Keysight Technologies N5222B, Service Manual

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3-12 Keysight N5290/1A Service Guide
System Tests and Adjustments
The N5290/1A Millimeter Test System Preliminary Check
3-
For more, refer to “Required Service Test Equipment” on page 2-3 .
Head Cable Stability Check
1. Press UTILITY > Preset .
2. Connect short (f) to head.
3. Allow the analyzer and heads to warm up for two hours, before
proceeding.
4. Setting analyzer for dual trace display showing both the reference and
receiver traces (i.e., B2,2 and R2,2 for port 1 and port 2.):
Example of Port 2 Setup:
a. Set trace 1 to B2,2: Press I nstrument > Trace > Trace Setup >
Measure > Receivers > B,2 > OK
Trace 1 should display a green LED in the Trace softkey Menu
b. Change scale R,1 trace 2: Press Instrument > Trace > Trace Setup >
Measure > Receivers > R2,2 >OK .
Trace 1 and Trace 2 should display a green LED in the Trace softkey
Menu.
c. Change scale B2,2 trace 1: Press Response > Scale > Scale > 0.1
Enter .
d. Change scale R2,2 trace 2: Press Response > Scale > Scale > 0.1
Enter .
e. Narrow IF bandwidth: Press Response > Avg BW> IF Bandwidth >
100 > Enter .
f. Normalize the traces: Press Response > Math > Normalize
Repeat for the other trace.
Equipment Type Model of Part Number Alternate Model or Part
Number
Calibration kit, 1.0 mm 85059B Equivalent or better
1.00 mm (f) to 1.00 mm (f) (short thru)
11920-60002
a
n/a
a. This is a short thru that is not included in the 85059B calibration kit.
For best results, instruments should be powered up for two hours. If
instruments are not warmed up, the trances will be unstable.