Getting Started

ESG Family Signal Generators

Setting Up a Digital Modulation in the GSM Format

 

Turning On the GSM Format and the Modulation

The signal generator is now configured to burst two uplink timeslots with a −5.0 dBm, GMSK digitally modulated carrier at 891 MHz. Follow these remaining steps to output the framed data.

1. Press Return twice.

This moves the softkey menu up two levels. The first GSM

 

softkey menu should be displayed. (The first softkey in this menu

 

is GSM Off On.)

2.Press the GSM Off On softkey. This toggles the GSM Off On softkey from Off to On. At this time the internal baseband generator generates the internal data patterns that you have configured for timeslots 0 and 7.

A message is displayed while this process is taking place. Notice also that the following display annunciators are turned on:

GSM indicates that you have enabled the GSM standard.

I/Q indicates that I/Q modulation is being generated.

ENVLP indicates that burst is activated for transmitting framed data.

3. Press RF On/Off.

Notice that the display annunciator changes from RF OFF to

 

RF ON. The modulated signal is now available at the

 

RF OUTPUT connector.

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Quick Start Guide

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Agilent Technologies E4400-90326 quick start Turning On the GSM Format and the Modulation, Press Return twice