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GFG-8217A - 3 GHz Function Generator

3 GHz Function Generator

GW Instek

Category : Function Generators

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The GFG-8200A product family offers a complete solution in generating signals at the 3MHz/5MHz ranges. All models are embedded with standard functions such as TTL/CMOS/Ramp output, External Voltage Controlled Frequency (VCF), and built-in 6-digit counter (except for GFG-8215A).

Further versatility of Logarithmic and Linear sweep is added into GFG-8255A/8219A/8217A, while GCV output feature and AM/FM modulation are available in GFG-8255A/8219A. All these integrated functions and user-friendly operations of the GFG-8200A series are made to accommodate the applications in audio response testing, vibration testing, servo system evaluation, ultra sound application, etc.

  •  Frequency Range: 0.3Hz ~ 3MHz 
  • Waveforms: Sine, Triangle, Square,Ramp, TTL and CMOS Output
  • External Voltage Controlled Frequency (VCF) Function
  • Two-Steps (-20dBx2) and Variable Attenuator 
Frequency Range 0.5Hz to 5 MHz (7 ranges)
Amplitude >10Vp-p (into 50Ω load)
Impedance 50Ω +10%
Attenuator -20dB+1dB x 2
DC Offset <-5V ~ >5V (into 50Ω load)
Duty Control 80% : 20% : 80% to  1MHz Continue variable
Display 6 digit LED display

Sine Wave

Distortion <1%, 0.5Hz ~ 100kHz
Flatness <0.3dB, below 500kHz; <1dB, below 5MHz

Triangle Wave

Linear >98%, 0.5Hz ~ 100kHz; >95%, 100kHz ~ 5MHz

Square Wave

Symmetry +2%, 1Hz ~ 100kHz
Rise or Fall Time < 50nS at maximum output (into 50Ω load)

CMOS Output

Level 4Vpp+1Vpp ~ 14.5Vpp+0.5Vpp adjustable
Rise or Fall Time <120nS

TTL Output

Level >3Vpp
Fan Out 20 TTL load
Rise/Fall Time <25nS


Input Voltage 0V~10V ±1V(100 : 1)
Input Impedance 10kΩ ±10%


Output Voltage To set the voltage between 0V ~ 2V as per different frequency

Sweep Operation

Sweep/Manual Switch selector
Sweep/Rate 100 : 1 ratio max. and adjustable
Sweep/Time 0.5sec. ~ 30sec. adjustable
Sweep/Mode Lin./Log. switch selector

Amplitude Modulation

Depth 0 ~ 100%
MOD. Frequency 400Hz (INT), DC ~ 1MHz(EXT)
Carrier BW 100Hz ~ 5MHz (-3dB)
EXT Sensitivity <10Vpp for 100% modulation

Frequency Modulation

Deviation 0 ~ + 5%
MOD. Frequency 400Hz(INT), DC ~ 20kHz(EXT.)
EXT. Sensitivity <10Vpp for 10% modulation

Frequency Counter

INT./EXT. Switch selector
Range 0.5Hz ~ 5MHz (5Hz ~ 150MHz EXT.)
Accuracy Timebase accuracy ±1 Count
Timebase ±20ppm (23°C±5°C) after 30 minutes warm up
Resolution The maximum resolution is 100nHz for 1Hz and 1Hz for 100MHz
Input Impedance 1MΩ//150pF
Sensitivity <35mVrms (5Hz ~ 100MHz);< 45mVrms (100MHz ~ 150MHz)


Power Source AC 115V/230V±15%, 50/60Hz
Accessories Power cord × 1, 
Instruction manual × 1, 
GTL-101 × 2
Dimensions & Weight 251(W) × 91(H) × 291(D) mm, Approx. 2.4kg

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