Keysight N5227A - Receiver Adjustment

3-44 Service Guide N5227-90001
Tests and Adjustments PNA Series Microwave Network Analyzers
Adjustments N5227A
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 Figure 3-15, to establish a reference for
flatness.
2. A cable is inserted between the power sensor and the test port, as shown in Figure 3-16, to establish a
reference for the cable.
3. The same cable is connected between test port 1 and test port 2, as shown in Figure 3-17, 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.
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
Model or 
Part Number
Alternate Model Part
Number
Power meter E4418B/E4419B E4418A/E4419A
Power sensor, Type-N
8482A
None
Power sensor, 2.4 mm
8487A
None
Power sensor, V-Band
a
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.
V8486A
None
Adapter
a
WR-15 to 1.85 mm (m)
V281B None
Adapter, 2.4 mm (f) to 2.4 mm (f) 11900B 85056-60007
Adapter, Type-N (f) to 2.4 mm (f)
b
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.
11903B None
Adapter, 1.85 mm (f) to 1.85 mm (f) 85058-60114 None
Test cable, 2.4 mm (f) to 2.4 mm (f) 85133C 85133E
Test cable 1.85 mm (f) to 1.85 mm (f) N4697E N4697-60200