qsg.book Page i Friday, September 22, 2000 3:13 PM Quick Start Guide Agilent Technologies ESG Family Signal Generators Serial Number Prefixes: (Affix Label Here) Part No.
qsg.book Page iii Friday, September 22, 2000 3:13 PM Contents 1. Getting Started The Signal Generator at a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Creating an FM Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting the Carrier Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting the Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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qsg.book Page 2 Friday, September 22, 2000 3:13 PM Getting Started The Signal Generator at a Glance ESG Family Signal Generators The Signal Generator at a Glance Refer to the figure and descriptions below as you use the procedures in this chapter. For detailed front and rear panel information, refer to Chapter 2, “Exploring the User Interface.” 1. Active Entry Area. The current active function is shown in this area. 8. Menu Keys.
qsg.book Page 3 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Getting Started Creating an FM Signal Creating an FM Signal This procedure will show you how to configure the signal generator to output a frequency-modulated signal with the following characteristics: • carrier frequency set to 104.9 MHz • power level set to 0 dBm • FM deviation set to 75 kHz • FM rate set to 10 kHz Setting the Carrier Frequency 1. Press Preset.
qsg.book Page 4 Friday, September 22, 2000 3:13 PM Getting Started Creating an FM Signal ESG Family Signal Generators Setting the FM Deviation 1. Press FM/φM. The first level menu of FM softkeys is displayed. 2. Press the FM Dev softkey. FM deviation becomes the active function and the preset value for FM deviation is displayed in the active entry area. 3. Enter 75 using the numeric keypad and press the kHz softkey. The new FM deviation is displayed below the FM Dev softkey. You should see 75.
qsg.book Page 5 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Getting Started Creating a Step Sweep and a List Sweep Creating a Step Sweep and a List Sweep This section will show you two ways to set up the signal generator to sweep a defined set of points. You will create a ten-point step sweep with the settings listed below, then use these points as the basis for a new list sweep.
qsg.book Page 6 Friday, September 22, 2000 3:13 PM Getting Started Creating a Step Sweep and a List Sweep ESG Family Signal Generators 8. Press the Ampl Stop softkey. Enter 0 using the numeric keypad and press the dBm softkey. This sets the new power level for the end of the step sweep to 0 dBm. 9. Press the # Points softkey. Enter 10 by rotating the front panel knob until the number 10 is displayed. This sets the number of points in the step sweep. 10. Press the Step Dwell softkey.
qsg.book Page 7 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Getting Started Creating a Step Sweep and a List Sweep Configuring a List Sweep Using Step Sweep Data 1. Press the Sweep Type List Step softkey. This toggles the Sweep Type List Step softkey from Step to List. 2. Press the Configure List Sweep softkey. Another menu is displayed with softkeys that you will use to create the sweep points. Notice that the display shows the current list data.
qsg.book Page 8 Friday, September 22, 2000 3:13 PM Getting Started Creating a Step Sweep and a List Sweep ESG Family Signal Generators Turning On List Sweep for a Single Sweep 1. Press Return. This moves the softkey menu up one level. Notice that the Sweep softkey is still set to sweep both frequency and amplitude data. 2. Press the This toggles the Sweep Repeat Single Cont softkey from Cont to Single. Notice that the SWEEP display annunciator is turned off. Sweep Repeat Single Cont softkey. 3.
qsg.book Page 9 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Getting Started Saving and Recalling an Instrument State Saving and Recalling an Instrument State Using this procedure, you will learn how to save instrument settings to a memory register and to recall the settings. Creating an Instrument State 1. Press Preset. This sets the signal generator to its factory-defined instrument state. 2. Press Frequency.
qsg.book Page 10 Friday, September 22, 2000 3:13 PM Getting Started Saving and Recalling an Instrument State ESG Family Signal Generators Saving an Instrument State 1. Press Save followed by the Select Seq softkey. The sequence number becomes the active function. The signal generator displays the last sequence that you have used. 2. Enter 1 using the numeric keypad and press the Enter softkey. This sets the sequence number to 1. (You can also use the arrow keys to enter the sequence number.) 3.
qsg.book Page 11 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Getting Started Setting Up a Digital Modulation in the GSM Format Setting Up a Digital Modulation in the GSM Format NOTE You must have an ESG-D or ESG-DP Series Signal Generator with Option UN8 to perform this procedure.
qsg.book Page 12 Friday, September 22, 2000 3:13 PM Getting Started Setting Up a Digital Modulation in the GSM Format ESG Family Signal Generators Selecting the Data Format 1. Press Mode. Then press the following softkeys: Real Time I/Q Baseband (if it appears) > TDMA > GSM. This selects the GSM communications standard. 2. Press the This toggles the Data Format Pattern Framed softkey from Pattern to Framed. When you select Framed for bursting the frame envelope, you will be transmitting framed data.
qsg.book Page 13 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Getting Started Setting Up a Digital Modulation in the GSM Format 6. Press the FIX4 softkey. This changes the transmitted data to a fixed 4-bit repeating sequence. The default 4-bit repeating sequence of 0000 is shown in the active entry area of the display. 7. Enter 1010 using the numeric keypad and press the Enter softkey. This changes the pattern from 0000 to 1010.
qsg.book Page 14 Friday, September 22, 2000 3:13 PM Getting Started Setting Up a Digital Modulation in the GSM Format ESG Family Signal Generators 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.
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qsg.book Page 2 Friday, September 22, 2000 3:13 PM Exploring the User Interface Front Panel ESG Family Signal Generators Front Panel The following pages describe the numbered items shown in the figure below.
qsg.book Page 3 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Exploring the User Interface Front Panel 1. EXT 1 INPUT This female BNC input connector accepts a 1-Vpk signal for FM, ΦM, and AM. 2. EXT 2 INPUT This female BNC input connector accepts a 1-Vpk signal for FM, ΦM, AM, and pulse modulation. 3. Help Press this hardkey for a short textual description of the function of the front panel hardkeys and softkeys.
qsg.book Page 4 Friday, September 22, 2000 3:13 PM Exploring the User Interface Front Panel ESG Family Signal Generators 11. Return The Return key cancels the current active function and moves you from your current softkey menu to the softkey menu that precedes it. 12. Display Contrast Decrease Press this key and hold it down to cause the display background to darken in comparison to the text on the display. 13.
qsg.book Page 5 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Exploring the User Interface Front Panel 21. Display The LCD display provides information on the current instrument state such as modulation status, frequency and amplitude settings, status indicators, and error messages. Softkey labels corresponding to their adjacent keys are located on the right-hand side of the display. 22. Hold Press this hardkey to deactivate the currently active function and blank the softkey menu.
qsg.book Page 6 Friday, September 22, 2000 3:13 PM Exploring the User Interface Front Panel ESG Family Signal Generators 30. Recall This hardkey lets you restore any instrument state that you previously saved in a memory register. You can save up to 100 different instrument states in a combination of 100 memory registers and 10 register sequences. The number of states you can save, however, is limited by the size of whatever else is stored in the file system. 31.
qsg.book Page 7 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Exploring the User Interface Display Display The following pages describe the numbered items shown in the figure below. 1. Frequency Area The current CW frequency setting is shown in this portion of the display. 2. Amplitude Area The current output power level setting is shown in this portion of the display. 3.
qsg.book Page 8 Friday, September 22, 2000 3:13 PM Exploring the User Interface Display ESG Family Signal Generators 4. Error Messages Area Abbreviated error messages are reported in this space. When multiple error messages occur, only the most recent message remains displayed. All of the reported error messages with details can be viewed by pressing Utility > Error Info > View Next Error Message. 5.
qsg.book Page 9 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Exploring the User Interface Display ENVLP This annunciator appears if the burst envelope modulation is turned on. This annunciator is present only on ESG-D and ESG-DP Series Signal Generators. ERR This annunciator appears when an error message is placed in the error queue. This annunciator will not turn off until you have either viewed all of the error messages or cleared the error queue.
qsg.book Page 10 Friday, September 22, 2000 3:13 PM Exploring the User Interface Display 2-10 ESG Family Signal Generators RF OFF This annunciator toggles between RF OFF and RF ON and is always visible in the display. This annunciator indicates whether the RF signal is present at the RF OUTPUT connector. S The S annunciator appears when the signal generator has generated a service request (SRQ) over the GPIB. SWEEP This annunciator appears when the signal generator is sweeping in list or step mode.
qsg.book Page 11 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Exploring the User Interface Rear Panel Rear Panel The following pages describe the numbered items shown in the figure below. 1. AC Power Receptacle The power cord receptacle accepts a three-pronged cable that is shipped with the instrument. The line voltage is connected here. 2. GPIB The GPIB connector allows communications with compatible devices such as external controllers.
qsg.book Page 12 Friday, September 22, 2000 3:13 PM Exploring the User Interface Rear Panel ESG Family Signal Generators 4. AUXILIARY INTERFACE This male DB-9 connector is an RS-232 serial port that can be used for controlling the signal generator remotely. It is functionally equivalent to the GPIB connector. 5. DATA CLK OUT The TTL/CMOS-compatible DATA CLK OUT connector outputs a clock signal for digital modulation data.
qsg.book Page 13 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Exploring the User Interface Rear Panel 12. PATTERN TRIG IN This input can accept either a TTL/CMOS low to TTL/CMOS high or TTL/CMOS high to TTL/CMOS low edge trigger. With Option UN8 this input triggers the internal digital modulation pattern generator to start a single pattern output or to stop and re-synchronize a pattern that is being continuously output.
qsg.book Page 14 Friday, September 22, 2000 3:13 PM Exploring the User Interface Rear Panel ESG Family Signal Generators 18. BASEBAND GEN REF IN With Option UN8 enabled, the BASEBAND GEN REF IN connector accepts a 0 to +20 dBm sinewave or TTL squarewave signal from an external 13-MHz timebase reference. This female BNC connector is present only on instruments with Options UND or UN8. 19.
qsg.book Page 15 Friday, September 22, 2000 3:13 PM ESG Family Signal Generators Exploring the User Interface Rear Panel 26. BER DATA IN Use this connector to input the data streams for the bit-error-rate measurements. This female BNC connector is present only on instruments with Option UN7. 27. BER CLK IN Use this connector to input the clock signal for the bit-error-rate measurements. This female BNC connector is present only on instruments with Option UN7. 28.