Keysight Technologies X Series - Configuring the Front Panel Inputs

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Keysight EXG and MXG X-Series Signal Generators User’s Guide 149

Basic Digital Operation for N5172B/82B—No BBG Option Installed

I/Q Modulation

Configuring the Front Panel Inputs

The MXG/EXG accepts externally supplied analog I and Q signals through the front panel I Input

and Q Input for modulating onto the carrier.

1. Connect I and Q signals to the front panel connectors. For voltage levels, refer to “Front Panel

Overview” on page 16.

a. Connect an analog I signal to the signal generator’s front panel I Input.

b. Connect an analog Q signal to the signal generator’s front panel Q Input.

2. Turn on the I/Q modulator: Press I/Q Off On to On.

3. Configure the RF output:

a. Set the carrier frequency.

b. Set the carrier amplitude.

c. Turn the RF output on.

4. Make adjustments to the I/Q signals (page 148) as needed.

Quadrature Angle

EVM error phase skew

I/Q Images I/Q path delay

Table 7-1 I/Q Adjustments Uses

I/Q Adjustment Effect Impairment

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