Dual-Channel Arbitrary Waveform Generator User Manual FG-2102 FG-2252 FG-2502 FG-2602
General Warranty We warrants that the product will be free from defects in materials and workmanship for a period of 3 years (1 year for accessories) from the date of purchase of the product by the original purchaser from the our Company. This warranty only applies to the original purchaser and is not transferable to the third party.
Table of Contents 1.General Safety Requirements..................................................................................... 1 2.Safety Terms and Symbols ......................................................................................... 2 3.General Characteristics ............................................................................................. 3 4.Quick Start ................................................................................................................
FSK (Frequency Shift Keying) .................................................................................................................. 26 ASK (Amplitude Shift Keying) ................................................................................................................. 28 PSK (Phase Shift Keying) ......................................................................................................................... 29 To Generate Sweep ..................................................
1.General Safety Requirements 1. General Safety Requirements Before any operations, please read the following safety precautions to avoid any possible bodily injury and prevent this product or any other products connected from damage. In order to avoid any contingent danger, this product is only used within the range specified. Check AC power input setting according to the standards in your own country (see page 8, AC Power Input Setting). Only the qualified technicians can implement the maintenance.
2.Safety Terms and Symbols 2. Safety Terms and Symbols Safety Terms Terms in this Manual. The following terms may appear in this manual: Warning: Warning indicates the conditions or practices that could result in injury or loss of life. Caution: Caution indicates the conditions or practices that could result in damage to this product or other property. Terms on the Product. The following terms may appear on this product: Danger: It indicates an injury or hazard may immediately happen.
3.General Characteristics 3. General Characteristics The product is dual-channel multi-function generator which combines Arbitrary Waveform Generation and Function Generation. The product introduces Direct Digital Synthesizer (DDS) technology to provide stable, precise, pure and low distortion signal. The user-friendly interface design and panel layout bring exceptional user experience. Support USB storage device. Provide more alternative solutions for users. Features and benefits: 3.
4.Quick Start 4.
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4.Quick Start when CH2 is tuned on. ⑩ CH2 Output Output signal of CH2 ⑪ Foot stool Make the instrument to be tilted for ease of operation ⑫ CH1 Output Control Turn on/off the output of CH1. The backlight will be lighted when CH1 is tuned on. ⑬ CH1 Output Output signal of CH1 ⑭ CH1/2 button Switch channel displayed on the screen between CH1 and CH2. ⑮ Modulation (Mod) Generate the Modulated waveforms, Sweep and Burst; these functions are only used for CH1.
4.Quick Start ① Power socket AC input connector ② Fuse The rating is 220 - 240 VAC 250 V, F0.5AL ③ USB (type B) connector This can be used to connect a USB type B controller. Connect with an external device, such as connected to a PC and controlled via PC software. ④ Ext Mod In Connector External modulation input, use it as external signal source. ⑤ Ext Trig/Burst/Fsk In connector This signal can be used as external signal source in Sweep, Burst and FSK mode.
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4.Quick Start at the rear panel. To change the voltage scale of the instrument, do the following steps: (1) Turn off the power button at the front panel and remove the power cord. (2) Regulate the Power Switch to the desired voltage scale. Power On (1) Connect the instrument to the AC supply using the supplied power cord. Warning: To avoid electric shock, the instrument must be grounded properly. (2) Press down the power button at the front panel, the screen shows the boot screen.
5.Front Panel Operation 5.
5.Front Panel Operation To set channels To Switch Channels for Display Press CH1/2 button to switch channel displayed on the screen between CH1 and CH2. To Display/Edit Both Channels Press Both button to display the parameters of both channels. To switch channel: Press CH1/2 to switch the editable channel. To select waveform: Press Waveform selection buttons to select waveform of current channel.
5.Front Panel Operation To set signals The following describes how to set and output Sine, Square, Ramp, Pulse, Noise, Arbitrary, DC signals and copy channel. To Output Sine Signals Press button to call the user interface of Sine signal, the Sine waveform parameters can be set by operating the Sine setting menu on the right. The parameters of Sine waveform are: Frequency/Period, Amplitude/High Level, Offset/Low Level. You can operate the menu by using the menu selection buttons on the right.
5.Front Panel Operation Figure 5-3: Set the frequency using number keys To Set the Amplitude Press F2 , confirm whether the "Ampl" menu item is highlighted; if not, press F2 to switch into "Ampl". In Parameter 2, a cursor appears under the value of amplitude. Use the knob or the number keys to set the desired value. To Set the Offset Press F3 , confirm whether the "Offset" menu item is highlighted; if not, press F3 to switch into "Offset". In Parameter 3, a cursor appears under the value of offset.
5.Front Panel Operation the output signal is set to 2.5Vpp amplitude and 1.25V offset. Parameter 1 Frequency Current signal Channel Load Amplitude Offset Setting menu of Square signal Duty cycle Parameter 2 Parameter 3 Figure 5-4: The User Interface of Square Signal Term Explanation Duty Cycle: The percentage that the High Level takes up the whole Period. To Set the Duty Cycle (1) Press F4 button, the "Duty" menu item is highlighted, the current value of the Duty cycle is displayed in Parameter 1.
5.Front Panel Operation To Output Ramp Signals Press button to call the user interface of Ramp signal, the Ramp waveform parameters can be set by operating the Ramp setting menu on the right. The parameters of Ramp waveform are: Frequency/Period, Amplitude/High Level, Offset/Low Level, Symmetry. You can operate the menu by using the menu selection buttons on the right. To set the Frequency/Period, Amplitude/High Level, Offset/Low Level, please refer to To Output Sine Signals on page 12.
5.Front Panel Operation Figure 5-7: Set the symmetry of Ramp signal To Output Pulse Signals Press button to call the user interface of Pulse signal, the Pulse waveform parameters can be set by operating the Pulse setting menu on the right. The parameters of Pulse waveform are: Frequency/Period, Amplitude/High Level, Offset/Low Level, Pulse Width/Duty. You can operate the menu by using the menu selection buttons on the right.
5.Front Panel Operation Term Explanation Pulse Width: There are two kinds of Pulse Width—positive and negative. Positive Pulse Width is the time span between thresholds of 50% of the rising edge amplitude to the next 50% of the falling edge amplitude. Negative Pulse Width is the time span between thresholds of 50% of the falling edge amplitude to the next 50% of the rising edge amplitude. Pulse Width is determined by Period and Duty Cycle; the formula is: Pulse Width = Period * Duty Cycle.
5.Front Panel Operation Noise waveform Current signal Channel Load Amplitude Offset Setting menu of Noise signal Parameter 2 Parameter 3 Figure 5-10: The User Interface of Noise Signal To Output Arbitrary Signals Press button to call the user interface of Arbitrary signal, the Arbitrary waveform parameters can be set by operating the Arbitrary setting menu on the right.
5.Front Panel Operation To Select the Built-in Waveform There are 45 built-in Arbitrary waveforms. Steps for selecting the built-in waveform: (1) Press button, then press F4 to enter the Built-in Wform menu. (2) Press F1 - F4 to select Common, Maths, Window or Others. E.g. select Maths to enter the following interface. (3) Turn the knob or press / direction key to choose the desired waveform. E.g. select ExpRise. Press F1 to output the Exponential Rise waveform.
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5.Front Panel Operation How to Create a New Waveform (1) Enter the operation menu: Press →Editable Wform →Create Wform. (2) Set the number of waveform points: Press F1 to select "Wform Points", turn the knob or press the number keys to input the desired value and choose the unit. X1, XK, XM respectively represent 1, 1000, 1000,000. The waveform points range is 2 1000,000. (3) Set the interpolation: Press F2 to switch between On/Off.
5.Front Panel Operation To Output DC (1) Press CH1/2 to select the channel that you want to output DC. (2) Press (3) Press button, then press F4 F4 to enter the Built-in Wform menu. to select Others. Select DC. Press F1 to output DC. (4) Press F3 , confirm whether the "Offset" menu item is highlighted; if not, press F3 to switch into "Offset". In Parameter 3, a cursor appears under the value of offset. Use the knob or the number keys to set the desired value and choose the unit.
5.Front Panel Operation AM Frequency Current Parameter Load Mod Depth Modulating Waveform Carrier Waveform Mod Type Mod Shape Source Carrier Amplitude Carrier Frequency Figure 5-13: The User Interface of AM How to set the parameters of AM (1) Press Mod function button, then press F1 to select Mod. (2) Press F1 to switch Mod Type to AM. If the Carrier Waveform is not Sine, the system will switch it to Sine automatically.
5.Front Panel Operation Term Explanation AM Frequency: The frequency of modulating waveform. Mod Depth: The Amplitude Range of modulating waveform. In the 0% Modulation, the output amplitude is the half of the set one. In the 100％ Modulation, the output amplitude is the same with the set one. For an external source, the depth of AM is controlled by the voltage level of the signal connected to the Ext Mod In connector in the rear panel. +1V corresponds to the currently set depth 100%.
5.Front Panel Operation (5) Press Arb . F2 to choose Mod Shape, you can choose Sine, Square ,Ramp, Noise or (6) Press F3 only). to set Mod Frequency. The range is 2 mHz - 20 kHz (Internal source (7) Press F4 to set FM Deviation. The Deviation should be less than the Carrier Waveform Frequency. Note: The Sum of the Deviation and the Carrier Frequency must be less than or equal to the sum of upper limit of current carrier frequency and 1kHz.
5.Front Panel Operation page 12. Press button again to return to the Modulation mode interface. (4) Press F5 to select the source. If the source is External, use the Ext Mod In connector in the rear panel to input the external signal, then skip ahead to step (7). If you choose Internal, continue to the steps below. (5) Press Arb . F2 to choose Mod Shape, you can choose Sine, Square ,Ramp, Noise or (6) Press F3 to set PM Frequency. The range is 2 mHz - 20 kHz (Internal source only).
5.Front Panel Operation Frequency generator or the Signal Voltage Level offered by the Ext Trig/Burst/Fsk In connector in the rear panel. The Carrier Waveform can only be Sine. The user interface of the FSK is shown as below. FSK Rate Current Parameter Load Modulating Waveform Carrier Waveform Mod Type Hop Frequency Source Carrier Amplitude Carrier Frequency Figure 5-16: The User Interface of FSK How to set the parameters of FSK (1) Press Mod function button, then press F1 to select Mod.
5.Front Panel Operation Term Explanation FSK Rate: The frequency at which the output frequency shifts between the carrier frequency and the Hop frequency (Internal Modulation only). ASK (Amplitude Shift Keying) Amplitude Shift Keying modulation is a modulation technique that shifts the output signal amplitude between two amplitudes: the carrier amplitude and modulating amplitude.
5.Front Panel Operation amplitude with the specified ASK rate, and then returns to the original amplitude. Term Explanation ASK Rate: The rate at which the output amplitude shifts between the carrier amplitude and the modulating amplitude is called the ASK rate (Internal Modulation only). PSK (Phase Shift Keying) Phase Shift Keying modulation is a modulation technique that shifts the output signal phase between two phases: the carrier phase and modulating phase.
5.Front Panel Operation the Slope is set to Negative. (6) Press F4 to set Phase Deviation. Carrier waveform phase shifts to the modulating phase with the specified PSK rate, and then returns to the original phase. Term Explanation PSK Rate: The rate at which the output phase shifts between the carrier phase and the modulating phase is called the PSK rate (Internal Modulation only). To Generate Sweep Sweep function is only used for CH1.
5.Front Panel Operation (3) Press F1 to set Sweep Time, the Time Span of the Sweep for which the Frequency changes from the Start Frequency to Stop Frequency. (4) Press F2 to select the Sweep Type. Linear means setting the Sweep with linear spacing; Log means setting the Sweep with logarithmic spacing. (5) Use Start Freq and Stop Freq or Center Freq and Freq Span to set the range of the frequency. Press F3 to select Sta_Freq or Cen_Freq, and set the desired value.
5.Front Panel Operation Set the N-Cycle Burst Current Parameter Load Start Phase N Cycle Waveform Source Cycles Figure 5-20: The User Interface of N-Cycle Burst (1) When the output signal is Sine, Square, Ramp, Pulse or Arbitrary waveform, press the Mod button, then press F3 to select Burst. (2) Press , , instance, press , or button to choose the waveform. Take Sine for to display the waveform and parameters. You can change the parameters, please refer to To set signals on page 12.
5.Front Panel Operation Set the Gated Burst Current Parameter Load Start Phase Gated Waveform Source Positive Figure 5-21: The User Interface of Gated Burst (1) When the output signal is Sine, Square, Ramp, Pulse or Arbitrary waveform, press the Mod button, then press (2) Press , , , for instance, press F3 to select Burst. or button to choose the waveforms. Take Sine to display the waveform and parameters. You can change the parameters, please refer to To set signals on page 12.
5.Front Panel Operation level, Up one level, New folder, Delete, Rename, Copy, Paste. (3) Remove the USB device: Remove the USB device from the USB port on the front panel. The system will inform you "The USB device is removed", and the "USBDEVICE" in the storage menu will disappear. To Edit the File Name In file system, the user can edit the name of a file or a folder. When the system needs the user to input a name, an input keyboard will appear.
5.Front Panel Operation To Set the Separator The user can set the separator of the displayed parameter. (1) Press Utility and choose Disp Setup, press (2) Press F2 F2 to select Sep. to switch between Comma, Space, Off. Take the Frequency parameter for instance: Comma Space Off To Set the Screen Saver The screen saver will run automatically if no operation is taken for any key within the set time. Press any button to resume.
5.Front Panel Operation measuring the low frequency signal, and improve the measure accuracy. To measure low frequency signal lower than 1 kHz, you should put on the high frequency restrain to filter the high frequency noise disturb. To measure high frequency signal higher than 1 kHz, you should put off the high frequency restrain. To set the trig level: Press F4 to choose TrigLev.
5.Front Panel Operation To Set the System Language Setting Press Utility and choose System, press to switch display languages. F1 Power On Setting (1) Press Utility and choose System, press F2 to select Power On. (2) Press F2 to switch between Default/Last. Default means that all the settings return to default when powered. Last means that all the settings return to the last one when powered.
5.Front Panel Operation FSK Rate 100 Hz ASK Rate 100 Hz PSK Rate 100 Hz Source Internal Sweep Default Start/Stop Frequency 100 Hz/1 kHz Time 1 sec Mode Linear Burst Default Frequency 1 kHz Count 1 Cycle Period 1 sec Phase 0° Others Default Brightness 100% Separator Comma Screen Saver time 30 minutes Load High Z Phase Deviation 0° Clock Source Internal Channel Output Control Off To Set the Beep (1) Press Utility and choose System, enter the second page of the menu.
5.Front Panel Operation To Set the Clock Source The waveform generator provides an internal clock source and also accepts external clock source input from the [Ref Clk/Counter In] connector at the rear panel. It can also output a clock source from the [Ref Clk Out] connector for other device to use. Note: The amplitude of the [Ref Clk/Counter In] input signal must be over 1 V. (1) Press Utility and choose System, enter the second page of the menu. (2) Press F3 to select CLK Sou.
6.Communication with PC 6. Communication with PC The Waveform Generator supports communications with a PC through USB port. You can use the ultrawave communication software to set the parameters, control the output of the Waveform Generator. The Waveform Generator supports communications with a PC by SCPI commands through USB port. Here is how to connect with PC. Install the ultrawave communication software on the supplied CD.
7.SCPI 7. SCPI The waveform generator supports SCPI, and the users can operate and control the device by USB port. For the detailed information about SCPI, please refer to FG Series Waveform Generator SCPI Protocol. 8. Troubleshooting 1. The instrument is powered on but no Display. Check if the power is connected properly. Check if the Power Switch is in the proper voltage scale.
9.Technical Specifications 9. Technical Specifications All these specifications apply to the Waveform Generator unless otherwise explanation. To reach these specifications, the instrument must have been operating continuously for more than 30 minutes within the specified operating temperature. All the specifications are guaranteed unless those marked with “typical”. Waveforms Standard Waveforms Sine, Square, Ramp, Pulse, Noise Exponential rise, Exponential fall, Sin(x)/x, Staircase, etc.
9.Technical Specifications High Z FG-2602 50 Ω Amplitude Accuracy DC Offset Range (AC+DC) DC Offset Accuracy Output Impedance 1 μHz to 25 MHz 25 MHz to 60 MHz 1 μHz to 25 MHz 25 MHz to 60 MHz 1 mVPP - 20 VPP 1 mVPP - 10 VPP 1 mVPP - 10 VPP 1 mVPP - 5 VPP 1 mVPP or 14 bits ±5 V (50 Ω) ±10 V (High Z) ±(1 % of |setting| + 1 mV + amplitude Vp-p * 0.5%) 50 Ω (typical) Waveform Characteristic Sine Flatness (when the Amplitude is 1.
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9.Technical Specifications Voltage Range and Sensitivity (non-modulation signal) DC offset range ±1.
9.Technical Specifications Display Display Type Display Resolution Display Colors 3.9 inch colored LCD (Liquid Crystal Display) 480 (Horizontal) × 320 (Vertical) Pixels 65536 colors, 16 bits, TFT screen Power Supply Consumption Fuse 220 - 240 VAC, 50/60 Hz, CATⅡ Less than 35 W 250 V, F0.
10.Appendix 10. Appendix Appendix A: Enclosure A power cord that fits the standard of the destination country A USB cable A CD (PC link application software) A Safety hintsheet A BNC/Q9 cable Appendix B: General Care and Cleaning General Care Do not store or leave the instrument where the liquid crystal display will be exposed to direct sunlight for long periods of time. Caution: To avoid any damage to the instrument, do not exposed it to any sprays, liquids, or solvents.
