Lo Offset Adjustment - Agilent Technologies E8362C Service Manual

PNA Series Microwave Network Analyzers
E8362C, E8363C, E836C

LO Offset 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
Equipment Type
Power meter
Power sensor, 2.4 mm
Adapter, 3.5 mm (m) to 2.4 mm (f)
Adapter, SMA (m) to SMA (f), right angle
5/16 inch, open-end torque wrench (set to
10 in-lbs)
a. The E4413A 3.5 mm power sensor may be used instead of the 8487A power sensor and
11901D adapter.
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
3. Connect a GPIB cable between the analyzer and the power meter.
4. Remove the semi-rigid cable connected to J3 LO OUT and the RECEIVER LO IN on the A13 frequency
offset receiver assembly.
5. Connect the right angle adapter to A13 LO OUT connector.
Figure 3-20 Setup for the LO Offset Adjustment
6. Connect the power sensor 8487A and the 11901D adapter or the E4413A power sensor to the end of the
Service Guide E8364-90038
Model or
Part Number
E4418B/E4419B
8487A
11901D
1250-1249
8710-1765
"Removing the Covers" on page
Tests and Adjustments
Alternate Model
or Part Number
E4418A/E4419A
a
E4413A
Equivalent
N/A
7-6.
Adjustments
3-43