HP 437B - 5-8. POWER REFERENCE OSCILLATOR FREQUENCY ADJUSTMENT; REFERENCE; DESCRIPTION; EQUIPMENT

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 .......... ccc cece cece eee e een e een eeees HP 5328A Option 031
ADJUSTMENTS 5-7