Atten Gratten GA1483 User Manual
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Atten Gratten GA1483 User Manual

Signal generator
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Summary of Contents for Atten Gratten GA1483

  • Page 2 Preface The content in the manual is provided according to the current situation and it could be changed without prior notice in future. The company provides no warranty of any kind to this manual and assumes no liability or responsibility for any mistakes possibly contained in the manual or any occasional or subsequent loss caused by using this manual.
  • Page 3 Security identifier agreement The following security identifiers may appear in the manual. Before operating the instrument, please familiarize yourself with the identifiers and the meanings of the identifiers: WARNING: It represents that dangers may occur. It notices the user to pay attention to certain operation process, practice or similar aspects.
  • Page 4 Brief introduction of signal generator The signal generator is a desk type electronic instrument. It has a keyboard distribution that is easy to operate and a 7.0-inch TFT color liquid crystal display screen with high definition; a display interface comprises proper settings and prompt messages;...

  • Page 5: Table Of Contents

    Contents Document Overview 1 Quick Start …………………………………….……..……………..…….….. 1-1 Preparation before Use…………………………………….………...…………1 1-2 Characteristics of front panel…………………………………………. ………5 1-3 LCD user interface……………………………………………………...………8 1-4 Characteristics of back panel………………..……………………...…...……11 1-5 Keys and menu operation…………………………………………..…..……13 1-6 Parameter input ……………………….…………………………..…….……16 1-7 On-line help system……………………………………………………………..18 2 Basic Operation ……………………………………………………….……...
  • Page 6 5 Menu Mapping Image ………………………………..……………..……… 5-1 AM…………………………….…………..…………………...…………………47 5-2 AMPT…………...……………………………………………...…...…………48 5-3 FM……………………………….……………………...………...……………49 5-4 FREQ……………..……………………………………………………...………50 5-5 LF…………..…………………………………………………..……………50 5-6 PULSE………………………………………………………………...…………51 5-7 RECALL………………………………………………………….……………...51 5-8 SAVE ……………….…………………………………….………………..…52 5-9 SWEEP……………….………………………………………………….………53 5-10 SYSTEM……………………………………………………………...………54 6 Performance Index …………………………………………..……………… 7 Appendix …………………………………………………………………..……… A p p e n d i x A : a c c e s s o r i e s … … … … … … … … … … … … … … … … … . 5 9...
  • Page 7 Document Summary The manual comprises the following contents: 1. Quick Start The chapter introduces front and back panels, user interface, menu operation method, parameter input way and first-use announcements of the signal generator. 2. Basic Operation The chapter introduces the application method of radio-frequency signals of the signal generator..
  • Page 8 6. Performance Index The chapter lists the technical indexes and general technical specifications of the signal generator. 7. Appendix The chapter provides accessory details of the signal generator. Related user’s documents of the product: The user’s documents of the product include: user’s manual and programming manual.

  • Page 9: Quick Start

    Quick Start Signal Generator The chapter introduces the front and rear panels, the user interface and first-use announcements of the signal generator. The contents of the chapter are as follows:  Preparation before use  Characteristics of the front panel ...

  • Page 10: Preparation Before Use

    1 Quick Start 1-1 Preparation before use 1-1-1 Understand safety matters in use avoid Make sure to know the following safety attentions before use so as to personal injury and equipment damage.  Use right power cord Only use special power cord recognized by residential country of the product.
  • Page 11  Use suitable fuse wire Only use fuse wire with specified specification of the product.  Prevent exposure of circuit Please do not contact exposed joints and elements after the power is  Please do not operate when the product is suspected to have fault Please contact the servicemen authorized by the company if you suspect any failure of the product.
  • Page 12 connected to the instrument so as to release the electrostatic.  Know the application condition of the technical index of the signal generator In order to ensure that all the performances of the instrument reach the standard, please use the instrument at specified condition. ...
  • Page 13 1-1-3 Connect the power source The signal generator can use an AC power source. Please use the power cord provided in the accessories to connect the signal generator to the AC power source. Related to the requirement on the AC power voltage and frequency, please check the introduction in the chapter of ‘‘Characteristics of back panel’’.

  • Page 14: Characteristics Of Front Panel

    1-2 Characteristics of front panel Chart 1 Front panel structure chart Table 1 Description of front panel Item Description Name The LCD screen displays information related to the current function. The information may include status LCD display screen indicator, frequency and amplitude settings and error information.
  • Page 15 frequency offset and reference frequency. By pressing the key, the amplitude function is available. The user can set the output amplitude of AMPT (Amplitude) key the RF signal or use the menu to configure the amplitude attributes, such as power search and electric level adjustment mode.
  • Page 16 enter key progressively increasing or decreasing the data according to certain stepping, or moving the cursor that selects a file or a parameter in an information display region to the last line or the next line. Left and right keys are used for moving the data in an input box from a selected position to a high position or low position.

  • Page 17: Lcd User Interface

    1-3 LCD User interface Chart 2 Interface structure chart Table 2 User interface description Name Description The current frequency setting will be displayed in this part of the display screen. When the frequency Frequency region reference is run by using frequency offset or frequency multiplication, the value will be also displayed in the display region in this area.
  • Page 18 displayed in the region. If the current action function has a related incremental value, the value will be also displayed. The current output power electric level setting will be displayed in this part of the display screen, and the Amplitude region indicator will be also displayed in this region when amplitude offset is used, amplitude reference mode and external electric level adjustment mode are run.
  • Page 19 queue. ”FM ON” is displayed only when frequency modulation is run, and it FM ON/OFF is hidden when frequency modulation is stopped. The identifier indicates that the low-frequency signal appears in an LF OUT connector (LF ON) or the low-frequency signal does not LF ON/OFF appear in the LF OUT connector (LF OFF).

  • Page 20: Characteristics Of Back Panel

    1-4 Characteristics of back panel Chart 3 Back panel structure chart Table 4 Back interface description Interface Description Connectable AC power source type: AC power AC: 100 V - 240 V, 47 Hz - 420 Hz connector (provided with Specification of the fuse wire: fuse wire box) 5×20mm, rated value: 1A, 250V Reference clock output is implemented by connection...
  • Page 21 External pulse modulation signals into the signal generator . Pulse modulation signals OUT through BNC cable. PULSE OUT BNC connector to accept EXT IN External modulation signals into the signal generator TRIGGER OUT BNC connector. to provide Trigger signal USB Device The signal generator can be connected with an external interface USB device as “Driven Device”.

  • Page 22: Keys And Menu Operation

    1-5 Keys and menu operations 1-5-1 Key type summary  The keys on the front panel are divided into three types, including hard function keys, soft function keys and numerical value input/adjust keys. The numerical value input keys are not introduced in this section. ...
  • Page 23 Table 5 Menu execution and operation mode Type Operation method Select the corresponding menu item, and change the parameter Parameter input value by inputting digit via the keyboard. Select the corresponding menu item, and enter the Enter next submenu corresponding next submenu. Select the corresponding menu item to switch sub options of the Function switch menu item.
  • Page 24 1-5-4 Hard function keys and soft function keys description symbols and mode agreement The manual describes two kinds of keys by the following formats: Hard function key Format: key character+text box, corresponding to hard keys on the front panel, such as AM which represents an amplitude modulation function key.

  • Page 25: Parameter Input

    1-6 Parameter input Direct input of parameters can be implemented by a numeric keyboard. Parameter regulation can be implemented by direction keys and knobs. 1-6-1 Numeric keyboard The numeric keyboard consists of several parts as follows:  Numeric keys 1． The numeric keys 0 ~ 9 are used for directly inputting digits.
  • Page 26 1-6-2 Direction keys  Left and right arrow keys 4． The left and right arrow keys are used for selecting a certain numerical value in the parameter. 5． The left arrow key represents movement towards a high position, and the right arrow key represents movement towards a low position.

  • Page 27: On-Line Help System

    1-7 On-line help system The on-line help system provides help messages for each hard function key and soft function key on the front panel. The user can check related help at any time when operating the instrument. 1. Open the help system: Press down the key Help on the front panel and then there will be the help...

  • Page 28: Basic Operation

    Basic Operation Signal Generator The chapter introduces the basic operation of the signal generator. in detail. The contents of the chapter are as follows:  Use table editor  Configure RF output  Configure remote control...

  • Page 29: Use Table Editor

    2 Basic Operation 2-1 Use table editor The table editor of the signal generator can be used for simplifying a configuration task like setting of list sweep. This section detailedly introduces the basic function of the table editor by taking a list mode value table editor as an example. The operation steps are as follows: Press the PRESET...
  • Page 30 Chart 4 Configure list interface Table 6 Table editor structure description Name Description Display the parameters which is being edited at Parameter Input Area present. It is used to highlight specific table item so as to Cursor conveniently perform selection and editor operation. Menu system used for selecting table items, presetting Interface Menu tabular value and changing the table structure.
  • Page 31 2-1-1 Soft function key of table editor The following soft function keys of the table editor are used for inputting, locating, changing and saving the table item values. The More(1of2) key(Next Page)(1/2) can be pressed to access Load/Store and related soft function keys. The detailed function of the soft function key is shown in the format as follows: Table 7 Soft function description Soft function key...
  • Page 32 From Selected File, Store To File, Delete File, Goto Row, Page Upand Page Down) for loading the table items from a file of the memory catalog or storing the current table items in the memory catalog as files. 2-1-2 Modify table items in data field The existing table items can be modified by performing the following detailed steps: Use the arrow keys or knobs to move the cursor to the needed items.

  • Page 33: Configure Rf Output

    2-2 Configure RF output This section will introduce how to build RF output of continuous wave and frequency sweep to you. 2-2-1 Configure RF output of continuous wave Use these procedures to learn how to set the following parameters: RF output frequency RF reference and frequency offset RF output amplitude Amplitude reference and amplitude offset...
  • Page 34 region and action entry region of the display screen. 5. Press the up arrow key. The frequency is progressively increased by an increment value of 1MHz according to constant stepping after the up arrow is pressed once. The increment value is displayed in the action function region. 6.
  • Page 35 0.0 Hz that is a result formed by using the frequency (700MHz) output by the hard function key to subtract the reference value (700MHz). The REF reference indicator is at an activated status and the Freq Ref Off\On soft function key is switched to ON (on).
  • Page 36 OFF(RF (off) into RF ON (RF on), and at the moment, the RF signal will be output at the lowest power electric level of the RF OUTPUT connector. Press the AMPT hard function key, and input −20 dBm. It will change the amplitude into -20dBm. At the moment, new −20dBmRF output power will appear in the AMPLITUDE region and the action entry region of the display screen.
  • Page 37 The indicator on the display screen will be changed from RF OFF into RF ON, and the power of the RF OUTPUT connector is −20dBm. Use the up arrow key to progressively increase the output power by 1dB every time. The AMPLITUDE region displays 1.00dB, and the value is a value formed by adding 1 dBm to the power −20dBm output by the hard function key and then subtracting the reference power (−20dBm).
  • Page 38 and downward sweep direction. If the Sweep Direction Down Up soft function key is set as Up (UP), the values will be swept from the start frequency/amplitude to the stop frequency/amplitude. When the Sweep Direction Down Up soft function key is set as Down (Down), the values will be swept from the stop frequency/amplitude to the start frequency/amplitude.
  • Page 39 Press the Ampl Stop soft function key, and input 0dBm. It will change the stop amplitude electric level of the step sweep. Press the Points soft function key, and input 9. It will set the sweep points as 9. 10. Press the Step Dwell soft function key, and input 500mse. 11.
  • Page 40 Different from the step sweep which entirely contains equidistant linear rise/descend frequency and amplitude values, the frequency and amplitude of list sweep can rise/descend non-isometrically and non-linearly or be orderly input randomly. For convenience, the List Mode Values table can be copied from the previously configured step sweep.
  • Page 41 At the moment, the points defined in step sweep will be automatically loaded into the list. 2-2-2-5 Edit sweep points in list 1. Press RETURN to return to the last menu, press Sweep and select Off . Stopping the sweep can prevent appearance of errors when you edit the list sweep points.
  • Page 42 build an entry of point 10, and at the moment, this point only has one frequency value (the power and dwell time items are not moved downwards yet). The frequency of point 8 is still at editable status. 10. Input 590 MHz. 11.

  • Page 43: Analog Modulation Operation

    Analog Modulation Operation Signal Generator The chapter introduces the analog modulation operation of the signal generator in detail. The contents of the chapter are as follows:  Configure analog modulation  Configure AM (Amplitude Modulation)  Configure FM (Frequency Modulation) ...

  • Page 44: Configure Analog Modulation

    3 Analog Modulation Operation 3-1 Configure analog modulation The signal generator can modulate RF carrier wave by adopting four types of analog modulation: internal waveforms capable of being used by amplitude, frequency, phase and pulse are shown in the table as follows: Table 8 Analogue modulation waveform Waveform Description Sine wave...

  • Page 45: Configure Am

    3-2 Configure AM During the following procedures, you can learn how to generate amplitude modulation RF carrier wave with the following characteristics: The carrier wave frequency is set as 1340kHz.   The power electric level is set as 0dBm. ...
  • Page 46 10.0000 kHz will appear below the AM Rate soft function key. 3-2-4 Run amplitude modulation The signal generator is now configured as a carrier wave that outputs 0dBm and performs amplitude modulation at 1340 kHz; the AM modulation depth is set as 90%, and the AM modulation rate is set as 10 kHz.

  • Page 47: Configure Fm

    3-3 Configure FM During the following procedures, you can learn how to generate frequency modulation RF carrier wave with the following characteristics: The carrier wave frequency is set as 1GHz.   The power electric level is set as 0dBm. ...
  • Page 48 75.000kHz will appear below the FM Dev soft function key. Press the FM Rate soft function key, and input 10kHz. 10.0000 kHz will appear below the FM Rate soft function key. The signal generator is now already configured as a carrier wave that outputs 0dBm and performs frequency modulation at 1GHz, the frequency modulation offset is 75 kHz, the modulation rate is 10 kHz, and the carrier wave is a sine wave in waveform.

  • Page 49: Configure Φm

    3-4 Configure ΦM During the following procedures, you can learn how to generate phase modulation RF carrier wave with the following characteristics: The carrier wave frequency is set as 3.0GHz.   The power electric level is set as 0dBm. ...
  • Page 50 4. Press the ΦM/ Rate soft function key, and input10kHz. Thus, the modulation rate is set as 10kHz. The signal generator is now already configured as a carrier wave that outputs 0dBm and performs phase modulation at 3GHz, the phase offset of the carrier wave is 0.25 rad, the modulation rate is 10 kHz, and the carrier wave is a sine wave in waveform.

  • Page 51: Configure Pulse Modulation

    3-5 Configure pulse modulation During the following procedures, you can learn how to generate pulse modulation RF carrier wave with the following characteristics: The carrier wave frequency is set as 2GHz.   The power electric level is set as 0dBm. ...
  • Page 52 The signal generator is now already configured as a carrier wave that outputs 0dBm and performs pulse modulation at 2GHz, the pulse period of the carrier wave is 100 us, the pulse width is 24 us, and the modulation source is set as internal self excitation.

  • Page 53: Configure Lf Output

    3-6 Configure LF output During the procedures below, you can learn how to set the low-frequency signal output with the following characteristics:  Set the frequency as 1kHz. Set the output amplitude as 1Vp.   Set the LF waveform as LF sweep frequency sine. 3-6-1 Configure LF output frequency and amplitude 1.
  • Page 54 Thus, the start frequency of the sweep sine wave is set as 100 Hz. Press the LF Out Stop Freq soft function key, and input 1kHz. Thus, the stop frequency of the sweep sine wave is set as 1 kHz. Press RETURN Thus, return to the low-frequency output menu.

  • Page 55: Remote Control

    Remote Control Signal Generator The chapter introduces the method for remotely controlling the signal generator.
  • Page 56 4 Remote control Communication mode and command The signal generator can communicate with a PC in manners of LAN, GPIB and the like. The upper computer software of the PC terminal can use a standard SCPI (Standard Commands for Programmable Instruments) command to perform programming control on the instrument.
  • Page 58 Menu Mapping Signal Generator The chapter introduces menu mapping corresponding to each function key on the front panel of the signal generator according to the alphabetical order.

  • Page 59: Menu Mapping Image

    5 Menu Mapping Image The chapter provides the function mapping image related to the menu keys on the front panel of the signal generator according to an alphabetical order A-Z, and specifically, the meaning of each menu refers to the operation descriptions of chapter 2 and chapter 3.

  • Page 60: Ampt

    5-2 AMPT...
  • Page 61 5-3 FM Signal Generator...

  • Page 62: Freq

    5-4 FREQ 5-5 LF OUT...

  • Page 63: Pulse

    5-6 PULSE 5-7 RECALL Signal Generator...

  • Page 64: Save

    5-8 SAVE...

  • Page 65: Sweep

    5-9 SWEEP Signal Generator...

  • Page 66: System

    5-10 SYSTEM...

  • Page 67: Performance Index

    Performance Index Signal Generator The chapter lists the technical indexes and general technical specifications of the signal generator.
  • Page 68 6 Performance Index Technical indicators are applied to the following conditions:  After 30 minutes - preheating, in the working temperature store at least 2 hours not given only the data for a typical value deviation. Marked with  "typical" value of data not included in the product warranty. 1 Frequency Frequency 250kHz～4GHz...
  • Page 69 VSWR ≤1.8 Connector N type female, 50Ω nominal value Spectral purity Typical value: Carrier SSB Phase Noise ≤-115dBc/Hz ≤-105dBc/Hz ≤-115dBc/Hz Frequency 1GHz; Offset 20 kHz Carrier Residual FM(CW frequency 1GHz; ≤ 10Hz peak ≤ 30Hz peak ≤ 10Hz peak mode) Bandwidth from 0.3 to 3 kHz Harmonics...
  • Page 70 1 kHz frequency Frequency <( Set 5% + 200Hz) rate offset accuracy 50kHz offset, Phase Modulation modulation rate, Phase Deviation 0~10rad ≤ 10 kHz Resolution <1% Modulation freq 300 Hz~20 kHz 1kHz modulation Accuracy ±(set value×5%+ 0.2rad ) rate 1kHz modulation Distortion <0.1% <1.5%...
  • Page 71 Size 426 × 133 × 450 mm H x W x D Working 0°C ~ +40°C temperature Storage -40°C ~ +70°C Temperature Date Storage (Internal) Date Storage Support USB 2.0 Compatible memory devices (External)

  • Page 72: Appendix

    Appendix Signal Generator The chapter provides the relevant information of accessory details, services and support of the signal generator.

  • Page 73: Appendix A : A C C E S S O R I E

    7 Appendix Appendix A: Accessories Category Name Description Power cord One piece Standard accessories User’s manual One copy Programming manual One copy Postscript: to know more selectable components or accessories, please contact salesmen or local agencies of the company. Signal Generator...

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