HP 8753D Option 011

1.
Connect
the
equipmen
t
as
sho
wn
in
Figure
3-23
.
2.
Mak
e
sure the
instruments
are set
to their
default HP-IB
addresses:
HP 8753D
Option 011
= 16,
Spectrum
Analyzer
=
18.
Figure
FRA
CSPUR
here.
Figure
3-23.
Fractional-N
Spur
Av
oidance and
FM Sideband
Adjustment
Setup
3.
Set
the
sp
ectrum
analyzer
measuremen
t
parameters
as
follows:
Reference
Lev
el
0
dBm
Resolution
Bandwidth 100
Hz
Cen
ter
F
requency
676.145105
MHz
Span
2.5
kHz
4.
On the
HP
8753D
Option
011,
press
4
PRESET
5
4
MENU
5
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
CW
FREQ 4
676.045105
5
4
M/

5
.
5.
Remo
v
e
the
upp
er-rear
corner
bump
ers
and
the
top
co
v
er,
using
a torx
screwdriver.
6.
Adjust
the
100
kHz
(R77)
for
a
n
ull
(minim
um
amplitude)
on
the
sp
ectrum analyzer.
The
minimum
signal ma
y,
or ma
y not,
drop
do
wn
in
to
the
noise
o
or.
DRAFT
3/21/106 15:11
Adjustments and Correction Constants 3-51
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