HP 8753D Option 011

A7
Pulse Generator
Check
The pulse
generator aects
phase lo
ck
in high
band only
.It
can
b
e
c
hec
k
ed
with
either
a
sp
ectrum analyzer
or an
oscilloscop
e.
A7 Pulse
Generator Check
with Spectrum
Analyzer
1.
Remo
v
e
the
A7-to-A6
SMB
cable
(W7)
from
the
A7
pulse
generator
assem
bly
.
Set
the
analyzer
to
generate
a
16
MHz
CW
signal.
Connect
the sp
ectrum analyzer
to the
A7
output connector
and observ
e the
signal. The
A7
com
b
should
resem
ble
the
sp
ectral
displa
y
in
Figure
7-23
.
Figure
PGO7
here.
Figure
7-23.
Pulse
Generator
Output
2. If
the analyzer
malfunction
relates
to
a
particular
frequency
or
range,
lo
ok
more
closely
at
the
com
bto
oth there.
Adjust the
spectrum
analyzer
span
and
bandwidth
as
required.
Ev
en
at
3
GHz,
the
com
b
should
lo
ok
as
clean as
Figure 7-24
.F
or
Option
006
instrumen
ts
at 6
GHz
the
com
b
to
oth
lev
el
should
b
e
appro
ximately
0
46
dBm.
7-28 Source Troubleshooting DRAFT
3/21/106 15:13
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