This adjustment will calibrate power accuracy through the upconverter. The UPC bypass path is calibrated by measuring the loss through the bypass path. Then the UPC part of the calibration will calibrate each attenuator step.
The network analyzer used in this adjustments must be calibrated prior to running the adjustment. The calibration will need to be repeated once every three days or if the connectors or cables have been disturbed. If it's been within the three day time-frame and the connectors and cables have not been disturbed, then the network analyzer calibration is not necessary and you may proceed with the adjustment.
Due to the sensitivity of this calibration, use good quality cables and adapters, minimize cable movement, and avoid bending the cables unnecessarily.
Test Equipment |
Recommended Model1 |
Signal Generator |
N5182B Opt. 506, 1EA, FRQ |
Network Analyzer |
N5247B2 Options [423 or 425], 080, and 088 |
Power Meter |
N1914A |
Power Sensor |
E9304A-H19 |
Cal kit, ECal, Type-N |
N4690D-M0F |
Cable, 2.4 mm (f) to 2.4 mm (m)
|
8121-2065 |
Adapter, 2.4 mm (f) to Type-N (m) |
11903D |
Adapter, 2.4 mm (f) to Type-N (f) |
11903B |
|
The power meter used in these procedures will be controlled by the network analyzer through the GPIB connection from the power meter to the network analyzer. Therefore the power meter needs to be added to the Keysight Connection expert via a remote GPIB interface.
The following steps will explain how to configure the PNA and the power meter's remote GPIB interface.
|
When using an NI IO card or NI USB-to-GPIB converter, be sure that the NI-VISA Passport for Tulip has been enabled to recognize and detect Keysight hardware. Refer to the following document for more detailed troubleshooting instructions: http://literature.cdn.keysight.com/litweb/pdf/5990-3731EN.pdf |
Ensure that Remote IO Server is enabled on the PNA.
Click on the gear in the upper-right, then select Settings > Remote IO Server options. Ensure Enable Remoter IO Server and Auto-Start Remote IO Servers on Machine Setup are selected.
Close Keysight Connection Expert, and restart the Network Analyzer application by double clicking on the shortcut from the PNA front panel.
Make the GPIB cable connections so that the PNA can control the power meter.
Configure the remote GPIB interface on the PC and in TME.
Click on Test Connection to verify that the connection was made.
In Keysight Connection Expert, you should now see the remote GPIB interface you have created, and the power meter that is connected (by GPIB) to the controller of the PNA.
Now in TME Station Administration, map the power meter to the appropriate board and address. Using the example above, the correct board is 3 and the address is 13.
Power sensor calibration.
Power calibration
S-parameter calibration
Power verification