Service 2
Keysight 53210A/53220A/53230A Assembly Level Service Guide 139
Summary of Option 106 microwave calibration procedure:
– Input signal: This should be a clean sine wave at each frequency and power
level, driving 50 Ω termination.
– Timebase: Any external timebase you provide is ignored during calibration.
– Verify signal input connections and source output is ON.
– Procedure: From the front-panel, the following key strokes initiate the
microwave frequency channel calibration:
[Utility] / (Cal AutoCal) / (Perform Cal) / (Cal Step uWave) / enter (Input Freq)
<frequency>
[Util ity] / (Cal AutoCal) / (Perform Cal) / (Cal Step uWave) / enter (Input Power) <power>
/ (Perform Cal Step)
Summary of Option 106 remote microwave calibration:
– Set timeout for PC to be greater than 20 seconds.
–Unlock security: CALibration:SECurity:STATe OFF, <code>
– Read security state: CALibration:SECurity:STATe?
– 0 means OFF or unlocked.
– Send zero-calibration command (one-time only):
–Use: “CALibration:LEVel3? 0,0” for 53220A/53230A.
–Use: “CALibration:LEVel2? 0,0” for 53210A.
– Retrieve query result:
– 0 indicates the calibration PASSED.
– Any value other than 0 indicates calibration FAILED.
– Connect calibration source to channel 2 (53210A) or channel 3
(at 500 MHz, -27 dBm for Option 106).
– Send command to calibrate: “CALibration:LEVel3? 500E6, -27”.
–Use “CALibration:LEVel2? 500E6, -27” for 53210A.
– Retrieve query result:
– 0 indicates the calibration PASSED.
– Any value other than 0 indicates calibration FAILED.
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