1. Setting up the Measurement System

The figure below shows the instrument connection for dual-band DPD measurement.

In the system connection diagram above, the thick blue lines are for RF connection; the thin blue lines are for reference and trigger signal connection; the black lines are for instrument control connection with LAN or GPIB.
If one N5182B/N5172B and one N5182A are used in the setup as signal generators, then the N5182B/N5172B must be used as Signal Generator 1 and N5182A as Signal Generator 2, otherwise, DPD measurement will fail.

Instrument Requirements

The table below shows the instrument requirements used in a dual-band DPD measurement. For details about the options required for each instrument model, refer to System Requirements.

Instrument Type Instrument Model Supported
RF Signal Generator

N5182A MXG

N5182B MXG

N5172B EXG
Signal Analyzer

N9010A EXA

N9020A MXA

N9030A PXA

System Connection

To set up the measurement system, follow the steps below:

  1. Connect the PC installed with N7614B Signal Studio with the Signal Generators and Signal Analyzer through LAN or GPIB.

  2. Connect the EVENT 1 port on the rear panel of the Signal Generator 1 to the PAT TRIG port on the rear panel of the Signal Generator 2 using a BNC cable. This is to allow the two SGs transmit signals simultaneously.

  3. Connect the EVENT 1 port on the rear panel of the Signal Generator 2 to the Trigger IN 1 port on the rear panel of the Signal Analyzer using a BNC cable. This is to synchronize the Signal Generators and Signal Analyzer in time domain.

  4. Connect the 10 MHz OUT port on the rear panel of the Signal Generator 1 to the REF IN port on the rear panel of the Signal Generator 2 using a BNC cable.

  5. Connect the 10 MHz OUT port on the rear panel of the Signal Generator 2 to the EXT REF IN port on the rear panel of the Signal Analyzer using a BNC cable.

  6. Combine the RF output of the Signal Generators to the input of the PA and connect the output of the PA to the RF INPUT port of the Signal Analyzer.