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Signal Sources

GWInstek has been one of the major signal source suppliers for worldwide users by the advanced-featured products for decades.

A wide product lines including AFG (Arbitrary Function Generators), DDS (Direct Digital Synthesized) Function Generators, Analog Function Generators are well provided. The AFG-3000 Series is designed for industrial, scientific research and educational applications by high sample rate and frequency band. AFG-2000 series is designed to accommodate the educational and basic industrial requirements. SFG-1000 series is a DDS based design for entry level and educational applications. To fit versatile applications, every product line consists of series products by different frequency ranges and/or features to cover the demands. Besides, AM/FM signal generators and Audio Generators are also provided for the specific fields.
Arbitrary Function Generators
AFG-3000 Series Arbitrary Function Generator
  • Wide frequency range from 1uHz to 80/50MHz
  • High 200MSa/s sampling rate
  • 16-bit Amplitude Resolution
  • Output from any section of 1M-point-long waveform
  • 4.3" high-resolution LCD display/on-screen help/Impedance switch
  • Four ways to generate arbitrary waveform: Front Panel Operation
  • CSV file uploading, Direct Waveform Reconstruction (DWR), Arbitrary
  • Waveform Editing PC Software
  • USB, RS-232, GPIB interface support

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AFG-2225 Dual-Channel Arbitrary Function Generator


  • Wide Frequency Ranges From 1μHz to 25MHz (sine/square wave)
  • 1 μHz Resolution in Full Range
  • Built-in Standard 120MSa/s, 10bit, 4k Points Arbitrary Waveform for Both Channels
  • True Dual-Channel Output, CH2 Provides the Same Characteristics as CH1
  • Couple, Tracking, Phase Operations of Dual Channel are Supported
  • 1% ~ 99% Adjustable Duty Cycle for Square Waveform
  • High Resolution and Colored TFT LCD with Friendly User Interface
  • Multiple Editing methods to Edit Arbitrary Waveform Easily
  • Built-in Standard AM/FM/PM/FSK/SUM/Sweep/Burst and Frequency Counter
  • USB Host/Device Interface for Remote Control and Waveform Editing
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AFG-2100 & AFG-2000 Arbitrary Function Generator
  • 0.1Hz to 5/12/25 MHz with in 0.1Hz Resolution
  • Sine, Square, Triangular, Noise and Arbitrary Waveform
  • 20MSa/s Sampling Rate, 10 bit Vertical Resolution and 4k Point Memory for Arbitrary Waveform
  • 1% ~ 99% adjustable duty cycle for Square Waveform
  • Waveform Parameter Setting Through Numeric Keypad Entry & Knob Selection
  • Amplitude, DC Offset and Other Key Setting Information Shown on the 3.5" LCD Screen Simultaneously
  • AM/FM/FSK Modulation, Sweep, and Frequency Counter Functions (AFG-2100 only)
  • USB Device Interface for Remote Control and Waveform Editing
  • PC Arbitrary Waveform Editing Software
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AFG-200 & AFG-100 Arbitrary Function Generator


  • Frequency range: 1uHz~25MHz
  • 1uHz frequency resolution
  • Built-in 120 MSa/s, 10 bit resolution and arbitrary waveform editing function with 4k point memory
  • Dual channel models support coupling, tracking, and phase functions
  • Square waveform can adjust the duty cycle from 1% to 99%.
  • Support various arbitrary waveform editing methods.
  • Built-in AM/FM/PM/FSK/SUM(AFG-225/225P) modulation, sweep and burst functions
  • USB interface signal control
  • AFG-125P/225P provide three DC power selections
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Signal Generators
USG-Series RF Signal Generator
  • Frequency Range: 34.5MHz ~ 4400MHz
  • Output Power Range: -30dBm ~ 0dBm
  • Continuous Wave Signal Without any Modulation
  • Support Fixed Frequency, Frequency Sweep, Frequency Hopping & Power Sweep Mode
  • -107dBc/Hz Phase Noise @100kHz Offset
  • Frequency Resolution: 10kHz
  • PC USB Interface Powered and Controlled
  • External PC Software Support Different Operating System

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DDS Function Generators
SFG-1000 DDS Function Generator
  • DDS Technique and FPGA Chip Design
  • Frequency Range:0.1Hz~3MHz
  • High Frequency Accuracy : � 20ppm
  • High Frequency Stability : � 20ppm
  • Max. Frequency Resolution : 100mHz
  • Low Distortion Sine Wave : -55dBc,0.1Hz~200kHz
  • Voltage Display (Only SFG-1013)
  • Voltage Display (Only SFG-1013)
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Analog Function Generators
GFG-3015 Programmable Function Generator
  • Frequency Range 0.01Hz ~ 15MHz
  • Maximum Frequency Resolution 10mHz
  • Dual Displays Indicate Frequency and Amplitude
  • Built-in 6 Digits Counter up to 150MHz/High Resolution
  • Output Waveform :
  • Sine,Square,Triangle,Ramp, Pulse,Sweep,Gate or Burst
  • INT/EXT AM/FM Modulation
  • GCV Output for Synchronization
  • Output Overload Protection

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GFG-8200A Function Generator
  • Frequency Range: 0.3Hz ~ 3MHz (GFG-8215A/8216A/8217A/8219A)
  • Frequency Range: 0.5Hz ~ 5MHz (GFG-8250A/8255A)
  • Waveforms: Sine, Triangle, Square,Ramp, TTL and CMOS Output
  • External Voltage Controlled Frequency (VCF) Function
  • Two-Steps (-20dBx2) and Variable Attenuator
  • Built-In 6 Digits Counter with INT/EXT Function up to 150MHz(Except GFG-8215A)
  • INT/EXT AM/FM Modulation (GFG-8219A/8255A)
  • GCV Output for Synchronization (GFG-8219A/8255A)

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 Other Signal Sources
GAG-810 & GAG-809 Audio Generator
  • Frequency from 10Hz ~ 1MHz
  • 0.02% Low Sine Wave Distortion (GAG-810 Only)
  • 6 Steps Output Attenuator
  • EXT SYNC Function
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