If Gain Adjustment; Receiver Characterization; Receiver Adjustment - Keysight N5227A Series Service Manual

Tests and Adjustments
Adjustments
4. Follow the instructions and prompts as they are displayed.

IF Gain Adjustment

The IF gain adjustment is used to adjust the IF gain of the network analyzer.
Procedure
1. Press UTILITY
Gain Adjustment.
2. Follow the instructions and prompts as they are displayed.

Receiver Characterization

This characterizes the receivers in your analyzer.
Procedure
1. Press UTILITY
Receiver Characterization.
2. Follow the instructions and prompts as they are displayed.

Receiver Adjustment

The receiver calibration is used to adjust the network analyzer receivers for a
flat response across its full frequency range:
1. A power meter/sensor is connected to Port 1, as shown in
establish a reference for flatness.
2. A cable is inserted between the power sensor and the test port, as shown
in Figure
3. The same cable is connected between test port 1 and test port 2, as
shown in
receiver at Port 2.
The adjustment is repeated using a signal from Port 2 to adjust the "A"
receiver at Port 1.
Data obtained during this adjustment are stored in the mxcalfile_pxx files in
flash memory on the test set motherboard, with a backup copy stored on the
hard disk drive. The data are used in subsequent measurements.
Solid state drives can be swapped or replaced without concern for the
mxcalfile_pxx files. If the test set motherboard is replaced, the PNA firmware
will automatically create new primary mxcalfile_pxx files from the backup
copies on the hard drive.
These files can be recreated by performing another receiver calibration
adjustment.
3-44
Service
System , then
Service
, then
System
3-17, to establish a reference for the cable.
Figure 3-18, and a signal from Port 1 is used to adjust the "B"
Adjustments
, then , then click IF
Adjustments
, then , then click
Figure
Keysight N5227A Service Guide
3-16, to