Set the HP 4395A controls as follows:
Control Settings Key Strokes
Active Channel: CH 1
4
Ch 1
5
Input Port: B/R
4
Meas
5
,
NNNNNNNNNNN
B/R
Format: LOG MAG
4
Format
5
,
NNNNNNNNNNNNNNNNNNNNNNN
LOG MAG
Active Channel: CH 2
4
Ch 2
5
Input Port: B/R
4
Meas
5
,
NNNNNNNNNNN
B/R
Format: PHASE
4
Format
5
,
NNNNNNNNNNNNNNNNN
PHASE
Start Frequency: 1 MHz
4
Start
5
,
4
1
5
,
4
M/

5
Stop Frequency: 500 MHz
4
Stop
5
,
4
5
5
,
4
0
5
,
4
0
5
,
4
M/

5
Number of Points: 500
4
Sweep
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NUMBER of POINTS
,
4
5
5
,
4
0
5
,
4
0
5
,
4
x1
5
Press
4
Trigger
5
,
NNNNNNNNNNNNNNNNNNNN
SINGLE
to make a sweep.Wait for the completion of the sweep.
Set the HP 4395A controls as follows:
Control Settings Key Strokes
Active Channel: CH 1
4
Ch 1
5
Data
!
Memory
4
Display
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DATA
!
MEMORY
Active Channel: CH 2
4
Ch 2
5
Data
!
Memory
4
Display
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DATA
!
MEMORY
Reverse the cable connections of the HP 4395A A and R inputs as shown in setup 2 of
Figure 2-18.
Press
4
Trigger
5
,
NNNNNNNNNNNNNNNNNNNN
SINGLE
to make a sweep.Wait for the completion of the sweep.
Set the HP 4395A controls as follows:
Control Settings Key Strokes
Active Channel: CH 1
4
Ch 1
5
Data Math: DATA+MEM
4
Display
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DATA MATH [xxx]
,
NNNNNNNNNNNNNNNNNNNNNNNNNN
DATA+MEM
,
NNNNNNNNNNNNNN
GAIN
,
4
.
5
,
4
5
5
,
4
x1
5
Auto Scale
4
Scale Ref
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
AUTO SCALE
Active Channel: CH 2
4
Ch 2
5
Data Math: DATA+MEM
4
Display
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DATA MATH [xxx]
,
NNNNNNNNNNNNNNNNNNNNNNNNNN
DATA+MEM
,
NNNNNNNNNNNNNN
GAIN
,
4
.
5
,
4
5
5
,
4
x1
5
Auto Scale
4
Scale Ref
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
AUTO SCALE
Press
4
Ch 1
5
,
4
Search
5
,
NNNNNNNNNNN
MAX
and
4
Search
5
,
NNNNNNNNNNN
MIN
to move the channel 1 marker to the maximum
and minimum points on the trace. Compare the absolute values at the maximum and
minimum points.
Record the larger value in the performance test record (\Test Result" column for A/R
magnitude ratio).
Press
4
Ch 2
5
,
4
Marker
!
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNN
MKR
!
STOP
,
4
Cal
5
,
NNNNNNNNNNNNNN
MORE
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ELECTRICAL DELAY MENU
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
MKR
!
DELAY
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ELECTRICAL DELAY
. Then press
4
*
5
or
4
+
5
and turn the RPG knob to vary the electrical
delay until the trace is in the most horizontal position.
Press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
PHASE OFFSET
and enter the trace mean value using numeric keys
. The trace mean
value is displayed as a marker statistic (mean) in the upper right-hand corner of the display
.
Performance Tests 2-45
To Next Page
Loading...
