HP 437B - Page 14

HP 437B
Procedure
5-8
ADJUSTMENTS
Connect
the
equipment
as
shown
in
Figure
5-3.
Set
up
the
counter
to
measure
frequency.
Set the Power Meter LINE switch to ON.
Press the PRESET/LOCAL key, then the ENTER key.
Press the PWR REF (SHIFTed (J) key.
Observe
the
indication
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
steps
6
and
7.
y
Remove the Power Meter bottom cover.
Adjust A4L5 (FREQ) to obtain a 50.00 +0.5 MHz indication on the
frequency counter.