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GW Instek GDS-1102A-U - 100MHz, 2 Channel, Digital Storage Oscilloscope

100MHz, 2 Channel, Digital Storage Oscilloscope

GW Instek

Category : Oscilloscopes

$399 (USD) Add to Cart

Datasheet V1.14 Firmware Download

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The GDS-1102A-U series provide a unique solution. Operating at 100 MHz with a real-time sampling rate of 1GSa/s, the GDS-1102A-U employs MemoryPrime technology . Using MemoryPrime technology, the GDS-1102A-U is able to overcome the problems associated with memory constraints. High sample rates, rarely found in traditional DSOs, can be maintained over longer periods of time, without affecting performance.

Coupled with the high resolution 5.7” color TFT display,  with user-friendly interface USB device and host port  make the GDS-1102A-U feature-rich. Furthermore, the GDS-1102A-U provide a lifetime warranty program!

PictBridge Printer Supported

PictBridge Printer SupportedThe GDS-1000A-U is one of the few DSOs currently on the market that can provide complete remote control or data capture over USB interface. The GDS-1000A-U Series also supports PictBridge, allowing you to print directly to your printer without complex configuration. After connecting to a PictBridge compatible printer with a USB cable, printing is as easy as pressing a button.


Fast Horizontal Position Mark and Search

Fast Horizontal Position Mark and SearchMemoryPrime technology allows a maximum of 2M points of waveform data. For engineers, analyzing a considerable amount of data can be an extremely challenging task. To assist engineers to analyze waveforms quicker, we provide Horizontal Page Skip and Set Time Mark functionalities, letting engineers take full advantage of the 2M memory depth.

Auto Measurement Gating

Auto Measurement Gating A built-in Autoset function on a digital oscilloscope gives engineers remarkable convenience. With the complexities of product features, traditional auto measurement information is inadequate for modern measurement needs. The new Cursor Gating feature allows you to mark an area with cursors for auto measurement. 

Flexible Probe Factor Setting

Flexible Probe Factor SettingThere is a diverse range of test probes currently on the market such as passive, differential, and electrical probes. The attenuation ratio of each probe type also differs greatly. To ensure compatibility, probe attenuation ratios of 0.1X to 2000X as well as voltage and current probes are supported by the GDS-1000A-U.


About MemoryPrime Technology

PictBridge Printer Supported

What is the single feature lacking from most digital storage oscilloscopes? Adequate memory depth. Is the memory depth of your DSO large enough?

With 2M points of memory, the GDS-1000A-U has the capability to acquire far more waveform data compared to other DSOs in the same performance range.

The 1GSa/s sampling rate and 2M point memory play an extremely powerful role for single-shot waveform capture. Properly set the trigger conditions to babysit the expected waveform. When the single-shot waveform is triggered and captured, you are able to check and see the single-shot event without losing any detailed information. A DSO with high sampling rate but a short memory can't do the job of single-shot waveform capture as well as the GDS-1000A-U.


Easy to use

Full-featured acquisition mode and 27 auto measurement functions help users to measure the parameters of captured waveforms accurately. The advanced Auto-Set function enables GDS-1000A-U Series to catch waveform automatically and display waveform quickly. With Arithmetic functions, +, -, x ,FFT ,FFTrms and Zoom FFT. GDS-1000A-U Series keep users aware of the measurement results by updating values immediately. Without almost extra calculation, GDS-1000A-U can provide sufficient information testing.

Observation-Delay ON/ OFF


For the convenience of waveform observation and analysis, the GDS-1000A-U includes Delay On/Off functions usually available only in the higher end products. With Delay On, a signal can be observed from an offset of the trigger point. This feature allows the horizontal scale and the waveform scale to be expanded and centered on the delay point rather than the trigger point, allowing a signal to be observed in detail where needed.

Observation-Expand by Ground/Center

In a DSO, "AC Coupling" is normally used to isolate the AC components of a signal by blocking the DC components. This is useful to see a signal with a small AC component that is offset with a large DC voltage. With AC coupling to block the DC voltage, small AC waveforms can be observed from the center of the screen for measurement or examination. However, capacitive loading under AC coupling mode may cause waveform distortion as low-frequency components become degraded, an effect that needs to be avoided in frequency critical applications. The Expand by Ground and Center functions are convenient tools to expand a waveform vertically. With this feature, the vertical scale of a waveform can be expanded either from the ground reference or from the center of the screen without causing capacitive loading.

FFT / FFTrms and Zoom FFT measurement

The FFT math function on a digital storage oscilloscope is often used to observe the fundamental and harmonic components of a signal. Typically the traditional unit of the FFT is a decibel (dB).
However in the use of dB, it is difficult to identify the fundamental frequency of a signal from a noisy spectrum sometimes. With the FFTrms function, the GDS-1000A-U series can clearly display the fundamental frequency of an acquired waveform.

With the FFTrms function ,the GDS-1000-A-U series can clearly display the fundamental frequency of an acquired waveform.Zoom FFT provides users with observation flexibility that they can move FFT waveform horizontally and zoom it up to 20X to investigate details of FFT signal. 

PC Remote Control Software

Using a USB port coupled with FreeWave remote monitoring software is the easiest and most convenient way to capture data from the GDS-1000A-U. With FreeWave, a screenshot can be saved as an image file (.bmp/.jpg), waveform data(.csv) can be logged, and movie files(.wmv) can be recorded in real-time. Not only can FreeWave monitor and record waveforms over a long period of time, but previously recorded waveforms can also be observed. Instrument settings can even be configured without the need to learn incomprehensible command line syntax. With the simple user interface and robust features, FreeWave allows you to get the most out of the GDS-1000A-U with little effort.


PictBridge Printer Supported

USB Host & Data Logger USB Host & Data Logger

USB host function enables user to store waveform setting ,data or image on USB flash disk. Furthermore , the afterward data logger can continue monitoring input signals and storing their waveform data in USB flash disk when trigger conditions are met ,saving users' effort to tracking signals manually and allowing them to analyze and observe wave afterward.

GO/NOGO Function

Go/NoGo testing function check whether the incoming signal violates the user-defined template.Users can easily define this template by setting the tolerance ratio to determine violation conditions.Go/NoGo testing can either keep counting violation number or stop testing when violation conditions are met.



GUARANTEED PROTECTIONBy providing the Global Lifetime Warranty Program for the GDS-1000A digital storage oscilloscope series, we believe you can have the same confidence as we do in the quality of each GDS-1000A-U DSO. By purchasing a GDS-1000A-U you can be assured of a highly economical, low maintenance, quality DSO backed with the protection of the LifeTime Warranty program. The Lifetime Warranty Program guarantees customers will be supported regardless of their location. Customers will receive at least 5 years of full support even after production has ceased. For more details and applicable conditions regarding the LifeTime Service program, please visit the GW Instek website or consult your nearest distributor.

  • 100MHz Bandwidths
  • 1GSa/s Real-Time Sample Rates Maximum, 25GSa/s Equivalent-Time
  • 2Mega Points Record Length
  • 2mV~10V Vertical Scale
  • 1ns~50s Horizontal Range
  • Up to 27 Automatic Measurements
  • 5.7 TFT LCD Display
  • USB Host and Device Interface Supported
  • Go/NoGo Function
  • Data Logger
  • Limited Lifetime Warranty


Channels 2
Bandwidth DC~100MHz(-3dB)
Rise Time <3.5ns Approx.
Sensitivity 2mV/div ~ 10V/div (1-2-5 increments)
Accuracy ±(3% x |Readout| + 0.1 div + 1mV)
Input Coupling AC, DC & Ground
Input Impedance 1MΩ±2%, ~15pF
Polarity Normal & Invert
Maximum Input 300V (DC+AC peak), CATII
Waveform Signal Process + , - , x, FFT, FFTrms ,Zoom FFT
Offset Range 2mV/div ~ 50mV/div: ±0.4V 
100mV/div ~ 500mV/div: ±4V 
1V/div ~ 5V/div: ±40V 
10V/div: ±300V
Bandwidth Limit 20MHz (-3dB)


Sources CH1 , CH2 , Line , EXT
Modes Auto, Normal, Single, TV, Edge, Pulse Width
Coupling AC , DC , LF rej. , HF rej. , Noise rej.
Sensitivity DC ~ 25MHz: Approx. 0.5div or 5mV; 
25MHz ~ 70/100/150MHz: Approx. 1.5div or 15mV

Ext. Trigger

Range ±15V
Sensitivity DC ~ 25MHz : ~ 50mV ; 25M ~ 70/100/150MHz : ~15mV
Input Impedance 1MΩ±2% , ~ 15pF
Maximum Input 300V (DC AC peak) , CATII


Range 1ns/div ~ 50s/div (1-2.5-5 increments); ROLL : 50ms/div ~ 50s/div
Modes Main, Window, Window Zoom, Roll, X-Y
Accuracy ±0.01%
Pre-Trigger 10 div maximum
Post-Trigger 1000 div

X-Y Mode

X-Axis Input Channel 1
Y-Axis Input Channel 2
Phase Shift ±3°at 100kHz

Signal Acquisition

Real-Time Sample Rate 1GSa/s maximum
Equivalent Sample Rate 25GSa/s maximum
Vertical Resolution 8 Bits
2 Mega Points maximum
Acquisition Mode Normal, Peak Detect, Average
Peak Detection 10ns (500ns/div ~ 10s/div)
Average 2 , 4 , 8 , 16 , 32 , 64 , 128 , 256

Cursors and Measurements

Voltage Measurement Vpp ,Vamp ,Vavg ,Vrms ,Vhi ,Vlo ,Vmax ,Vmin ,Rise Preshoot/Overshoot ,Fall Preshoot/Overshoot
Time Measurement Freq ,Period ,Rise Time ,Fall Time ,Positive Width ,Negative Width ,Duty Cycle
Cursors Measurement Voltage difference between cursors (V) 
Time difference between cursors (T)
Auto Counter Resolution : 6 digits
Accuracy: 2%
Signal Source: All available trigger source except the Video trigger mode

Cursors and Measurements

Frequency Range 1kHz ~ 100kHz, 1kHz/STEP
Duty Cycle Range 5% ~ 95%, 5%/STEP

Control Panel Functions

Autoset Adjust Vertical VOLT/DIV, Horizontal TIME/DIV, and Trigger level automatically
Save Setup Up to 15 sets of measurement conditions
Save Waveform 15 sets of waveform


TFT LCD Type 5.7 inch
Display Resolution 234(Vertically) x 320(Horizontally) Dots
Display Graticule 8 x 10 divisions
Display Brightness Adjustable


USB Device USB1.1 & 2.0 full speed compatible (Pictbridge Compatibility Printers Supported)
USB Host Image (BMP), waveform data (CSV), and setup (SET)

Power Source

Line Voltage Range AC 100V ~ 240V , 48Hz ~ 63Hz , Auto selection


Multi-Language Menu Available
Onscreen Help Available

Dimensions & Weight

Dimensions 310(W) x 142 (H) x 140(D)mm
Weight Approx. 2.5kg

Do you have a 100MHz, 2 Channel, Digital Storage Oscilloscope that needs to be calibrated?

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Get your 100MHz, 2 Channel, Digital Storage Oscilloscope calibrated today! Click Here!