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Chapter 2 Service

The Agilent 53210A/53220A/53230A Calibration Procedures

Assembly-Level Service Guide 113

Summary of Oscillator Calibration Procedure:

• Input signal: This should be a clean square wave with a fast rise

time at 10 MHz, 1 Vp-p, 0V DC offset

• Timebase: Any external timebase you provide is ignored during

calibration.

• Verify signal input connections and that source output is ON.

• Procedure: From the front-panel, the following key strokes initiate

the internal reference oscillator calibration:

[Utility] / (Cal AutoCal) / (Perform Cal) / (Cal Step Oscil) / enter <Input

Freq> / (Perform Cal Step)

Remote Oscillator Calibration Summary:

• Set timeout for PC to be greater than 20 seconds.

• Connect calibration source to channel 1 (10.000 000 000 MHz).

• Unlock security: CALibration:SECurity:STATe OFF, <code>

• Read security state: CALibration:SECurity:STATe?

– 0 means OFF or unlocked.

• Send command to calibrate: “CALibration:VALue 10E6”.

• Send query command: “CAL?”.

• Retrieve query result:

– 0 indicates the calibration PASSED.

– Any value other than 0 indicates calibration FAILED.

• If non-zero value, read error queue: SYSTem:ERRor?

• Read errors until no more errors.

•Consult the Error Messages section starting on page 163 for what to

do after receiving a specific calibration error message.

NOTE For remote calibration, an Internal Reference Oscillator

calibration is automatically selected (over internal DAC

calibration) since the cal value of 10E6 is larger than the

acceptable DAC voltage range.

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Agilent Technologies 53230A Especificações Página 113