3.
Set
the
signal
generator
carrier
frequency
for
the
pulsed
RF
using
the
NNNNNNNNNNNNNN
Freq
men
u
and
NNNNNNNNNNNNNNNNNNNNNNN
CW
FREQ
.
4.
Set
the
p o
w
er
lev
el
required
at
the
p eak
of
the
main
lob
e
of
the
scan
using
the
NNNNNNNNNNNNNNNNN
Amptd
men
u
and
NNNNNNNNNNNNNNNNN
AMPTD
.
5.
Select
the
NNNNNNNNNNNNNNNNNNNNNNN
ALC
INT
softkey
to
enable
in
ternal
lev
eling.
6.
If
the
RF
output
is
curren
tly
turned
o,
press
the
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
AMPTD
On
Off
softkey
to
turn
it
on.
7.
Cho ose
external
pulse
mo
dulation
(or
a
t
yp e
of
in
ternal
pulse
mo
dulation
if
y
our
instrumen
t
has
Option
1E2),
and
set
the
pulse
c
haracteristics
as
required
for
y
our
particular
application.
If
y
our
instrumen
t
do es
not
ha
v
e
Option
1E2,
select
NNNNNNNNNNNNNNNNNNNNNNN
Modultn
and
then
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
PULSE
On
Off
and
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
PULSE
Nml
Inv
to
c
ho ose
b et
w
een
normal
and
in
v
erted
external
pulse
mo
dulation.
If
y
our
instrumen
t
has
Option
1E2,
y
ou
can
use
one
of
six
pulse
mo
dulation
mo
des,
dep ending
up on
y
our
application.
Y
ou
can
access
the
six
mo
des
b
y
selecting
NNNNNNNNNNNNNNNNNNNNNNN
Modultn
and
then
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
pulse
modultn
.
The
six
pulse
mo
des
are
in
ternal,
external
normal,
external
in
v
erted,
gated,
doublet,
and
in
ternal
triggered
pulse
mo
dulation.
8.
Select
NNNNNNNNNNNNNNNNNNNNNNN
Modultn
and
then
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
LOG
AM
On
Off
to
turn
logarithmic
amplitude
mo
dulation
on.
When
logarithmic
amplitude
mo
dulation
is
turned
on,
the
display
sho
ws:
AM
ON .
9.
If
FM
is
turned
on,
select
the
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
FM
On
Off
softkey
to
turn
it
o.
When
frequency
mo
dulation
is
turned
o,
the
display
sho
ws:
FM
OFF .
10.
Set
the
arbitrary
w
a
v
eform
generator
or
v
ariable
v
oltage
source
to
pro duce
a
w
a
v
eform
with
amplitude
c
haracteristics
that
ac
hiev
e
an
an
tenna
scan
with
the
desired
dynamic
range.
The
an
tenna
scan
w
a
v
eform
should
v
ary
from
a
p ositiv e
v
oltage
to
zero
v
olts.
F
or
ev
ery
+1
v
olt
at
the
EXT
AM
connector,
the
RF
output
is
attenuated
b
y
10
dB.
F
or
example,
the
w
a
v
eform
sho
wn
in
Figure
3-15
applied
to
the
EXT
AM
connector
causes
the
an
tenna
scan
pattern
sho
wn
in
Figure
3-16
to
app ear
at
the
signal
generator
RF
OUTPUT
connector
(provided
the
output
lev
el
has
b een
set
to
020
dBm).
Figure
3-15.
Example
Antenna
Scan
Input
Generating
Signals
3-33
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