Keysight Technologies N5290/1A PNA Series Service Manual page 48

System Tests and Adjustments
The N5290/1A Millimeter Test System Preliminary Check
For more, refer to
Equipment Type
Calibration kit, 1.0 mm
1.00 mm (f) to 1.00 mm (f) (short thru)
a. This is a short thru that is not included in the 85059B calibration kit.
Head Cable Stability Check
For best results, instruments should be powered up for two hours. If
instruments are not warmed up, the trances will be unstable.
1. Press UTILITY > Preset.
2. Connect short (f) to head.
3. Allow the analyzer and heads to warm up for two hours, before
4. Setting analyzer for dual trace display showing both the reference and
3-12
"Required Service Test Equipment" on page
Model of Part Number
85059B
11920-60002
proceeding.
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 Instrument > 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.
Alternate Model or Part
Number
Equivalent or better
n/a
a
Keysight N5290/1A Service Guide
2-3.