Keysight Technologies 53210A, Руководство по обслуживанию

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2 Service
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.