5
Adjustments
Introduction
This
section
con
tains
the
pro cedures
for
adjusting
the
pulse
detector
b oards
(A3
and
A4)
in
the
HP
85102
IF
detector.
These
b oards
m
ust
b e
adjusted
for
minimum
circularity
error
when
they
are
replaced,
sw
app ed
with
eac
h
other,
or
when
the
HP
85102
IF
detector
is
upgraded
to
include
pulsed-RF
capabilit y
(using
the
HP
8511B
Upgrade
kit).
Equipment
Required
The
follo wing
equipmen
t
is
required
(in
addition
to
the
system
instrumen
ts)
to
p erform
the
pulse
detector
adjustmen
ts.
Item
HP
P
art/Mo del
Numb er
RF
Source
(CW
sinew
a
v
e,
20.1
Mhz,
-10
to
-15
dBm)
HP
3324A,
3325,
8340/41B,
8360
series
1
T
est
Cable
(required
for
the
adjustmen
t
pro cedure,
included
in
the
HP
85111A/B
upgrade
kits)
85111-60001
Adapters
2
T
yp e-N
(m)
to
BNC
(f
)
1250-0780
SMA
(m)
to
BNC
(m)
1250-1787
BNC
(f
)
to
BNC
(f
)
1250-0080
T
yp e-N
(m)
to
BNC
(m)
1250-0077
1
Only
those
that
will
provide
20.1
MHz.
2
Some
com
bination
of
these
adapters
ma
y
b
e
required
to
use
the
test
cable
with
your
source
in
the
adjustment
pro
cedure.
Adjustments
5-1
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Summary of Contents for 85108A
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