A3/A4
Pulse
Detector
Adjustment
The
A3
and
A4
pulse
detector
b oards
in
the
HP
85102
IF
detector
m
ust
b e
adjusted
after
installation
for
minimum
circularit
y
error.
F
ollo w
the
pro cedure
b elow
to
make
this
adjustmen
t.
Congure
y
our
system
as
sho
wn
in
Figure
5-1 .
This
is
the
standard
pulsed-RF
system
conguration
except
that
a
connection
is
made
from
the
RF
source
to
the
A2
assem
bly
,
and
the
RF
source
is
disconnected
from
the
system
bus.
F
or
b enc
h
top
congurations,
notice
that
the
HP
85102
IF
detector
is
placed
on
top
of
the
HP
85101
display
for
the
adjustmen
t
pro cedure.
Use
the
test
cable
and
the
SMA
to
SMB
adapter
to
make
the
connection
from
the
source's
output
to
the
A2
b oard
in
the
HP
85102.
Figure
5-1.
Adjustment
Procedure
Setup
Note
All
of
the
pulsed-RF
system
instrumen
ts
can
remain
connected
in
the
system
during
the
adjustmen
t
pro cedure
as
long
as
they
are
p o
w
ered
OFF
during
the
adjustmen
t
pro cedure.
Only
the
instrumen
ts
used
in
Figure
5-1
should
b e
p o
w
ered
ON
for
the
adjustmen
t
pro cedure.
5-2
Adjustments
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