Agilent Technologies 83620A - Page 141

5.
On
the
syn
thesizer,
press:
4
MOD
5
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N
N
Pulse
On/Off
Extrnl
(asterisk
on)
or,
for syn
thesizers with
Option 002,
press:
4
MOD
5
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
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N
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NN
N
Pulse Menu
N
N
N
N
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NN
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N
Pulse On/Off
Ext (asterisk
on)
6.
On
the
oscilloscop
e:
a.
Adjust the
timebase dela
yto
p
osition
the
rising
edge
of
the
pulsed
RF
near
the
cen
ter
of
the
displa
y
.
b.
Adjust
the
c
hannel
3
v
olts/division
and oset
to obtain
a5
division
signal
lev
el
b
et
w
een the
RF
p
o
w
er
o
and
the
RF
p
o
w
er
on.
(See
Figure
2-16
.)
c.
Adjust
the
channel
3oset
to mo
ve
the
RF
p
o
w
er
o
line
one-half
division
b
elo
w
the
nearest
horizon
tal
graticule
(making
the horizon
tal
graticule
cross
the
w
a
v
eform
at
the
10%
p
oin
t.)
d.
Adjust
the
oscilloscop e
timebase to
widen
the
pulse
en
v
elop
e
so
that
the
measuremen
t
can
b
e
made
with
greater
accuracy
.
(See Figure
2-17.)
e.
Use
the
oscilloscop
e's
delta
t
function
to
measure
the
time
dierence
b
etw
een
the
10%
and
90%
risetime
p
oin
ts
on
the
en
v
elop
e.
(The
10%
p
oin
t
of
the
risetime
is
where
the pulse
en
v
elop
e
crosses
the
graticule.
The
90%
p
oin
t
is
4
divisions
up.)
Record
this
v
alue
in
T
able 2-18
.
HP 8360 Performance Tests
Pulse Performance
2-71
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