Selecting the Data Format | Agilent Technologies E4400-90326

Getting Started	ESG Family Signal Generators
Setting Up a Digital Modulation in the GSM Format

Selecting the Data Format

1. Press Mode. Then press the	This selects the GSM communications standard.
following softkeys:
Real Time I/Q Baseband (if it
appears) > TDMA > GSM.
2. Press the	This toggles the Data Format Pattern Framed softkey from
Data Format Pattern Framed	Pattern to Framed. When you select Framed for bursting the
softkey.	frame envelope, you will be transmitting framed data. This means
	that you will be bursting the timeslots that you have activated and
	there will be no RF carrier during the off timeslots. Notice that
	Conﬁgure Timeslots has become an active softkey.

Setting Up Timeslot 0

1.Observe the GSM Timeslot Pattern on the display.

2.Press the Conﬁgure Timeslots softkey and observe the softkey menu.

3.Press the Timeslot Type softkey.

4.Press the Custom softkey.

5.Press the Conﬁgure Custom softkey.

Notice that the preset condition for timeslot #0 has the timeslot turned on and conﬁgured as a Normal channel.

The Timeslot # softkey shows that timeslot #0 is selected as the active timeslot. The Timeslot Off On softkey shows that timeslot #0 is turned on. Finally, the Timeslot Type softkey shows that timeslot #0 is conﬁgured as a Normal channel.

Another menu of softkeys is displayed.

This changes the timeslot type to Custom timeslot and automatically returns you to the previous softkey menu. Notice that the Timeslot Type softkey has changed from Normal to Custom. Also notice that the display shows timeslot #0 conﬁgured as a Custom timeslot.

Another menu is displayed showing you data choices for the timeslot’s transmission. Notice that the display has changed, showing you a visual representation of the timeslot. Directly below the visual representation of the timeslot, you should see Data: PN9. PN9 is the default timeslot transmission data.

1-12	Quick Start Guide

Image 14

Agilent Technologies E4400-90326 Selecting the Data Format, Setting Up Timeslot, Another menu of softkeys is displayed

Contents

Supersedes April Copyright 1999, 2000 Agilent Technologies Agilent Technologies ESG Family Signal GeneratorsPart No. E4400-90326 Contents Getting Started Signal Generator at a Glance Setting the Power Level Creating an FM SignalSetting the Carrier Frequency Press Preset RF Output connector Setting the FM DeviationSetting the FM Rate Turning On Frequency Modulation State Creating a Step Sweep and a List SweepConﬁguring a Step Sweep ﬁrst level of sweep softkeys is displayed Press Return RF ON. The swept RF signal is now available atTurning On Continuous Step Sweep Press Conﬁguring a List Sweep Using Step Sweep Data Turned off Turning On List Sweep for a Single SweepData You triggered the single sweep in the previous step Saving and Recalling an Instrument State Creating an Instrument State Press Save followed by Saving an Instrument StateRecalling an Instrument State Setting Up a Digital Modulation in the GSM Format Enter −5 using the numeric keypad and press the dBm softkey This selects the GSM communications standard Setting Up TimeslotSelecting the Data Format Conﬁgure Timeslots has become an active softkey This moves the softkey menu up one level Press the Timeslot Type softkey Press the Normal softkeyPress the following softkeys Turning On the GSM Format and the Modulation Press Return twice Exploring the User Interface Front Panel Associated with the event ConnectorWill be returned to normal instrument operation Numeric keypad consists of the digit keys 0 through 9, a Provided only on ESG-D and ESG-DP Series Signal Generators This connector accepts an externally supplied, analogComponent of I/Q modulation. This female BNC connector is Darken in comparison to the text on the display To their adjacent keys are located on the right-hand side Frequency and power capabilitiesLCD display provides information on the current instrument Display Softkey or via Scpi command. The maximum input for this This hardkey lets you restore any instrument state that youApplications. This female BNC connector is provided only on Previously saved in a memory register. You can save up to Display Display ALC circuit is disabled Multiple error messages occur, only the most recent messageCan be viewed by pressing Utility Error Info This annunciator appears when a sweep has been initiated View and delete error messages using the Utility menu Series Signal GeneratorsThis annunciator appears when an error message is placed Modulations that you have enabled are modulating the RF Generated a service request SRQ over the Gpib RF signal is present at the RF Output connectorS annunciator appears when the signal generator has List or step mode Rear Panel Timebase or 1 ppm high stability timebase TTL/CMOS high to TTL/CMOS low edge trigger. With Option UN8 Output signals for this connectorOption 201 this connector is used for system reset output Second output is generated every two seconds indicating Connector is present only on instruments with Option UN7 Q OUT connector outputs the analog, quadrature-phaseBER Meas END connector outputs a signal that indicates BER Sync Loss connector outputs a signal that indicates Exploring the User Interface