HP 8753D Option 011

2ND L
OW
av
eforms
The
2nd LO
signals app
ear dieren
tin
phase
and
shap
e
at
dieren
t
frequencies.
Refer
to
T
able
7-3
for
con
v
enien
t
test
p
oin
ts.
90
Degree
Phase
Offset
of
2nd
LO
Signals in
High Band.
In high
band, the
2nd LO
is 996
kHz.
As indicated
by
Figure 7-13
,the
2nd LO
actually
consists
of
t
w
o
signals
90
degrees
out
of
phase.
Figure
PHASEO7
here.
Figure
7-13.
90
Degree Phase
Offset
of
High
Band
2nd
L
O
Signals
(

16
MHz
CW)
DRAFT
3/21/106 15:13
Source Troubleshooting 7-19
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