3-44 Service Guide E8361-90001
Tests and Adjustments PNA Series Microwave Network Analyzers
Adjustments E8361A
Receiver Calibration 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 3-17, to establish a
reference for flatness.
2. A cable is inserted between the power sensor and the test port, as shown in Figure 3-18,
to establish a reference for the cable.
3. The same cable is connected between the two test ports, as shown in Figure 3-19, 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 on the hard disk
drive (where xx is a 1 or 2 digit number). The data are used in subsequent measurements.
If the hard disk drive is replaced, these mxcalfile_pxx files will be lost. Therefore, they
should be backed up (saved on a floppy disk) so that they can be restored.
These files can be recreated by performing another receiver calibration adjustment.
Equipment Used for the Receiver Calibration 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 Agilent 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
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