3-16
Service Guide E8364-90001
Tests and Adjustments
PNA Series Microwave Network Analyzers
Preliminary Checks
E8362A, E8363A, E8364A
Cable Magnitude and Phase Stability Check
1.
With the test port cable still connected to Port 1, connect a short to the other end of the
cable.
2.
Press
Preset
.
3.
On the
Trace
menu, click
New Trace.
In the
New Trace
dialog box, click the
S11
box,
and then click
OK
.
4.
On the
Trace
menu, click
Format
. In the
Format
dialog box, click
Phase
, and then click
OK
.
5.
On the
Channel
menu, click
Average
. In the
Average
dialog box, click the
Average ON
check box. In the
Average Factor
box, type 50 or click the arrows to select 50, and then
click
OK
.
6.
To provide a good reference, hold the test cable in a straight line perpendicular to the
front panel of the network analyzer.
7.
On the
Channel
menu, click
Restart
Avg
.
8.
Wait for the analyzer to average the measurement 50 times (approximately two
seconds).
9.
To normalize the data trace:
a. On the
Trace
menu, click
Math/Memory
.
b. In the
Math/Memory
dialog box, click the
Data->Memory
button.
c. In the
Data Math
list, select
Data/Memory
.
d. Under
Trace View Options
, make sure
Data Trace
is selected.
e. Click
OK
10. Slowly make a 180 degree bend in the middle of the cable and hold it in that position.
11. For each trace: On the
Scale
menu, set the
Scale Per Division
for optimum viewing as
shown in
12. Place a marker on the largest deflection that goes above the reference line and is
within the cable’s specified frequency range. For a typical response of cable magnitude
and phase stability, see
13. Place a marker on the largest deflection that goes below the reference line and is
within the cable’s specified frequency range.
In this S
11
measurement, the displayed trace results from energy being propagated
down the cable and reflected back from the short. Therefore, the measured deflection
value must be divided in half to reach the correct value.
Содержание E8362A
Страница 11: ...Service Guide E8364 90001 1 1 1 Safety and Regulatory Information ...
Страница 19: ...Service Guide E8364 90001 2 1 2 General Product Information ...
Страница 29: ...Service Guide E8364 90001 3 1 3 Tests and Adjustments ...
Страница 79: ...Service Guide E8364 90001 4 1 4 Troubleshooting ...
Страница 139: ...Service Guide E8364 90001 5 1 5 Theory of Operation ...
Страница 169: ...Service Guide E8364 90001 6 1 6 Replaceable Parts ...
Страница 215: ...Service Guide E8364 90001 7 1 7 Repair and Replacement Procedures ...
Страница 287: ...Service Guide E8364 90001 A 1 A Error Terms ...
Страница 302: ...A 16 Service Guide E8364 90001 Error Terms PNA Series Microwave Network Analyzers Error Term Data E8362A E8363A E8364A ...
Страница 303: ...Service Guide E8364 90001 B 1 B Option Enable Utility ...
Страница 309: ...Service Guide E8364 90001 C 1 C Firmware Upgrades ...
Страница 313: ...Service Guide E8364 90001 D 1 D Operating System Recovery ...