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GAOTek Digital Fluorescence Oscilloscope (Bandwidth 500 MHz/4 Ch /Sampling Rate 5 GSa/s)


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GAOTek Digital Fluorescence Oscilloscope (Bandwidth 500 MHz/4 Ch /Sampling Rate 5 GSa/s) integrates digital oscilloscope, bus analyzer and digital voltmeter and comes with 4 channels, a bandwidth of 500 MHz, and a high sampling rate of 5 GSa/s. It has many functions including automatic waveform setup, automatic measurement of waveform parameter, marker measurement, histogram measurement, arithmetic operation and advanced mathematics, FFT analysis, serial-bus triggering and analysis, limit and template test, power measurement and analysis and so on, to support Ethernet remote control. The device also has 70 million frames/second waveform capture rate and 200 Mpts/Channel deep storage. Integrated development and application are easy and convenient.


  • 70 million frames/second waveform capture rate, fast identification and capture of accidental events
  • 5 GSa/s sampling rate and 200 Mpts/Channel deep storage, burr and contingency capture rate can be greatly improved
  • 256-grade gray scale, four types of waveform palettes for display and digital phosphor three-dimensional display technique, give extraordinary visual experience
  • Multiple triggering functions, precise digital triggering locks up triggered events accurately
  • Strong calculation and analysis tools enable deep data digging and analysis
  • Hardware triggering and analysis of serial bus: a test solution of serial bus
  • Brand-new 10.4 in capacitance touch screen, user-friendly design gives you excellent experience
  • Over 20 types of built-in training signal output help educators equip and upgrade labs
  • Standard 5U racket, multiple peripheral interfaces, convenient for device characterization

Technical Specifications

Vertical System
Channel Number 4
Bandwidth 500 MHz Note: ≥ 5 mV/div
Rise Time <700 ps
Bandwidth Limit 20 MHz, 250 MHz
Input Impedance 1 MΩ±1 %, 50 Ω±1 %
Input Coupling DC, AC
Range of Vertical Sensitivity 1 MΩ: 1 mV/div~10 V/div
50 Ω: 1 mV/div~1 V/div
DC Gain Accuracy ±1.5 % Note: ≥ 5 mV/div
Max. Input Voltage 1 MΩ: 300 Vrms CATII
50 Ω: 5 Vrms
Vertical Resolution 8 digits
Offset Range 1 mV/div~100 mV/div ±1 V
200 mV/div~1 V/div ±10 V
2 V/div~10 V/div ±100 V
Channel Isolation ≥40 dB
Horizontal System
Sampling Rate 5 GSa/s (Single, double), 2.5 GSa/s (three, four)
Storage Depth 200 Mpts/CH
Collection Mode Normal: collection and sampling value
Peak: min. sampling burr is 200 ps
Highest resolution: 11 digits resolution, can reduce noise
Envelope: min. and max. envelopes indicate peak value after many times of collection
Average: contains 2-512 waveforms
Rolling: rolling waveform from right to left, time-base: 100 ms/div~1000 s/div
Time Span of Highest Sampling Rate 40 ms
Time-Base Range 1 ns/div~1000 s/div
Time-Base Precision ±5 ppm
Range of Time-Base -10 measure to 5000 s
Range of Channel Delay Adjustment ±150 ns, resolution: 400 ps
Triggering System
Triggering Source CH1, CH2, CH3, CH4, exterior
Triggering Mode Auto, normal, single time
Range of Triggering Suppression Release 16 ns to 8 s
Range of Triggering Level Interior (CH1~CH4): ± 4 measure
Exterior: ±0.4 V, exterior/10: ± 4 V
Triggering Sensitivity Interior (CH1~CH4): users can adjust step by 0.1 measure
Exterior: 50 mV, exterior /10: 500 mV
Triggering Type Edge: trigger at rise edge or fall edge in any channel or auxiliary input
Sequence: prepare at a chosen edge, trigger at a chosen time or other chosen edge of the event
Runt: trigger when a pulse crosses one threshold but fails in crossing a second threshold before it crosses the first threshold again
Pulse width: trigger at >, <, = or ≠ positive pulse or negative pulse width of certain time period, pulse width range: 0.8 ns~10 s, resolution: 0.8 ns
Logic: trigger when any logic code type in the channel turns false or the code remains true at a certain time. Any input can be taken as a clock, look for code type at clock edge. Appointed code (AND, OR, NAND, NOR) types for four input channels are defined as high, low or irrelevant
Establishment and maintenance:  trigger when establishment or maintenance time between clock and data has violation
Rise time: trigger when pulse edge rate is faster or lower than the appointed value
Video: trigger in all rows, odd fields, even fields of NTSC, PAL and SECAM video signals
HD video (Option GAO-DSO-101B-02): 480p/60, 576p/50, 720p/50, 720p/60, 1080i/50, 1080i/60, 1080p/24, 1080p/25
I2C (Option GAO-DSO-101C-03): start at I2C bus within 10Mbps, trigger at repeated start up, stop, ACK lost, address, data, address and data
RS232 (Option GAO-DSO-101D-04): trigger at sending start bit, receiving start bit, end of packet sending, end of packet receiving, sending data, receiving data, sending odd and even errors and receiving odd and event data within 2Mbps
SPI (Option GAO-DSO-101E-05): trigger at frame startup, MOSI, MISO, MOSI and MISO in SPI bus within 10 Mbps
CAN (Option GAO-DSO-101F-06): trigger at frame startup, frame type, identifier, data, identifier and data, end of frame, ACK lost, bit stuff error of CAN signals within 1 Mbps
LIN (Option GAO-DSO-101G-07): trigger at synchronization of LIN signal, identifier, data, identifier and data, wakeup frame, sleep frame and error within 100 kbps
FlexRay (Option GAO-DSO-101H-08): trigger at frame header, frame type, identifier, cycle number, head field, data, identifier and data, end of frame and error within 10 Mbps
Audio (Option GAO-DSO-101I-09): trigger at word selection, frame synchronization or data. Data can be further appointed, trigger when the data is further appointed and when it is ≤, <, =, >, ≥ or ≠ certain special data, or it stays within some range or beyond the range
USB (GAO-DSO-101J-10): trigger at synchronous activation, frame start up, reset, hang-up, recovery, end of packet, token packet, data packet, handshake packet, special packet and error. Low speed is 1.5 Mbps and whole speed is 12 Mbps
Bus Analysis
Decode Channel 1 each
Display Format Binary, hexadecimal system
Display Type Bus view, digital view, event list with time scale information.
I2C (Option GAO-DSO-101C-03) Signal rate: ≤10 Mbps

Protocol type: 7 digits/10 digits address

RS232 (Option GAO-DSO-101D-04) Signal rate: 50 bps~2 Mbps
SPI (Option GAO-DSO-101E-05) Signal rate: ≤10 Mbps
CAN (Option GAO-DSO-101F-06) Signal rate: 10 kbps~1 Mbps
LIN (Option GAO-DSO-101G-07) Signal rate: 800 bps~100 kbps

Protocol standard: 1.x, 2.x

FlexRay (Option GAO-DSO-101H-08) Signal rate: 2.5 Mbps, 5 Mbps, 10 Mbps
Audio (Option GAO-DSO-101I-09) Signal rate: ≤10 Mbps

Protocol type: I2S, LJ, RJ, TDM

USB (Option GAO-DSO-101J-10) Signal rate: low speed 1.5 Mbps, full speed 12 Mbps
Auto Measurement 29 kinds, 8 can be showed in the screen at any time. Measurement includes: cycle, frequency, delay, rise time, fall time, positive mark-space ratio, and negative mark-space ratio. Positive pulse width, negative pulse width, burst width, phase, positive overshoot, negative overshoot, peak-to-peak value, amplitude, high value, low value, average value, cycle average, RMS, cycle RMS, positive pulse number, negative pulse number, rise edge number, area, cycle area
Measurement and Analysis System
Marker Waveform and screen
Measurement Statistics Average value, min. value, max. value, standard offset
Reference Level Users can define reference level of auto measurement by percentage or unit
Gating Isolate certain event and measure, use screen or waveform marker
Waveform Histogram Waveform histogram provides a data, indicates total hits in user defined range showed in the screen
Signal source: CH1~CH4, REF1~REF4, math
Type: vertical, horizontal
Measurement type: 12 kinds, including waveform number, in-frame hits, peak hits, intermediate value, max. value, min. value, peak-to-peak value, average value, standard offset, Sigma1, Sigma2, Sigma3
Waveform Mathematics Arithmetic: add, deduct, multiply, divide
Mathematical function: differential, integration, FFT
FFT: set vertical scale as linear RMS or db VRMS, set Window as rectangular, Hamming, Hanning, Blackman-Harris
Advanced mathematics: define a large number of algebraic expression: including waveform, reference waveform, mathematical function, scalar. Variable and reference measurement results can be adjusted by two users at most
Limit and Template Test (Option GAO-DSO-101A-01) Including standard template: ITU-T, ANSI T1.102, USB
Template test source: CH1~CH4
Template creation: vertical tolerance of limit test is 0~1 measure; horizontal tolerance of limit test is 0~500 milli-measure; can load standard template or tailored template
Template proportion: lockup to source unlock, lockup to source close
Test running time: min. waveform quantity (1~1000000; infinity)
Violation threshold: 1~1000000
Operation when test fails: stop collection, save the screen graph and the waveform in the file, trigger to output pulse
Operation when test accomplishes: trigger to output pulse
Result display: Test status, violation quantity, total number of waveforms, violation ratio, total number of tests, failure number of test, test failure ratio, time-taken, hit number in each template segment
Display System
Display Type 10.4 in color LCD
Display Resolution 1024×768 p
Scale Complete, grid, crosshair, frame
Touch Screen Capacitive touch screen, supports waveform and menu operation
Waveform Type Point, vector, afterglow
Display Type YT, XY
Fastest Waveform Capturing Rate 70 M frames/s
Grey Grade 256 grade
Waveform Color Normal, reverse, color temperature and spectrum
Input and Output Ports
USB Main Control 2 each for front and rear panel
USB Equipment 1 each on the rear panel
Ethernet RJ-45 connector, 10/100/1000 Mbps, supports network remote control
Video Output Port DB-15 plug-and-jack type connector, used to connect the oscilloscope to the external monitor
Auxiliary Input Rear panel BNC, 1 MΩ input impedance; max. input: 300 Vrms CATII
Auxiliary Output Rear panel BNC, used for triggering pulse signal output, event output of limit template test, or built-in training signal output
Reference Input/output Rear panel BNC, time base systems is used for input or output of reference clock, frequency is 10 MHz
Sensor Compensator Output Stitch on the front panel, frequency is 1 kHz amplitude is approx. 3.3 V
Structure Type Portable
Power 100 V~240 V AC, 50 Hz~60 Hz

Maximum power consumption: 120 W

Working Temperature 32 °F~122 °F (0 °C~50 °C)
Dimensions (W × H × D) 16.77 in × 8.72 in × 6.29 in (426 mm × 221.5 mm × 160 mm)
Weight 13.22 lbs (6 kg)

Additional Information

Ordering Information


Option Table 1

Option No. Name Function Remarks
1 Voltage Sensor Bandwidth: DC~250 MHz

Attenuation: 100:1 Max. voltage: 3000 V Length: 78.74 in (200 cm)

2 Voltage Sensor Bandwidth: DC~100 MHz

Attenuation: 100:1 Max. voltage: 1500 V Length: 51.18 in (130 cm)

3 High voltage difference sensor Bandwidth: DC~50 MHz

Attenuation: 50:1, 500:1

Precision: ±2%

Max. voltage: 1300 V (DC+ACpk)

Supply: 9 V DC

4 High voltage difference sensor Bandwidth: DC~100 MHz

Attenuation: 50:1, 500:1

Precision: ±2%

Max. voltage: 1300 V (DC+ACpk)

Supply: 9 V DC

5 Current sensor Bandwidth: DC~100 kHz

Measurement range: 50 mA~100 A peak Range: 10 mV/A, 100mV/A

Supply: 9 V alkaline batteries

6 Current sensor Bandwidth: DC~25 MHz

Precision: ±3%

Max. current: 20 A (DC+ACpk)

Range: 100 mV/A Supply: 9 V DC

7 Racket installation set Framework installation set  
8 Aluminium transportation case Aluminium transportation case  
9 English interface option English tag, English rubber button  

Option Table 2

Option No. Name Function
GAO-DSO-101A-01 Limit template test module Support ITU-T, ANSI T1.102, USB and other standard templates or user creation
GAO-DSO-101B-02 HD video touch module Support 480p, 576p, 720p, 1080p, 1080i and other formats
GAO-DSO-101C-03 I2C triggering and analysis module Signal rate: ≤10 Mbps

Protocol type: 7 digits/10 digits address

Signal type: single end

GAO-DSO-101D-04 RS232 triggering and analysis module Signal rate: 50~2 Mbps

Signal type: single end

GAO-DSO-101E-05 SPI triggering and analysis module Signal rate: ≤10 Mbps

Signal type: single end

GAO-DSO-101F-06 CAN triggering and analysis module Signal rate: 10 kbps~1 Mbps

Signal type: single end, difference CAN_L, CAN_H

GAO-DSO-101G-07 LIN triggering and analysis module Signal rate: 800 bps~100 kbps Protocol standard: 1.X, 2.X

Signal type: single end

GAO-DSO-101H-08 FlexRay triggering and analysis module Signal rate: 2.5 Mbps, 5 Mbps, 10 Mbps

Signal type: BP, BM, TX/RX

GAO-DSO-101I-09 Audio triggering and analysis module Signal rate: ≤10 Mbps

Protocol standard: I2S, LJ, RJ, TDM

Signal type: single end

GAO-DSO-101J-10 USB triggering and analysis module Signal rate: 1.5 Mbps, 12 Mbps Signal type: single end, difference

Standard Accessories

No. Name Remarks
1 High-impedance sensor 4 each, DC~500 MHz bandwidth, 10:1 attenuation, 10 MΩ input impedance, 300 V CATII max. voltage
2 Power cord 1 piece, standard tri-core power cord
3 User manual 1
4 Programming manual 2 each
5 Certificate 1 each

Main Characteristics

GAOTek Digital Fluorescence Oscilloscope has a capture rate of 70 million frames /sec waveform, fast identification and capture of accidental events. 5 GSa/s sampling rate and 200 Mpts/Channel deep storage, burr and contingency capture rate can be greatly improved. Users can review more waveform details in a longer collection period.

GAOTek Digital Fluorescence Oscilloscope has a 256-grade gray scale and four types of waveform palettes for display which give you an extraordinary visual experience. GAO-DSO-101 oscilloscope implements digital phosphor three-dimensional display technique, to give the probability of event occurrence through lightness of color (256-grade gray scale) or temperature change (color grade), and to provide 4 types of waveform palettes including normal, reverse, color temperature and spectrum, which enhances the capability of contingency view for superior visual experience.

GAOTek Digital Fluorescence Oscilloscope supplies users with rich triggering functions, including edge, pulse width, video, runt pulse, logic, sequence, establishment of maintenance time, rise and fall time, HD digital video, serial bus triggering, which help users locate events in which they have interest out of complicated sampling information.

GAOTek Digital Fluorescence Oscilloscope uses the technique of precise digital triggering to perform triggering point determination against ADC samples collected, to restrain impact of interference signals, and to locate triggering events fast, to lay the foundation for accurate display and signal analysis of oscilloscope. Triggering jitter of the digital triggering is as low as ±1 ps, highest triggering sensitivity reaches 0.1 measure, narrowest pulse test width is 200 ps, and channel delay calibration step is 400 ps.

Advantages of digital triggering:

  • More precise triggering
  • More flexible triggering
  • Higher triggering sensitivity
  • Lower triggering jitter
  • Narrower pulse test width
  • More precise channel delay calibration

GAOTek Digital Fluorescence Oscilloscope provides a complete set of analysis tools for users, including markers based on waveform and screen, 29 kinds of parameter automatic measurements, mathematical operation, FFT analysis, advanced mathematics, waveform histogram, statistics, limit template test, power measurement and analysis, serial bus decode and analysis, etc.

It supplies a powerful set of serial bus analysis tools, which support auto triggering and analysis of many buses like I2C, SPI, CAN, LIN, FlexRay, RS232, USB and Audio, provide serial bus test solutions of embedded, vehicle, computer, video and other serial buses. Based on FPGA whole hardware decoding technique, GAO-DSO-101 improves the acquisition probability of random serial communication error codes.

GAOTek Digital Fluorescence Oscilloscope has a brand-new capacitance touch screen with user-friendly design which gives you excellent experience. The 10.4 in capacitance touch screen supports single-point and multi-point touch, can perform waveform scaling and movement swift. One-key zeroing design enables zeroing at horizontal, vertical and triggering positions. Digit and bus keypad greatly facilitates input speed. GAO-DSO-101 supports touch operation and mouse, push-buttons operation at the same time.

Multi-point capacitance touch screen performs waveform scaling and movement fast.

GAOTek Digital Fluorescence Oscilloscope provides over 20 types of free built-in training signals for educators, including sine wave, square wave, triangle wave, saw-tooth wave, runt pulse, repeated pulse, RF, digital burst, RS232, CAN, LIN, FlexRay and so on, which can help educators equip and upgrade labs.

GAOTek Digital Fluorescence Oscilloscope has standard 5U racket and multiple peripheral interfaces, containing LAN, USB host, USB device, VGA, auxiliary input/output, 10 MHz reference input/output, support Ethernet remote control, which is easy for function extension and system buildup.

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