As a premium player in the measurement industry, TEKWAY takes its own technical expertise to power research & development. Besides the DST series A portable oscilloscopes, TEKWAY has successfully delivered the latest DST series B oscilloscopes, which consist of three subseries: 3000B, 4000B and 1000B. These new products cover the bandwidths from 25MHz to 200MHz, and enable the real-time and equivalent sampling rates between 1GS/s and 25GSa/s. In addition, they embrace up to 1M memory depth for better observation of the waveform finest details. Based on the design of the first-generation DST series oscilloscopes, the TEKWAY R&D team has managed to better satisfy the customer requirements. The B-model series not only optimize features of the A-model series, but integrate more new features, making the new products more cost-effective, efficient and competitive. It is more than transcendence.

A single oscilloscope requires only the dimensions of 313mm*108mm*142mm (a figure rather competitive in the industry), greatly saving space in the lab environment; it weighs only 2.08Kg.

Figure 1 Front Panel of DST Series B Oscilloscope

Key Features of B-model Oscilloscope:

• Real-time sampling rate up to 1GSa/s and equivalent sampling rate up to 25GSa/s;

• Bandwidths from 25MHz to 200MHz;

• Memory depth up to 1M;

• The ultra-thin design makes it super compact and portable;

• Provides software for PC real-time analysis

• Compliant with USB Host, supports storage to USB device and system upgrading via USB port;

• 7" 64K colored TFT LED offers vivid waveform display;

II. Super-sized Screen and User-friendly Operation Interface

The light panel plus the 7" digital widescreen features uniqueness of oscilloscope architecture in the industry, minimizing space consumption at lab and maximizing the display window for waveform observation, bringing a brand-new measure experience to you (See Figure 1).

1、WINDOWS-Style Menu and Comprehensive Icon Information

The interface and menu are equivalent to user-friendly Windows system; detailed menu information and functional buttons enable engineers to fully gain much insight on measurement data; the multifunctional knobs and shortcut keys help save much time in measurement.

2、Various Frames to Display

The DST series B oscilloscopes, unlike other comparable products, offer perfect visual effect to relieve engineers of visual fatigue, which assure amazing measurement experience and efficiency. One of Tekway’s goals is to help customers enjoy on measurement.

III. 1M Memory Depth and Excellent Wave Processing

Up to 1M memory depth and up to 2500 frame wave refresh rate minimize blind-zone impact on accuracy as well as improve signal capture capability, reassuring better waveform restoring. To show the finest details of measurement on the screen, the latest model provides both the fastest refresh rate and the horizontal display at 20 divisions.

1、Dual-Window Design -- More Clear, More Detailed

High-capacity memory depth and dual-Window design (main Window and expansion Window) enable engineers to magnify 40,000 diameters to observe the finest detail. For instance, when setting the memory depth to 1M and time base in main Window to 80us, the waveform in the expansion Window would be magnified to 2ns for observation.

2、Automatic Cruise Feature – single press available

In the dual-Window mode, the B series functions automatic waveform cruise. Engineers could select the suitable memory depth and operate B-series oscilloscope with shortcut menu for the special feature.

3、Menu Invisibility Feature – Single Press Available

Press the Multifunctional key F0 to make menu invisible on the right side, enabling engineers to analyze waveform in full-screen Window.

4、 High Refresh Rate and DPO-equivalent Wave Display

In addition to the high refresh rate (2500 frames), the DST series B help engineers gain insights into details for TEKWAY’s wave-retentive technology, which is equivalent to conventional analog oscilloscope’s performance based on frequency-adjustable electron beams in any complex environment.

IV. A Range of Trigger Modes

Besides usual edge-trigger mode, the series B adopt advanced trigger modes, including alternate, slope, overtime, to enhance measurement efficiency.

1、Hardware-Enabled Automatic Trigger Algorithm

With hardware-enabled automatic trigger algorithm, the DST Series B oscilloscopes execute automatic trigger of low-frequency & long hold-off-time signals. Even frequency is as low as 0.6Hz (as shown in the figure below), the refreshes on the screen are continually produced, ensuring unique measurement experience equivalent to analog oscilloscope.

Searching triggers – no signals available (in automatic trigger mode)

Signal is detected and triggered

2、 Trigger Hold-off Function

   The Trigger Hold-off function is to generate stable display of complex waveforms (such as pulse trains) comparable to analog feature of B-series oscilloscope. For example, if the hold-off time is 2S, the oscilloscope will perform the automatic trigger in 2 seconds, and then signal triggers after the 2-second hold-off time.

Oscilloscope uses trigger hold-off to generate stable display of AM waveforms

Oscilloscope performs a first trigger

Within 2S hold-off time, oscilloscope performs automatic acquisition (no trigger)

Oscilloscope performs a second trigger after 2S hold-off time

3、Alternate Trigger

The alternate trigger is comparable to analog oscilloscope, which displays two signals with different frequencies on the same screen. The trigger modes possessed in two channels (CH1 and CH2) could be combined together to conduct any possible analysis.

4、Overtime Trigger -- Based on Digital Time Interpolation Technique

The DST series B oscilloscopes provides overtime trigger function, based on TEKWAY’s unique digital time interpolation technique. With this function, a stable display of waveforms could be acquired within the pulse period while setting the overtime period for any relatively wide (positive or negative) pulse. While input signal carries other signals, stable waveforms are acquirable by adjusting the trigger time.

5、Slope Trigger (Rise and Fall Times)

Use slope trigger to sense triggers regarding to rise/ fall time. The mode help measure rise/fall time more flexibly and accurately than edge trigger mode.

6、Sensitive Trigger on Small Signal (Amplitude)

The DST series B oscilloscopes support small-signal-trigger. For low-frequency signals, the peak-to-peak value for trigger shall be at least 0.8mv. See the figure below.
Unlike other comparable oscilloscopes, TEKWAY’s oscilloscopes can not only automatically enable the bandwidth limitation in measurement, but support high-frequency small signal trigger mode to tackle measurement with minimum bandwidth and amplitude base. In addition, engineers could select bandwidth limit switch for their respective measurement requirement.

A stable trigger on low-frequency signal (0.8mv)

A stable trigger on high-frequency signal (60MHZ signal and low than 2mv)

7、Accurate AutoSet Function

The DST Series B oscilloscopes combines both Auto Set function (detecting sine, pulse, video) and small-signal (peak-to-peak value less than 4mv) automatic measurement, enabling convenient detection of small signals and effective small-signal trigger mode via a keystroke.