Audio Step Gain and 10 kHz Calibrator Adjustment

This adjustment applies to the following models:

PXA — N9030B with Option 107

The Option 107 Audio board contains five step-gain settings and the on-board 10 kHz calibrator oscillator operates at two power levels depending on the step gain setting.

Two adjustments must be performed. One adjustment determines the exact gain of each step-gain setting, then stores this data to instrument Cal File 1001 (AC Path) and 1017 (DC Path).

The second adjustment measures the 10 kHz calibration oscillator power at each gain setting with either the high or low cal power and measures the audio output on the Audio board, then stores the data in Cal File 1000 (AC Path) or 1016 (DC Path).

The procedure should be performed after replacing the Audio board or when upgrading an instrument with Option 107.

This adjustment saves an output file which lists the corrections that were stored in the instrument. The output file is saved at this location:

<drive>:\Program Files (x86)\Agilent TME\X-Series\Output\<Model_Serial#>

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Required Test Equipment

Test Equipment	Recommended Model Number
Function Generator	33622A
Digital Multimeter	3458A¹
BNC Cable (2 required)	8120-1840
BNC (f) to Dual Banana jack adapter	1251-2277
BNC Tee	1250-0781

The alternate model 34470A is not supported for this adjustment.

Connection Setups

In the following setups, cables are designated as solid lines and direct connections are designated as dashed lines.