Receiver Adjustment - Keysight N5227A Service Manual

Tests and Adjustments
Adjustments

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
flatness.
2. A cable is inserted between the power sensor and the test port, as shown in
reference for the cable.
3. The same cable is connected between test port 1 and test port 2, as shown in
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.
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, Type-N
Power sensor, 2.4 mm
a
Power sensor, V-Band
a
Adapter WR-15 to 1.85 mm (m)
Adapter, 2.4 mm (f) to 2.4 mm (f)
Adapter, Type-N (f) to 2.4 mm (f)
Adapter, 1.85 mm (f) to 1.85 mm (f)
Test cable, 2.4 mm (f) to 2.4 mm (f)
Test cable 1.85 mm (f) to 1.85 mm (f)
a. This sensor and adapter must be calibrated together by the Keysight factory. The data supplied
is only valid as long as the sensor and adapter remain connected.
b. The 1.85 mm connector has the same ruggedness and is compatible with the 2.4 mm
connectors. 1.85 mm and 2.4 mm adapters are interchangeable.
3-44
Model or 
Part Number
E4418B/E4419B
8482A
8487A
V8486A
V281B
11900B
11903B
b
85058-60114
85133C
N4697E
PNA Series Microwave Network Analyzers
Figure 3-15, to establish a reference for
Figure 3-16, to establish a
Figure
Alternate Model Part
Number
E4418A/E4419A
None
None
None
None
85056-60007
None
None
85133E
N4697-60200
Service Guide N5227-90001
N5227A
3-17, and a signal