Keysight Technologies InfiniiMax III Series, User Manual

Page: 79 / 128

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5. Performance Verification
Bandwidth Performance Verification
• IF BW: 1 kHz.
• Test port cables and adaptors (if needed) to provide male 2.92 mm
connectors at measurement planes.
• Install the BNC 50 ohm terminator to the bias input for port 1 of the
VNA (on the rear panel of E8361 PNA). This provides a DC 50 ohm
termination for the probe amp output.
• Clear all traces from display, then select S12 to display.
• Set scale for S12 to 3 dB/div, with reference level to 0 dB and reference
position to 5 divisions.
Procedure
1
Calibrate the PNA to the two male 2.92 mm connectors (connectors
can be seen in Figure 55 ) using the N4692A-00F ECal module (or
equivalent 2.92 mm cal kit).
C A U T I O N As with all precision connector interfaces, make sure to torque all connections using
the proper torque wrench!
2
Prepare the N5439A ZIF probe head for connection to the PV fixture as
shown in Figure 54 .
a
Install a N5440A ceramic ZIF tip into the N5439A ZIF probe head.
Make sure it is fully inserted.
b
Bend the tip wires down at their halfway point using fine tweezers.
c
Slightly spread the tips wires to better match the spacing needed
for the PV fixture.
Figure 54 N5439A ZIF Probe Head
3
Connect the 1250-1749 adapter and N5443A PV fixture assembly to
the calibrated ports of the PNA as shown in Figure 55 . A small bench
vise is useful to hold PV fixture steady.