Receiver Adjustment - Keysight Technologies M937 A PXIe Series Service Manual

Tests, Adjustments, and Troubleshooting
Adjustments

Receiver Adjustment

The receiver calibration is used to adjust your network analyzer for a flat
response across its full frequency range:
1. A USB power sensor is connected to analyzer Port 1 to establish a reference
2. A cable is inserted between the power sensor and the test port to establish
3. The same cable is connected between analyzer Port 1 and Port 2, and a
4. The adjustment is repeated using a signal from Port 2 to adjust the "A"
Data obtained during this adjustment are stored in the analyzer and used in
subsequent measurements. Data can be recreated by performing another
receiver calibration adjustment.
Equipment Used for the Receiver Adjustment
Equipment Type
USB Thermocouple power sensor
Adapter, 3.5 mm -m- to 3.5 mm
-m-
RF cable, 3.5 mm (-m- to -m-)
a.
If not available, use any power meter with one or two sensors that cover the frequency range of the DUT.
b. Refer to "Get the Hardware Required for your GPIB Instruments" on page
Procedure
1. Connect the USB power sensor and adapter to the analyzer Port 1. If using
2. Press Utility > System > Service > Ad justments.
3. In the Select Desired Adjustment dialog box, click Receiver Ad justment.
4. Follow the instructions and prompts as they are displayed. If using a power
Keysight M937xA PXIe Service Guide
for flatness.
a reference for the cable.
signal from Port 1 is used to adjust the "B" receiver at Port 2.
receiver at Port1.
Model or Part Number
U8485A Option 200
83059A
11500E
a power meter, make the proper GPIB connections. Refer to
Hardware Required for your GPIB Instruments" on page
meter, ensure the GPIB settings for the sensor(s) are correct in the dialog
box.
Al ternate Model or Part Number
a
N8485A power meter
85052-60014
Any equivalent
2-5.
b
"Get the
2-5.
2-47