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HP 437B
@
5-8. Power
Reference
Frequency
Oscillator
Adjustment
Note
Reference
Description
Equipment
rk
Adjustment of the Power Reference Oscillator frequency may also affect the
a |
output level of the oscillator. Thus, after the frequency is adjusted to 50.0
+0.5 MHz, the output level should be checked as described in Section 4. A
procedure for adjusting the output to the specified level is provided in the
next paragraph.
Service Sheet A4C
Variable inductor A4L5 is adjusted to set the power reference oscillator
output frequency to 50.0 +0.5 MHz.
HP
4378
POWER
METER
FREQUENCY
COUNTER
POWER
REF
1.00 mW
SO MHz
Figure 5-3. Power Reference Oscillator Frequency Adjustment Setup
Frequency Counter ..........
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ADJUSTMENTS
5-7
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