Setting up the Measurement System

The following figure shows the instrument connection of EVM vs. Power measurement.

In the system connection diagram above, the dark blue lines are for RF connection; the light blue lines are for reference and trigger signal connection; the black lines are for instrument control connection with LAN or GPIB; the dotted line is for PA enable signal connection and it is optional for this test.
The BB TRIG 1 output (for N5172B/N5182B, TRIG OUT for N5182A, EVENT 2 for E4438C) may not act as the PA enable input for the PA directly because of the limit of its voltage and current output. The PA enable input can be provided by the user or generated with another functional generator using BB TRIG 1 output as a reference.
For the PA Enable Trigger connection, if you are using N5182A as RF Signal Generator, you need to route Marker 2 output to TRIG OUT port manually by pressing Dual ARB, Marker Utilities, Route Connectors, Route to Trig Out BNC, BBG Markers, Marker 2 on the front panel.

Instrument Requirements

The table shows the requirement for the instruments used in DPD measurement. For details about the options required for each instrument model, refer to System Requirements.

Instrument Type Instrument Model Supported
RF Signal Generator

E4438C ESG

E8267D PSG

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 RF Signal Generator and Signal Analyzer through LAN or GPIB.

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

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

  4. (Optional) Connect the BB TRIG 1 port (for N5172B/N5182B, TRIG OUT port for N5182A, EVENT 2 port for E4438C) on the rear panel of the RF Signal Generator to the PA enable port of the PA.

    If you are using N5182A as RF Signal Generator, you need to route Marker 2 output to TRIG OUT port manually by pressing Dual ARB, Marker Utilities, Route Connectors, Route to Trig Out BNC, BBG Markers, Marker 2 on the front panel.

  5. Connect the RF OUTPUT port of the RF Signal Generator to the input of the PA and connect the output of the PA to the RF INPUT port of the Signal Analyzer.