Unratioed
P
o
w
er
Lev
el
Check
This
pro cedure
allo
ws
y
ou
to
c
hec
k
the
p o
w
er
lev
els
and
frequency
resp onse
of
the
four
pulsed-RF
signal
paths.
this
test
can
give
a
go
o d
indication
of
the
health
of
the
sources,
microw
a
v
e
paths,
mixers,
IF
paths,
ampliers,
detectors,
track
and
hold,
and
A/D
con
v
erter.
The
a1
reference
signal
path
and
the
b1
test
signal
path
are
sho
wn
in
Figure
6-2.
The
a2
reference
signal
and
the
b2
test
signal
paths
are
similar
to
the
a1
and
b1
signal
paths
resp ectiv
ely
.
Figure
6-2.
Simplified
a1
and
b1
Pulsed-RF
Signal
P
aths
Procedure
Starting
conditions:
T
est
set
test
p orts
are
\op en";
nothing
is
connected
to
them.
The
system
is
p o
w
ered
ON.
Note
If
y
ou
ha
v
e
an
y
sp ecial
instrumen
t
states
loaded
in
the
net
w
ork
analyzer,
sa
v
e
them
no
w
in
a
mac
hine
dump
disk
le
b efore
con
tinuing
with
this
pro cedure.
A
single
mac
hine
dump
le
holds
all
8
instrumen
t
state
les.
Load
the
le
MD
PULS
(or
MD
PULS
A
if
y
ou
ha
v
e
an
HP
8349B
amplier
in
the
LO
path):
1.
Insert
the
HP
85108
Pulsed-RF
conguration
disk
in
to
the
disk
driv
e.
2.
Press
4
DISC
5
or
4
T
APE/DISC
5
NNNNNNNNNNNNNN
LOAD
NNNNNNNNNNNNNN
MORE
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
MACHINE
DUMP
.
3.
Use
the
RPG
knob
to
select
the
desired
le
name.
System
Service
and
Troubleshooting
6-9
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