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BK 2542B-GEN 100 MHz, 1 GSa/s Digital Storage Oscilloscope

BK Precision 2542B-GEN
4 of 5
100 MHz, 1 GSa/s Digital Storage Oscilloscope with Generator


  • 100 MHz bandwidth, 1GSa/s sample rate
  • Deep waveform memory up to 2.4 Mpts
  • 28 automatic measurements
  • FFT plus three additional math functions
  • Extensive trigger capabilities including pulse width, video, slope, and alternating trigger
  • Built-in context sensitive help system
  • For educators - ability to disable the Auto set button
  • PC software that lets you remotely control the oscilloscope and capture, save, and analyze waveform data
  • Front panel USB port for convenient storing and recalling of waveform data, setups, and screenshots on a USB flash drive
  • LAN interface enables users to capture screenshots from any standard web browser
  • Seamlessly load waveforms from the oscilloscope to WaveXpress waveform editing software and send them to arbitrary waveform generators
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BK 2542B-GEN 100 MHz, 1 GSa/s Digital Storage Oscilloscope

BK 2542B-GEN 100 MHz, 1 GSa/s Digital Storage Oscilloscope

4 of 5
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Product Information

BK 2542B-GEN 100 MHz, 1 GSa/s Digital Storage Oscilloscope

with Arbitrary Waveform Generator

BK 2540B Series Digital Storage Oscilloscopes

  • 1 uHz to 20 MHz sine output
  • 1 uHz to 20 MHz square output,1 mHz to 10 MHz pulse output
  • 30 built-in arbitrary waveforms
  • Save up to 10 user-defined arbitrary waveforms to internal storage
  • AM, FM, FSK, PSK, and PWM modulation
  • Frequency sweep and burst mode
The 2540B, 2542B, 2540B-GEN, and 2542B-GEN dual channel 60 MHz and 100 MHz digital storage oscilloscopes deliver performance and value, all in one portable solution. Maximize productivity using extensive features such as digital filtering, waveform recorder, pass/fail limit testing, and automatic measurements. These oscilloscopes offer powerful tools in a small affordable package with deep waveform memory up to 2.4 Mpts plus LAN and USB PC interface. The 2540B-GEN and 2542B-GEN models add a built-in function/arbitrary waveform generator (AWG).

Easily capture, save, and analyze measurement results with Comsoft PC software. All scope parameters can be controlled via a PC without the need for programming or communicate with the DSO via the built-in LAN interface using a web browser.

Additionally, these oscilloscopes can be integrated with AWGs using B&K Precision's waveform editing software, WaveXpress. WaveXpress allows users to easily modify waveforms downloaded from the scope and can also be used for analysis of deep memory acquisitions.

Educators will appreciate the ability to disable the Auto Set button that would automatically setup the scope to display a signal, circumventing the need to know how to set up scope parameters. This is key for teaching waveform measurement fundamentals as if it was an analog oscilloscope. These oscilloscopes are ideal for applications in design and debugging, service and repair, and education.

Front Panel


Rear Panel


The Tools You Need

The built-in LAN interface allows you to easily capture screenshots at a user-configurable refresh rate with a web browser. A GUI simulating the front panel provides full DSO control. This feature can be useful in an education setting.

PC Connectivity
Comsoft software provides seamless integration between the oscilloscope and PC. Capture and transfer waveforms, screen images, setups, and measurement results to a Windows PC via the LAN and USB device port on the back of the instrument. A USB host port on the front allows for quick and easy screen saving to a USB flash drive.

Deep Memory
Beneficial for applications such as I2C serial data streams, deep memory lets you capture waveforms in high resolution while maintaining a high sample rate over a longer period of time. Up to 2.4 Mpts of memory can be captured in as fast as 5 seconds* using binary transfer through the LAN or USB interface.

Powerful Measurement Functions
Display and measure the input signal’s frequency spectrum. Select one of the 5 FFT windows: Rectangular, Hanning, Hamming, Blackman, and Flattop. Use cursors to measure the spectral component’s magnitude and frequency.

Multi-Language Interface
Operate the oscilloscope in a language you understand best with the built-in multi-language interface. Choose from English, Simplified Chinese, Traditional Chinese, Korean, Japanese, French, German, Russian, Spanish, Portuguese, and Polish.

Waveform Recorder
Monitor and analyze long-term signal behavior by recording data continuously over an extensive period of time and playing it back for post acquisition analysis. Data is recorded in a sequence of up to 1000 frames.

Pass/Fail Testing
Generate user-defined pass/fail limits to quickly identify go/no go test results.

Digital Filtering
Filter out unwanted signal components such as various types of noise with built-in digital filters. Choose from Low-Pass, High-Pass, Band-Pass, and Band-Stop filters.

Arbitrary Waveform Generator Features


BK 2540B Series Digital Storage Oscilloscopes


Great for education labs, research, and manufacturing environments, the 2540B-GEN and 2542B-GEN help save bench space and cost by combining 2 instruments in 1. These models provide users a high performance DSO with a full-featured Function/Arbitrary Waveform Generator in a compact and affordable package.


Capture and Storage Function
Quick and easy single-button capture function lets you acquire and store your signal directly from the oscilloscope’s channels to the generator’s internal memory. Not only can CH1 and CH2 signals be captured, but math functions applied to the channels can also be captured and stored.
Graphical Help Feature
Display a graphical illustration explaining the parameters of the built-in arbitrary waveforms and modulation schemes. This is a convenient tool for students and new users.
Store user arbitrary waveforms internally (up to 10 waveforms) or externally as an ARB or CSV file to a USB flash drive.
Wide Array of Modulation Schemes
The built-in arbitrary waveform generator is capable of many different types of modulation for various applications. Modulate your waveforms with AM, FM, FSK, PSK, and PWM modulation schemes and use any of the 30 built-in waveforms as the modulating waveform.
30 Built-In Arbitrary Waveforms
Take advantage of the generator’s already built-in waveforms that fit your application.
Multiple Ways to Interface
  • Save and load arbitrary waveform data in CSV format from a USB flash drive.
  • Generate, edit, and upload arbitrary waveforms to the scope using the intuitive Comsoft PC software.
  • Remotely connect to the scope and download waveform data from custom software using SCPI commands.

What's In The Box

  • 1 - 150 MHz 10:1 Probe Set (2 pc)
  • 1 - Power Cord
  • 1 - USB interface cable
  • 1 - Certificate of Calibration
  • 1 - Comsoft Software Installation Disk
  • 1 - 3 Year Warranty
  • 1 - User Manual


Digital Storage Oscilloscope Specifications
Model 2540B / 2540B-GEN 2542B / 2542B-GEN
Performance Characteristics  
Bandwidth 60 MHz 100 MHz
Real Time Sampling Rate Single Channel 1 GSa/s
Dual Channel 500 MSa/s
Channels 2
Rise time <5.83 ns <3.50 ns
Max Memory Depth
(based on sample rate)
1 GSa/s 16 kpts
500 MSa/s 8 kpts (dual channel)
500 MSa/s 2.4 Mpts* (single channel)<
≤ 250 MSa/s 1.2 Mpts* (single and dual channel)

*Maximum number of points can only be extracted via remote control using the USB, RS232C, or LAN interface.
Vertical Resolution 8 bits
Vertical Sensitivity 2 mV/div -5 V/div (1-2-5 order)
DC Gain Accuracy 10 mV/div to 5 V/div ±3.0%
2 mV/div, 5 mV/div ±4.0%
Maximum input voltage 400 V (DC+AC PK-PK, 1 MΩ input impedance, X10), CAT I
Position Range ±8 divisions away from the center of the screen
Bandwidth Limit 20 MHz selectable
Horizontal Scan Range 2 ns/div to 50 s/div
Timebase Accuracy ±0.01 %
Input Coupling AC, DC, GND
Input Impedance I MΩ || 18 pF
Vertical and Horizontal Zoom Vertically or horizontally expand or compress a live or stopped waveform
I/O Interface  
USB USB host port for flash drives, USB device port for remote control via PC and Comsoft software
RS232 Remote control via PC and Comsoft software
LAN Remote control via web browser or PC and Comsoft software
Pass/Fail Pass/Fail output
Acquisition Modes  
Normal Display sample data only
Peak Detect Capture the maximum and minimum values of a signal
Average Waveform averaged, selectable from 2, 4, 8, 16, 32, 64, 128, 256
Trigger System  
Trigger Types Edge, Pulse Width, Video*

*Support signal Formats: PAL/SECAM, NTSC
Trigger condition : odd field, even field, all lines, or line number
Trigger Modes Auto, Normal, Single
Trigger Coupling AC, DC, LF reject, HF reject
Trigger Source CH1, CH2, EXT, EXT/5, AC Line, Alternating
Pulse Width Trigger Trigger Modes: Positive Pulse (>,<,=), Negative Pulse (>,<,=)
Slope Trigger Time: 20 ns-10 s
Alternative Trigger CH1 trigger type: Edge, Pulse, Video, Slope
CH2 trigger type: Edge, Pulse, Video, Slope
Hardware Frequency Counter  
Reading resolution 5 digits
Range up to oscilloscope°s maximum bandwidth
Waveform Math and Automatic Measurements  
Math operation Add, Subtract, Multiply, FFT
FFT Window mode Rectangular, Hanning, Hamming, Blackman, Flattop Sampling points 1024
Measurements Max, Min, VPP, High, Low, Amplitude, Average, RMS, Overshoot, Preshoot, Cycle average, Cycle RMS, Frequency, Period, Rise time, Fall time, +Width, -Width, +Duty, -Duty, Delay, Phase, X at MAX, X at MIN
Types Voltage, Time
Measurements Δ V, Δ T, 1/ Δ T (frequency)
Auto Set  
Function Single button automatic setup of both channels for vertical, horizontal and trigger system. Can be disabled for training purposes
Requirements Minimum voltage >10 mVpp, 0.5% duty cycle and minimum frequency >50 Hz
Display System Display 5.7 in. Color TFT, 320 x 234 resolution, 24-bit true color
Wave display range 8 x 12 div
Wave display mode Dots, Vector
Persistence Off, Infinite
Waveform interpolation Sin(x)/x, Linear
Color mode Normal, Inverted
Environmental and Safety  
Temperature Operating: 32° F to 104 °F (0 °C to +40 °C)
Non-operating: -4 °F to 131 °F (-20 °C to +55 °C)
Humidity Maximum 80% R.H. for temperatures up to 87.8 °F (31 °C), decreasing linearly to 50% R.H. at 104 °F (40 °C)
Altitude Operating: 9,842.5 ft (3,000 m)
Non-operating: 49,212.6 ft (15,000 m)
Electromagnetic Compatibility Meets EMC Directive 2004/108/EC, meets EN61326 Class A
Safety EN61010-1: 2001, EU Low Voltage Directive 2006/95/EC
Power Requirements 100-240 VAC, CAT II, 50 VA max, 47 Hz to 440 Hz
Dimensions (WxHxD) 12.6° x 6.16° x 4.84° (320 x 156.5 x 123 mm)
Weight 6.2 lbs. (2.81 kg)


Function/Arbitrary Waveform Generator Specifications
These specifications apply to models 2540B-GEN and 2542B-GEN only.
Model 2540B-GEN  &  2542B-GEN
Frequency Characteristics
Sine 1 µHz to 20 MHz (2540B-GEN)
1 µHz to 40 MHz (2542B-GEN)
Square 1 µHz to 20 MHz
Pulse 1 mHz to 10 MHz
Built-in AWG 1 mHz to 1 MHz
User AWG 1 mHz to 1 MHz
Frequency resolution Sine, Square 1 µHz
Pulse, Built-in ARB, User ARB: 1 mHz
Frequency accuracy ≤ µ 5 x 10 -4
Frequency stability µ 5 x 10 -5
Waveform Characteristics
Harmonic distortion (sine) < 5 MHz
-50 dBc
≤ 10 MHz -45 dBc
>10 MHz -40 dBc
Rise / Fall time (square, pulse) < 20 ns
Duty cycle (pulse) 10% to 90% (at 10 MHz)
>0.01% to 99.99% (below 10 kHz)
Pulse width 10 ns to 999.99 s
Waveform length 8000 points
Vertical resolution 8 bits
Sampling rate 40 MSa/s
Non-volatile memory 10 waveforms storage capability
Built-in arbitrary waveforms Sine, Square, Triangle, Up ramp, Down ramp, Positive pulse, Negative pulse, Positive double pulse, Negative double pulse, Positive DC, Negative DC, Full Wave, Half Wave, Clipped Sine, Gate Sine, SQRT, Exponential, Log, Semicircle, Tanh, Sinc, Noise, Duty 10%, Duty 90%, Up Step, Down Step, Tri-pulse, Trapezoidal, Cosine, and SCR
Amplitude Characteristics
Generator Output (GEN OUT)
Amplitude range freq. ≤ 20 MHz 2 mVpp to 20 Vpp (open circuit), 1 mVpp to 10 Vpp (50 Ω)
freq. > 20 MHz 2 mVpp to 6 Vpp (open circuit), 1 mVpp to 3 Vpp (50 Ω)
Resolution 1 µVpp (max.)
Accuracy ≤ µ 5% µ1 mV @ 1 kHz sine waveform
Flatness freq. ≤ 5 MHz ± 5%
freq. > 5 MHz ± 10%
Flatness (built-in AWG, user AWG) freq. ≤ 50 kHz ± 5%
freq. > 50 kHz ± 20%
Output impedance 50 Ω
Modulating Waveform Output (MOD OUT)
Waveforms All 30 built-in arbitary waveforms
Output amplitude 5 Vpp µ 20%
Output impedance 600 Ω
AM, FM, PWM, and DCOM Modulation Characteristics
Carrier waveforms
Sine, Square (AM, FM, DCOM)
Pulse (PWM)
Modulating waveforms All 30 built-in arbitrary waveforms
Modulation frequency 1 mHz to 1 MHz
AM modulation depth 0% to 120%
FM Frequency deviation 0.1% to 99.9%
PWM Width deviation 1% to 99%
FSK Modulation Characteristics
Carrier waveform Sine
Hop frequency 1 µHz to 40 MHz
Interval time 1 ms to 40 s
PSK Modulation Char acteristics
Carrier waveform Sine
Hop phase 0° to 360°
Interval time 1 ms to 40 s
Frequency Sweep Characteristics
Waveforms Sine, Square
Frequency range< 1 µHz to 20 MHz (2540B-GEN)
1 µHz to 40 MHz (2542B-GEN)
Sweep mode Linear Up, Down, Up-Down
Sweep time 1 ms to 500 s
Burst Character istics
Waveforms All 30 built-in arbitrary waveforms
Counts 1 to 60000 cycles
Burst rate 1 mHz to 1 MHz


ilt-in arbitrary waveform

BK Precision 2542B-GEN Product Specifications Summary:
(for full specs please see the full specs tab or the data sheet)

Oscilloscopes/Digital Oscilloscopes Template

Bandwidth What's This?100 Mhz
Sampling Rate What's This?1 GS/S
Memory What's This?2.4 MP [megapoints] (2457.6 kB)
Rise Time What's This?3.5 ns
Screen Type (Oscilloscopes)TFT/LCD
Screen Size5.7 IN
Bits What's This?8
Battery OptionsNo

Test Equipment General Attributes

Warranty3 YEARS
Additional Info/CommentsGreat for education labs, research, and manufacturing
environments, the 2540B-GEN and
2542B-GEN help save bench space and cost by
combining 2 instruments in 1. These models
provide users a high performance DSO with a
full-featured Function/Arbitrary Waveform
Generator in a compact and affordable package.
Calibration IncludedFactory Calibration
Power Supply Voltage120V/220V Universal
Safety ApprovalCE
Data Logging What's This?Yes
Interfaces I/O LAN / Ethernet, Other, RS-232, USB Host, USB
StorageInternal Memory, USB Flash Drive
Product Weight6 LBS
Product Height6 IN
Product Length13 IN
Product Width5 IN
Shipping Weight9 LBS
ECCN Number3A992
HTS/Schedule B Number9030201500
Country of OriginChina
Shipping Height10 IN
Shipping Length17 IN
Shipping Width9 IN



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BK Precision 2542B-GEN Customer Reviews

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Jim Anderson
Location: Marinne on St Croix Minnesota USA
Recommended: Yes


Service was fine and we are pleased with the device.
0 out of 0 found this review helpful. Did this help? Yes No
Location: Morris New Jersey US
Recommended: Yes


* Has VERY handy Arbitry Signal Generater; it's a versatile gemeral purpose instrument
* Other features and performance similar to TEK
* Good quality
* Good value (mine came with free accesories)

* Needs higher resoluton display (I miss the clean analog 'scope displays; my digital TEK 100 MHz display is no better)
* Some of the controls and soft keys are a bit esoteric (but with patience and practice, they work)
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