Receiver Adjustment - Keysight Technologies N5221A Service Manual

Tests and Adjustments
Adjustments
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
2. A cable is inserted between the power sensor and the test port, as shown
3. The same cable is connected between test port 1 and test port 2, as
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.
Equipment Used for the Receiver Adjustment
Equipment Type
Power meter
Power sensor, 3.5 mm
Adapter, 3.5 mm (f) to 3.5 mm (f)
RF Cable, 3.5 mm (f) to 3.5 mm (f)
Procedure
1. Connect the equipment as shown in
3-44
establish a reference for flatness.
in Figure 3-17, to establish a reference for the cable.
shown in Figure 3-18, and a signal from Port 1 is used to adjust the "B"
receiver at Port 2.
The adjustment is repeated using a signal from Port 2 to adjust the "A"
receiver at Port 1.
between the network analyzer and the power meter.
Model or Alternate Model Part
Part Number Number
E4418B/E4419B E4418A/E4419A
E4413A 8485A
83059B 85052-60012
85131C 85131E
Figure 3-16. Connect a GPIB cable
Keysight N5221A/22A Service Guide
Figure 3-16, to