. Press Setup > Max Input Level.

  2. Enter the value of the maximum input level in the data entry field displayed in the upper part of the screen.

  3. You can set the maximum input level only when the downconverter is turned on, the RF input is set to Downconverter, and the external mixer is set to Not Used.

Specifying Sweep Range

  1. Press Setup > Sweep Parameter.

  2. Selecting from the softkey menu list, you can define a sweep operation to be performed for either DC control or DC power. Select Control Voltage for DC control and Power Voltage for DC power.

  3. Press Start/Center (Stop/Span) > DC Control(Power)Start.

  4. Enter the sweep start value in the data entry field that appears in the upper part of the screen.

  5. Press  Start/Center (Stop/Span) > DC Control(Power)Stop.

  6. Enter the sweep stop value in the data entry field that appears in the upper part of the screen.

  7. Otherwise, press  Start/Center (Stop/Span) > DC Control(Power)Center to enter the sweep center value in the data entry field that appears in the upper part of the screen and then press DC Control(Power) Span to enter the sweep span value in the same way.

    The same softkey will be displayed by pressing either Start/Center or Stop/Span. You can make the same settings by using either of the two keys.

Specifying Frequency Resolution, Number of Measurement Points and Delay

  1. Press Setup > Freq Resolution.

  2. Select the appropriate frequency resolution from the softkey menu list. The available frequency resolutions are as follows:

Frequency Resolution

10 Hz

1 kHz

64 kHz

  1. Press Setup > Points.

  2. Enter the number of measurement points in the data entry field that appears in the upper part of the screen.

  3. Press Setup > Points Delay.

  4. Enter the waiting time between each measurement in the data entry field that appears in the upper part of the screen.

About DC voltage setting and protection

You can specify the DC power/control that will be applied to the DUT. Refer to Setting DC power/DC control and protection for the setting procedure.

About Auto Frequency Control Function

If this function is turned on, the E5052B will adjust the control voltage automatically so that the output signal frequency from the DUT may keep the specified value. For the setting procedure, refer to the Auto Frequency Control Function.

Setting Average Function