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

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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.

1-14	Quick Start Guide

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Contents Part No. E4400-90326 Agilent Technologies ESG Family Signal GeneratorsSupersedes April Copyright 1999, 2000 Agilent Technologies Contents Getting Started Signal Generator at a Glance Creating an FM Signal Setting the Carrier FrequencySetting the Power Level Press PresetSetting the FM Deviation Setting the FM RateRF Output connector Turning On Frequency ModulationCreating a Step Sweep and a List Sweep Conﬁguring a Step SweepState ﬁrst level of sweep softkeys is displayedRF ON. The swept RF signal is now available at Turning On Continuous Step SweepPress Return PressConﬁguring a List Sweep Using Step Sweep Data Turning On List Sweep for a Single Sweep DataTurned off You triggered the single sweep in the previous stepSaving and Recalling an Instrument State Creating an Instrument StateRecalling an Instrument State Saving an Instrument StatePress Save followed by Setting Up a Digital Modulation in the GSM Format Enter −5 using the numeric keypad and press the dBm softkeySetting Up Timeslot Selecting the Data FormatThis selects the GSM communications standard Conﬁgure Timeslots has become an active softkeyPress the following softkeys Press the Timeslot Type softkey Press the Normal softkeyThis moves the softkey menu up one level Turning On the GSM Format and the Modulation Press Return twiceExploring the User Interface Front Panel Connector Will be returned to normal instrument operationAssociated with the event Numeric keypad consists of the digit keys 0 through 9, aThis connector accepts an externally supplied, analog Component of I/Q modulation. This female BNC connector isProvided only on ESG-D and ESG-DP Series Signal Generators Darken in comparison to the text on the displayFrequency and power capabilities LCD display provides information on the current instrumentTo their adjacent keys are located on the right-hand side DisplayThis hardkey lets you restore any instrument state that you Applications. This female BNC connector is provided only onSoftkey or via Scpi command. The maximum input for this Previously saved in a memory register. You can save up toDisplay DisplayMultiple error messages occur, only the most recent message Can be viewed by pressing Utility Error InfoALC circuit is disabled This annunciator appears when a sweep has been initiatedSeries Signal Generators This annunciator appears when an error message is placedView and delete error messages using the Utility menu Modulations that you have enabled are modulating the RFRF signal is present at the RF Output connector S annunciator appears when the signal generator hasGenerated a service request SRQ over the Gpib List or step modeRear Panel Timebase or 1 ppm high stability timebase Output signals for this connector Option 201 this connector is used for system reset outputTTL/CMOS high to TTL/CMOS low edge trigger. With Option UN8 Second output is generated every two seconds indicatingQ OUT connector outputs the analog, quadrature-phase BER Meas END connector outputs a signal that indicatesConnector is present only on instruments with Option UN7 BER Sync Loss connector outputs a signal that indicatesExploring the User Interface