HP 3336A - Page 118

Model 3336A/B/C Performance Tests
t.
Change
the
reference
synthesizer
output
frequency
to
20.001
MHz.
u.
Increment
the
phase
of
the
3336’s
output
signal
until
the
dc
output
of
the
mixer
is
0
Vdc,
+
.01
V.
v.
Disconnect
the
dc
voltmeter
to
eliminate
a
possible
noise
source.
w.
Tune
the
spectrum
analyzer
to
the
following
frequencies
and
measure
their
amplitude
relative
to
the reference
level
set
in
Step s.
1kHz 2kHz 3kHz 4kHz
x.
Enter
a
Pass
of
Fail
indication
on
the
Performance
Test
Record..This
test
checked
a
number
of
the
most
important
(largest)
spurious
signals.
There
may
be
other
spurious
signals
present,
however,
they
normally
are
well
within
the
specification
and
need
not
be
checked.
A
-hp- 3336
SPECTRUM ANALYZER(HIGH FREQUENCY)
[coco] ie CEE
y
Ja4f 3f oo ro) Hie” ot
aap oa) ssa
Jitstid4
4-4 See 75n
MINIMUM LOSS
IMPEDANCE MATCHING PAD
B
Ease SPECTRUM ANALYZER (LOW FREQUENCY)
eT |
Saat ea ro)
saa] af Ja434
2 Pa es Pa a fa |
a JJ af oo
752
OUTPUT
752. FEEDTHRU
TERMINATION
EXT. REE IN
-Ap-
3336
SPECTRUM
ANALYZER
(LOW
FREQ.)
[ae ocel. 33° [ecocn)
sasf sp osu] -4J toa 1
TS] psa rer
MIN 1.033
IMPEDENCE MATCHING PAD | [Peebrnu
IMHz
tow PASS
FILTER
DC VOLTMETER
@ Figure 4-10. Spurious Signal Equipment Set Up.
4-33