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GDS-1202B - 200MHz, 2 channels, Digital Storage Oscilloscope

200MHz, 2 channels, Digital Storage Oscilloscope

GW Instek

Category : Digital Oscilloscopes

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Users Manual Programming Manual Datasheet Brochure V1.12 Firmware Download


Realizing Professional Functionalities with an Entry-Level Pricing

The GDS-1000B Series features four bandwidth selections - 200MHz, 100 MHz, 70 MHz, 50MHz and equips with analog signal input terminals by four or two channels. The maximum sampling rate for every single channel is 1GSa/s, and the memory depth is 10Mpts per channel independently. The GDS-1000B Series has a waveform update rate of 50,000wfms/s, which helps users to precisely observe the detailed waveform variation. Additionally, 7” WVGA color LCD and the 256 color gradient display function together allow waveforms to be observed with the senses of transparency and gradation.

Concerning the horizontal time scale adjustment knob and trigger level adjustment knob, GW Instek provides a very thoughtful design -the zero key function, which allows engineers to work more effectively. For mathematical analysis mode, 1Mpts FFT signal display makes the dull frequency domain signal analysis more delicate.

Moreover, the innovative exterior design and compact design also bring much convenience to users. Another diversified and charming multi-functional operation demonstrates the concept of complete technology integration.

  • 50/70/100MHz bandwidth selections, 2ch or 4ch input
  • 1GSa/s maximum sampling rate
  • 10M maximum memory depth for each channel
  • 7” 800 x 480 WVGA LCD display
  • 256 color gradient display function to strengthen waveform performance
  • 1Mpts FFT frequency domain signal display
  • Zero Key function for horizontal time, vertical voltage and triggering
  • Compact and innovative exterior design

General Specifications

Bandwidth (-3dB) DC coupling: DC ~ 200MHz
Channels 2
Rise 1.75ns
Bandwidth Limit 20MHz


Resolution 8 bit : 1mV~10V/div
Input Coupling AC, DC, GND
Input Impedance 1M&ohms;/ 16pF approx
DC Gain Accuracy ±3%
Polarity Normal & Invert
Maximum Input Voltage 300Vpk, CATI (300Vpk CATII with GTP-070A-4, GTP-100A-4 10:1 probe
Offset Position Range 1mV/div ~ 20mV/div: ±0.5V
50mV/div ~ 200mV/div: ±5V
500mV/div ~ 2V/div: ±25V
5V/div ~ 10V/div: ±250V
Waveform Signal Process +, -, ×, ÷, FFT, FFTrms, User defined expression
  FFT: Spectral magnitude. Set FFT Vertical Scale to Linear RMS or dBV RMS, and FFT Window to Rectangular, Hamming, Hanning, or Blackman-Harris


Source CH1, CH2, CH3*, CH4*, Line, EXT**
*4 channel models only.
**2 channel models only.
Trigger Mode Auto (supports Roll Mode for 100 ms/div and slower), Normal, Single
Trigger Type Edge, Pulse Width, Video, Pulse Runt, Rise & Fall, Timeout, Alternate, Event-Delay (1~65535 events), Time-Delay (Duration: 4nS~10S), Bus
Holdoff range 4ns to 10s
Coupling AC, DC, LF rej., Hf rej., Noise rej.
Sensitivity 1 div

External Trigger

Range ±15V
Sensitivity DC ~ 100MHz Approx. 100mV
Input Impedance 1M&ohms;±3% ~ 16pF


Timebase Range 1ns/div ~ 100s/div (1-2-5 increments)
ROLL: 100ms/div ~ 100s/div
Pre-trigger 10 div maximum
Post-trigger 2,000,000 div maximum
Timebase Accuracy ±50 ppm over any ≥ 1ms time interval
Real Time Sample Rate 1GSa/s, max.
Record Length Maximum 10Mpts
Acquisition Mode Normal, Average, Peak Detect, Single
Peak Detection 2ns (typical)
Average Selectable from 2 to 256

X-Y Mode

X-Axis Input Channel 1; Channel 3*
*4 channel models only.
Y-Axis Input Channel 2; Channel 4*
*4 channel models only.
Phase Shift ±3° at 100kHz

Cursors and Measurement

Cursors Amplitude, Time, Gating available; Unit: seconds(s), Hz(1/s), Phase(degree), Ration(%)
Automatic Measurement 36 sets: Pk-Pk, Max, Min, Amplitude, High, Low, Mean, Cycle Mean, RMS, Cycle RMS, Area, Cycle Area, ROVShoot, FOVShoot, RPREShoot, FPREShoot, Frequency, Period, RiseTime, FallTime, +Width, -Width, Duty Cycle, +Pulses, -Pulses, +Edges, -Edges, FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF, Phase
Cursors measurement Voltage difference between cursors ( ΔV) Time difference between cursors ( ΔT)
Auto counter 6 digits, range from 2Hz minimum to the rated bandwidth

Control Panel Function

Autoset Single-button, automatic setup of all channels for vertical, horizontal and trigger systems, with undo Autoset
Save Setup 20set
Save Waveform 24set


TFT LCD Type 7" TFT WVGA color display
Display Resolution 800 horizontal × 480 vertical pixels (WVGA)
Interpolation Sin(x)/x
Waveform Display Dots, vectors, variable persistence (16ms~4s), infinite persistence
Waveform Update Rate 50,000 waveforms per second, maximum
Display Graticule 8 x 10 divisions
Display Mode YT, XT


USB Port USB 2.0 High-speed host port X1, USB High-speed 2.0 device port X1
Ethernet Port RJ-45 connector, 10/100Mbps with HP Auto-MDIX. (Only for the GDS-1074B, GDS-1104B)
Go-NoGo BNC 5V Max/10mA TTL open collector output
Kensington Style Lock Rear-panel security slot connects to standard Kensington-style lock


Multi-language menu Available
Operation Environment Temperature: 0°C to 50°C Relative Humidity: ≤ 80% at 40°C or below; ≤ 45% at 41°C ~ 50°C
On-line help Available
Dimensions 384mm x 208mm x 127.3mm
Weight 2.8kg

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