Real-time Fading Setup

The following example procedure shows you how to configure the equipment and N7605C Signal Studio software to set up real-time fading on a signal.

Step 1: Set up the equipment as shown below and connect the N7605C with the signal generator

Step 2: Configure the Basic Settings of the Fader

Step 3: Configure the Fader Path

Step 4: Set the Frequency and Amplitude for the Signal Generator

Step 5: Turn on the Fader

Step 1: Set up the equipment as shown below and connect the N7605C with the signal generator

  1. From the signal studio tool bar, click System > Run System Configuration Wizard.

  2. In Step 1 of the System Configuration Wizard, select RF Signal Generator.

  3. In Step 2 of the System Configuration Wizard, select <New>.

  4. In Step 3 of the System Configuration Wizard, enter the hostname or IP address of the signal generator.

  5. Wait for Step 4 of the System Configuration Wizard to test the connection.

  6. In Step 5 of the System Configuration Wizard, enter a name for your system and click Finish.

Step 2: Configure the Basic Settings of the Fader

Click the Fading node in the tree view, Set the Carrier Frequency and Random Seed to the values below. Note that if you change the Carrier Frequency value, the Doppler Frequency or Vehicle Speed under Fader Path node will be changed accordingly.

Carrier Frequency: 1 GHz

Random Seed: 0x12345678901234567890123

Step 3: Configure the Fader Path

  1. Click the Fader Path node in the tree view to enter the fader path setting window.

  2. Click the Columns button on the top of the window to select the parameters you want to configure and then set the fader paths as below.

Step 4: Set the Frequency and Amplitude for the Signal Generator

Click the Instrument node in the tree view and set the amplitude as shown below.

Note that the Frequency setting here is coupled with the Carrier Frequency settings under the Fading node in the tree view. And if you change the frequency value in either place, the Doppler Frequency or Vehicle Speed under Fader Path node will be changed accordingly.

Amplitude: -30 dBm

Step 5: Turn on the Fader

Before Step 5, you need to make sure the main signal, which the fader will apply on, should be set under one of the following three menus: Dual ARB, ARB Custom Modulation or Real-Time Custom Modulation under the Mode key on the front panel of the signal generator. Or the fader will not be applied and an error message will appear.

Click the Fader On button on the top of the window.