Adjustments 3
Keysight E4416A/E4417A Power Meters Service Guide 75
Procedure
1 Ensure that the power meter has been powered on for at least 30 minutes
before making any measurements.
2 Connect the equipment as shown in Figure 3-1. Set up the counter to measure
frequency.
3 Turn the power reference on by pressing:
–
, on the Keysight E4416A.
–
, , , on the Keysight E4417A.
4 Observe the reading on the frequency counter.
If it is 50.0 ±0.5 MHz, no adjustment of the power reference oscillator
frequency is necessary. If it is not within these limits, adjust the power
reference oscillator frequency as described in step 5 and step 6.
5 Remove the power meter cover.
6 Adjust A2L9 to obtain a 50.0 ±0.5 MHz indication on the frequency counter.
Refer to Figure 3-2 for the position of A2L9.
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