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Adjustments
Power Reference Oscillator Frequency Adjustment
Power Reference Oscillator Frequency Adjustment
Note
Description
Variable inductor A2L9 is adjusted to set the power reference oscillator
output frequency to 50.0 ± 0.5 MHz. This frequency is a supplemental
characteristic.
Equipment
Procedure
3-4
Adjustment of the power reference oscillator frequency may also
affect the output level of the oscillator. Therefore, after the
frequency is adjusted to 50.0 ± 0.5 MHz, the output level should be
checked as described in "Power Reference Oscillator Level
Adjustment", on page 3-6.
The power reference oscillator frequency is a nominal
specification.
Power Meter
Figure 3-1: Adjustment Setup
Frequency Counter................................ HP 5314A
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.
Frequency Counter
POWER
REF
HP EPM-441A/442A Service Guide
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