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Q:
A:
Q:
A:
mode.
It is
not
necessary for other
modes.
Even LK
/
R can be used in
an
alternate
configuration,
which ties
the HP 5344A sweep trigger to
the
HP
8350B STOP
SWEEP input.
This is the
optional
configuration
on page
3-37
of
the
Operating
and
Service
Manual.
Refer
to
that for details.
I don
I
t have the SMC sweeper inter face
cables.
Is there a way
I
can count the
sweeper
markers without them?
No
.
They are included in the HP 8350B
option
803
.
You can also
order
them
separately
(HP
part
n
o.
11592-60001).
I
need four BNe connectors
for
the sweep
and
Z
axis signals
.
Can't I
elimi
nate
some of them?
Yes
,
in some modes.
Only
Lock and Roll
requires all four
.
Narrowband sweeps
only require connections from the HP
5344S
to
the
HP
8756A,
and
the
connections
fr
om
the HP 8350B to the HP
5344S can
be
removed
(se
e
figure 7).
HP
8756A
Scala
Network Analvzer
,
HP
5344A
Microwave
Source
Synchronizer
U
III
0
0
0
0
I
qol
0
0 0 0
Stop
I
swee~
In 0·10 V
Z
Axi5 Out
J
Sweep
Swp Out
~~
J:
0
HP 8350B
Sweep Oscillator
Figure
7.
Alternate
rollling of
display
signals fo
r
narrowband
sweeps.
In
cw
measurements, the sweep and
Z
axis
signals can go straight to the HP 8350B,
and
no
connections to the HP
53
44A
front
panel are necessary
(see
figure
8).
Remember, though
r
that the original
configuration
of
figure
3
can
operate
in any mode, and therefore is very
convenient.
HP
8756A
Scalar
Network Analvzer
POS Z
Blank
U
III
0
SWI!eP
In
0·
10
V
0
0 0 0
Stop Sweep
HP
83506
Sweep Oscillator
Stop Sweep
Sweep Out/In
lfc
-
,I:
<
0
' 0
0
pas
Z Blank
HP
5344S Microwave
Soorce Synchronizer
Figure
8.
Alternate
rou
ting
of
display
si~l1Qls
in
Ch'
mode.
11
QUESTIONS/ANSWERS REGARDING MARKERS
Q
:
Doesn't the HP 53445 generate markers?
Can those be displayed on the HP
8756A?
A:
Yes, their
operation
is
described in
the
Operating
and
Service
Manu.ai
of
the
HP
5344S.
But they will not
show up on
the display of the HP 8756A
i f
the 8756
System
Interface
is
operating
.
Therefore, if
you
are using the 8756
System Interface, you will need to
disconnect it to
view
the HP 5344S
markers
.
If
you
disconnect,
then
reconnect the interface bus, you
wil
l
need
to preset the HP 8756A to
enable
the interface again.
Briefly,
the
markers
are
set
by
pressing
[MKR
FREQJ
on the HP 5344A and then
the marker number 1-4.
This displays the
present marker and allows you
to
enter
a
new
value
or
to adjust it with the knob.
You
should then see the marker on the display as
long as
the
8756 System Interface
is
not
operating.
Q:
A:
Q:
A:
Should I use the HP 8350B markers
or
the
HP 5344S markers?
It depends.
Markers are generated
by
the sweeping device.
In narrowband
sweeps, the
HP
5344S is sweeping, so its
markers
should be used.
In LK
/
R,
the
HP 8350B
is
sweeping, so its
markers
should be used.
In
narrowband
sweep,
up
to
four
frequencies can be marked, and magni-
tude measurements can be made at very
accurate
frequencies.
In
wideband
LK/
R sweeps up
to five points can be
marked,
and
the
frequency
can
be
measured
by
the
counter
with high
accuracy.
So if I don't use the Interface Bus
because
I
want
to use the HP 5344S mark-
ers
,
then
I
might as well use AUTO LOCK,
right?
Yes, because you don't use the
8756
System Interface
in
AUTO LOCK.
This
is a good way to do
narrowban
d
sweeps, but can not take advantage
of
the 8756 System Interface.
APPENDIX
I
List
of Documents
HP
534
4S
Operating
and Service Manual
HP part no
.
05344-90009
HP 8756A Operating and Service Manual
HP part no. 08756-90001
HP 8350B
Operating
and Service Manual
HP part no.
08350
-90034
HP
5344S
Micr
owave
Source Synchronizer HP
Product Note
5344S-1;
HP lit. no.
02
-
5952-7649
Operating
Note:
ments
using
Analyzer
and
(HP part
no.
Basic Network
Measure-
8756A
Scalar
Network
8350B
Sweep
Oscillator
08756
-9
0001)
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