Service Guide E8364-90026
3-43
PNA Series Microwave Network Analyzers
Tests and Adjustments
E8362B, E8363B, E8364B
Adjustments
LO Power Adjustment
The LO power adjustment is used to adjust the power level of the LO signals from the A20
LO distribution assembly. This adjustment is done for only one LO output. The differences
between each LO output is negligible; therefore, separate adjustments are not required.
Equipment used for the LO Power Adjustment
Procedure
1. Turn off the network analyzer and remove the power cable and other external cables
from the rear panel.
2. Remove the outer cover. Refer to
“Removing the Covers” on page 7-6
3. Place the analyzer on its side to allow access to the bottom of the analyzer.
4. Connect the equipment as shown in
. Connect a GPIB cable between the
analyzer and the power meter.
5. With a 5/16-inch open-end wrench, loosen W40 at the first converter (mixer).
6. At the junction of W40 and W14, place a 5/16-inch wrench on the W40 connector and a
1/4-inch wrench on the W14 connector. While holding the 1/4-in wrench to prevent W14
from rotating, disconnect W40 from W14 and move W40 aside.
7. Connect the power sensor to the end of W14, as shown in
Figure 3-19 Setup for the LO Power Adjustment
Equipment Type
Models
Used With
Model or
Part Number
Alternate Model
or Part Number
Power meter
All
E4418B/E4419B
E4418A/E4419A
Power sensor, 3.5 mm
E8362B
E4413A
8485A
Power sensor, 2.4 mm
E8363B, E8364B
8487A
None
Adapter, 2.4 mm (f) to 3.5 mm (m)
a
a. Required only if using the 8487A power sensor.
E8363B, E8364B
11901D
None
5/16-inch, open-end torque wrench
(set to 10 in-lbs)
All
N/A
N/A
1/4-inch, open-end wrench
All
N/A
N/A
Summary of Contents for E8362B
Page 11: ...Service Guide E8364 90026 1 1 1 Safety and Regulatory Information ...
Page 19: ...Service Guide E8364 90026 2 1 2 General Product Information ...
Page 33: ...Service Guide E8364 90026 3 1 3 Tests and Adjustments ...
Page 83: ...Service Guide E8364 90026 4 1 4 Troubleshooting ...
Page 151: ...Service Guide E8364 90026 5 1 5 Theory of Operation ...
Page 185: ...Service Guide E8364 90026 6 1 6 Replaceable Parts ...
Page 269: ...Service Guide E8364 90026 7 1 7 Repair and Replacement Procedures ...
Page 351: ...Service Guide E8364 90026 8 1 8 General Purpose Maintenance Procedures ...