2Service
144 Keysight 53210A/53220A/53230A Assembly Level Service Guide
– After a few seconds, display momentarily shows:
15 Select the ‘output enable’ ON feature of the microwave source or reconnect
the cable to the counter, as appropriate.
16 Use the front panel knob and left/right arrow keys to enter the value (300 MHz)
as shown.
17 Press the Input Power softkey and enter the power level of the
300 MHz source as -21 dBm. (Actual input power at the counter must be -21
dBm ± 0.5 dB. If necessary, verify with a power meter.)
18 Press the Perform Cal Step softkey to enter the data into the counter and initiate
the microwave oscillator calibration.
– If the calibration step PASSES, after a few seconds the counter momentarily
displays “Calibration step succeeded.”
– The internal calibration constants are updated.
–The Cal Count on the screen will increment.
19 Repeat steps 16 to 18 using each of the calibration frequencies and power
levels in Table 2-3 (total of 36 steps). For each calibration step, set the source
frequency and power accordingly.
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