Friday, October 20, 2017

DeepMeasure Finds Needles!

The DeepMeasure analysis tool in PicoScope 6 software finds needles in haystacks with PicoScope 3000, 4000, 5000, and 6000 oscilloscopes!

DeepMeasure delivers automatic measurement of waveform parameters on up to a million successive waveform cycles. Results can be easily sorted, analyzed and correlated with the waveform display.
As electronic devices become more complex, design engineering teams need better tools to record, analyze and visualize waveform data and measurement statistics. Most digital oscilloscopes provide automated measurements of common parameters such as frequency, period, rise and fall times, duty cycle, and maximum and minimum voltages, but the measurements are usually limited to a single complete waveform cycle captured in the oscilloscope memory. Subsequent waveform cycles in the same acquisition are displayed on the screen but are discarded from the measurement results. Measurement statistics (max/min/average/sum) have to be compiled over multiple acquisitions, and irregular bit patterns are easily missed or ignored.
Oscilloscopes with deep capture memory, such as the PicoScope 3000 Series (512 MSamples) and 6000 Series (2 GSamples) can capture waveforms with thousands of waveform cycles, at full sampling speed with each triggered acquisition. DeepMeasure returns a table of results that includes every waveform cycle captured in the memory. Ten waveform parameters are included in the first version of the tool and over a million results of each parameter can be collected.
The table of captured results can be sorted by each parameter in ascending or descending order, enabling engineering teams to spot anomalies and rapidly identify the cause of complicated issues. So, for example, click on the Rise Time column heading and you can quickly find the fastest (or slowest) rise time out of up to 1 million cycles of the waveform. Double-clicking on a specific measurement highlights the corresponding cycle in the oscilloscope view.
For more extensive analysis, such as histograms and advanced data visualization, the table of measurements can be exported for use with tools such as Excel and MATLAB.
“Visualizing real-world test data is key to solving many of today’s engineering challenges,” explained Trevor Smith, Business Development Manager, Test & Measurement, at Pico Technology. “DeepMeasure is a powerful tool that takes advantage of PicoScope deep memory oscilloscopes to enable rapid analysis and debug of complex waveforms ranging from serial data streams to laser pulses and particle physics experiments. Anomalies can be easily pinpointed and correlated with other events captured by the oscilloscope.”
PicoScope with DeepMeasure is free of charge for users of PicoScope 3000, 4000, 5000, and 6000 Series oscilloscopes. The beta version can be downloaded now from

Thursday, October 19, 2017

Recreating Undocumented PCBs

Remanufacturing an obsolete circuit board in the absence of relevant documentation is made easier with this unique hardware/software system.


Imagine you are confronted with an obsolete or undocumented circuit board from some vital piece of equipment and the situation requires that product function again, or maintains production until a drastic redesign has occurred. But there exists no BOM, no layouts, and no schematics. What if you have been tasked to redesign a portion of a board that contains obsolete components, and you don’t have documentation as a guide? Equipment that is no longer manufactured or supported by the original supplier is an increasingly pressing problem for users and maintainers of long life systems such as water and electricity utilities, medical equipment, military systems, air traffic control, aircraft maintenance, avionics simulation, traffic control, trains, and signaling.

For systems with an operational life of 25 years or more, the support strategy for spares and repairs are critical issues. Famous and long established companies are being taken over, restructured, or go out of business, leading to the growing situation where no support is available. Rapidly changing technology increases support and manufacturing problems. Many commercial products quickly become obsolete (try buying the same PC motherboard after only six months ….) and are not supported or manufactured long before the end of their true operating life. And although many consumer products are replaced rather than repaired, this approach cannot be applied to long-life systems.

A standard solution from many suppliers is an upgrade to the latest product or its nearest equivalent. But when a product is part of a large system that has been through rigorous certification, this solution is unacceptable unless the replacement is physically and functionally identical (form/fit/function). Changing to a new component may mean the enormous expense of requalifying the whole system for critical equipment such as medical diagnostic machines.

Read on here:

Wednesday, October 18, 2017

Saelig Introduces SAM40 24-Bit Data Acquisition for HDO Oscilloscopes

 up to 24 channels for low frequency acquisition and analysis with a 4/8 channel Teledyne LeCroy 12-bit resolution high definition oscilloscope

The Teledyne LeCroy SAM40 Data Acquisition Unit provides up to 24 analog or digital input channels for low frequency (e.g. sensor signal) acquisition and analysis when connected to a 4 or 8 channel Teledyne LeCroy 12-bit resolution high definition oscilloscope. This capability is ideal for system debug and analysis of motors and drives, power products, appliances, Internet of Things (IoT), vehicle/automotive devices, and other the embedded, electromechanical, and mechatronic designs in the medical, military, and aerospace fields.

The SAM40 offers high precision and accuracy 24-bit resolution measurements for signals up to 40 kHz bandwidth with a sample rate of 100kS/s.  Operation is easy with plug-and-play support from a 4 or 8 channel 12-bit resolution Teledyne LeCroy oscilloscope.  The SAM40 simply connects to the oscilloscope with a USB2.0 cable for data transfer and control/trigger commands, and with BNC cables for clock and timebase synchronization. No programming or complex setups are required.  The oscilloscope’s math, measure, analysis, pass/fail and option packages utilize the sensor inputs the same as any other channel. This makes the Teledyne LeCroy's deep toolbox even more powerful.
IEPE/ICP sensors are also supported with the built-in internal 4mA bias supply.  The BNC signal inputs are compatible with wide variety of off-the-shelf sensors.  The SAM40’s features include bandwidth limiting, with settings as low as 100 Hz to reduce visible noise, and adjustable gain in 1/2/5 steps, to accurately acquire and display a wide range of signal levels.  All channels have 24-bit resolution, stored in 32-bit floating point format, with 0.05% total accuracy.
The SAM40 24-bit acquisition system offers a rescaling/unit conversion capability. Teledyne LeCroy's unit conversion package provides the most intuitive display of sensor, mechatronic and electromechanical data. Each sensor channel input has a unique rescaling setup directly in the setup dialog with y=mx+b rescaling capability and selection of physical units. All unit conversions carry through logically when unitized sensor inputs are used in math or measurements.
The SAM40 is useful for analyzing analog speed or torque sensor signals, vibration sensors, accelerometers, and other mechatronic signals. Engineers commonly use multiple instruments to debug and validate complex deeply embedded control systems, mechatronics, and electro-mechanical systems. Multiple instruments report different information on different displays and in different formats. An HDO with a sensor acquisition module cost-effectively replaces multiple instruments with one consolidated view of system performance. Leverage the Teledyne LeCroy deep toolbox to perform math, measurements, pass/fail and other analysis on all acquired data, or apply an application package to gain even faster time to insight.
Available in 8, 16, or 24-channel inputs, the SAM40 Data acquisition Unit starts at $8,990 from Teledyne LeCroy’s authorized North American distributor Saelig Company, Inc. Fairport, NY. 

Tuesday, October 17, 2017

EMCView PC Software For EMC Pre-compliance Testing

TekBox EMCView simplifies the process of EMC pre-compliance testing of radiated and conducted emissions with numerous pre-configured project files for CISPR-xx (EN550xx) emission measurements
Saelig Company, Inc. announces the availability of the TekBox EMCView Pre-compliance Testing  Software.  This PC-compatible software simplifies the process of EMC pre-compliance testing of radiated and conducted emissions.  EMCView complements an emissions test setup of a spectrum analyzer, an LISN (Line Impedance Stabilization Networks) and an EMI-quiet TEM (Transverse ElectroMagnetic) Cell.  Built-in amplitude correction provides the correction and conversion coefficients for cables, amplifiers, attenuators, LISNs, TEM cells, antennas, RF current probes, striplines and capacitive coupling clamps.

Without any time-consuming setup, the software is ready for measurements immediately after installation on a PC. All emission-related CISPR-xx (EN550xx) measurements, as well as some automotive manufacturer standards, are pre-configured in corresponding project files.  The resulting graph supports two complete measurement runs, such as Average / Quasi-Peak or Peak / Quasi Peak or alternatively a fast Quasi-Peak scan of critical peaks.


·         numerous pre-configured project files for CISPR-xx (EN550xx) emission measurements

·         graph supports two complete measurement runs, same as in a test house

·         fast Quasi-Peak scan of critical peaks, immune to frequency drift of the selected peaks

·         configurable limit lines and segment files

·         configurable correction files for cable, LISN, amplifier, antenna etc.

·         configurable margins for the identification and selection of critical peaks

·         supports import and overlaying of reference measurements for comparison purpose

·         linear or logarithmic frequency axis

·         automatic creation of test reports

·         many import/export-functions

EMCview software currently supports spectrum analyzers from Rigol and Siglent,  but support for other manufacturers will be added in future software versions.  The anlyzers should preferably be equipped with the manufacturer’s “EMI option”, although it is not essential; if it is not installed, the analyzer will change the preconfigured resolution bandwidths of 200Hz, 9kHz or 120kHz (as specified in the EMC standards) to 300Hz, 10kHz or 100kHz.
With EMCView Pre-compliance Testing  Software, in-house measurements of EMC behavior during product design phase, EMC educational training and pre-compliance product testing are all made easier.   
Created by EMI experts TekBox, it is available now from their authorized North American distributor Saelig Company, Inc. Fairport, NY.  For detailed specifications, free technical assistance, or additional information, please contact Saelig at 888-7SAELIG, via email:, or by visiting

Monday, October 16, 2017

What is an SDK ? 

Have you ever wondered what an "SDK" is?  It is an abbreviation for "Software Development Kit" stands for ? It's a set of tools for software development that allows a programmer to create applications for a particular system, for example certain packages of software; frameworks; hardware platforms; computers in general, consoles, operating systems, etc. 
If you need to automate some equipment that has a PicoScope in it, or you want to program some testing using a PicoScope or PicoLog device, but don't know where to start?

In this video, Pico’s technical support engineer Hitesh Mistry explains how PicoSDK Software Development Kit works, what drivers and code examples are available and where to find them all. LabView, MATLab, etc.

Friday, October 13, 2017

APTA 2017 (Atlanta) Success!

#APTAEXPO2017 was a great success and consolidated ABI's position as the PCB test/repair supplier of choice with #transit agencies, #rail operators and OEMs. There was huge interest in ABI's solutions from organizations such as MARTA, Amtrak, Siemens, Wabtec Corporation, BAE Systems, Thales, and many more.

ABI's test equipment can be used in-house without the need for sending bad boards out for repair.  Great for rail communication systems, braking and traction, air conditioning, control systems, and signaling equipment.

We look forward to working with each of this important companies and assist with this time-saving and cost-saving technology to keep electronic systems running at the lowest cost possible!


Thursday, October 12, 2017

Now In Stock: Wireless 30MHz Scope-In-A-Probe!

The IkaScope WS200 is a pen-shaped battery-powered wireless oscilloscope that streams captured signals to almost any WiFi-connected screen.  The IkaScope WS200 offers a 30MHz bandwidth with its 200MSa/s sampling rate and the maximum input is +/-40Vpp.  It provides galvanically-isolated measurements even when a USB connection is charging the internal battery.  The IkaScope WS200 will work on desktop computers (Windows, Mac, and Linux) as well as on mobile devices like tablets or smartphones (iOS and Android Q4 2017).  The free application software can be downloaded for whichever platform is needed.

The IkaScope WS200 has no power switch; it detects pressure on the probe tip and turns on automatically.  Patented ProbeClick technology saves battery life: all power-consuming circuitry is only turned on when the probe tip is pressed, and the IkaScope WS200 automatically shuts down completely after a short period of non-use. The internal 450mAh battery lasts about one week with daily regular use before recharging is necessary. An isolated USB connection allows for recharging the internal battery and two LEDs in the unit indicate battery charge and WiFi status.

Clicking the Autoset button on the IkaScope software automatically adjusts gain and time-base to quickly view the signal optimally.  The IkaScope WS200 also knows when to measure and when to hold the signal display without the need for a Run/Stop button. The IkaScope's innovative Automatic History feature saves a capture of the signal when releasing pressure on the ProbeClick tip.  The History Database is divided into Current Session and Favorites, where signal captures are permanently saved, even after the application is closed.  Previously measured signals can quickly be recalled.  

Most desktop oscilloscopes have a static reference grid with a fixed number of divisions, but the IkaScope allows pinch and zoom on touch screens (or zoom in/out with a mouse wheel), stretching the grid and allowing an operator to move and zoom through a signal capture for detailed review.  The associated software even has a share button on the screen: simply click on it to share screenshot measurements.   
Made by Ikalogic, a growing European embedded test equipment manufacturer, the CE/FCC/RoHS-certified IkaScope WS200 Oscilloscope is small (6.4” x 1.3” x 0.7”) and very lightweight (2 oz.) and is ideal for every traveling toolbox.

Monday, October 2, 2017

Automobile Noise and Vibration Diagnostic Tool

NVH Kit works in conjunction with the PicoScope automotive oscilloscopes for real-time diagnostics

The PicoDiagnostics NVH Kit from Pico Technology is a cost-effective tool for solving the many noise, vibration, and harshness problems presented to automotive technicians. The NVH Kit works in conjunction with PicoScope 4000 automotive oscilloscopes to provide real-time diagnostic information such as bar graphs and frequency charts.  The Kit comes complete with everything needed for finding and pinpointing these kinds of issues.  The ability to start data recording before a road test, and play back the recording for later analysis insures that driver attention remains on the road. 

PicoDiagnostics NVH Kit provides a breakthrough in accurate analysis of vehicle noise, vibration and harshness problems. Taking advantage of the power and large display of a laptop with the data-gathering power of the PicoScope, the NVH Kit can directly check sensors, components, noise, and vibrations, with additional help in capturing and diagnosing intermittent and performance problems.

The PicoDiagnostics NVH system provides clear advice, analysis and procedures for dynamic driveline balancing, and it includes attachment support for pinion flange, single weight, and hose clamp methods. Step-by-step procedures are prompted by help and graphical displays. Simple bar charts and graphs provide results for quick diagnosis and ease of use. Full analysis and advanced features (including waterfall and spectral displays) are also provided by the software.
The NVH Kit has been designed for comprehensive road testing, workshop diagnosis, and driveline balancing.  It detects and isolates multiple vibrations and noises, providing help and advice on causes and fixes. It can use a J2534-compliant interface to acquire engine speed data or signal input, useful for diagnosing older or non-compliant vehicles. The software includes a customer report function to help in explaining the diagnosis and repair.  The PicoDiagnostics® NVH 3-Axis Kit (PP986) comes complete with an accelerometer, the PicoScope Interface, a BNC cable, a microphone, and all necessary leads. A 4-Axis version (PP987) includes an extra accelerometer.

These NVH Kits are made by Pico Technology, Europe’s award-winning automobile oscilloscope adapter manufacturer, whose products are chosen by car manufacturers and repair centers worldwide.  The PicoDiagnostics® NVH Kits are available now from Saelig Company, Inc. their USA technical distributor. For detailed specifications, free technical assistance, or additional information, please contact Saelig 888-7SAELIG, via email:, or visit

Friday, September 29, 2017

USB DrDAQ Data Logger Intros PC-based data logging.

Whether you’re a teacher, student, hobbyist or professional the USB DrDAQ Data Logger gives you an inexpensive entry into the world of PC-based data logging.

The USB DrDAQ Data Logger really is all that you need with these features:
  • Built-in sensors for light, sound and temperature
  • 4 digital inputs and outputs
  • 3 sockets for external sensors
  • Ultra-high impedance input for pH or Redox measurements
  • 100 kHz, 8-bit oscilloscope with a ±10 V  range
  • Signal generator with AWG for creating your own waveforms
  • Captures fast signals
  • USB connected and powered
  • Use up to 20 USB DrDAQs on a single PC
  • Supplied complete with PicoLog, PicoScope and an SDK


Thanks to the built-in sensors for light, sound and temperature you can start using your USB DrDAQ Data Logger straight out of the box. (Doctor DAQ has also included an RGB LED that you can program to show any 1 of 16.7 million colors.)  When you want to do more with your DrDAQ you can, thanks to the external sensor sockets. Simply buy an external sensor and your DrDAQ can measure humidity, oxygen levels, external temperatures and more. We provide you with all you need to know to connect external sensors to your DrDAQ so you can even design and use your own sensors.

Digital I/Os

Your USB DrDAQ also includes 4 digital input/outputs. In input mode these give you even more monitoring options. When used as outputs they enable you to use your DrDAQ to control external devices. 2 of the digital I/Os include a pulse-counting function when used as inputs, and a pulse-width modulation (PWM) output capability.

More than just a data logger

Thanks to the power of your DrDAQ you can also use it as an oscilloscope or spectrum analyzer. Just run the supplied PicoScope software and your DrDAQ becomes a single-channel scope with a 100 kHz  bandwidth, 8-bit resolution and the ability to measure voltages of up to ±10 volts.
But that’s not all. Your DrDAQ also includes a signal generator. The signal generator output not only includes a standard function generator, but also an arbitrary waveform generator (AWG) too. Using the AWG function you can create your own waveforms.

All the software you want — and it’s free

The PicoScope oscilloscope software uses the power of your PC or laptop to deliver high performance, and has an easy-to-use Windows interface. All of its advanced features, such as spectrum analysis, automatic measurements and statistics, are included in the price of your USB DrDAQ.
PicoLog is a powerful yet flexible data acquisition program designed for collecting, analysing and displaying data over long or short periods of time. Data can be viewed both during and after collection in spreadsheet or graphical format. The data can also be easily exported to other applications.
If you want to write your own software or use the DrDAQ with third party software we provide a free software development kit (SDK). The SDK includes drivers for Windows XP (SP2 or later), Vista and Windows 7 (32- and 64-bit), and programming examples for C, C++, LabVIEW and Excel.

Hobbyist, student or professional — DrDAQ is all you need

The USB DrDAQ Data Logger has something for everyone: whether you’re a teacher looking for a fun way to perform data logging experiments in the classroom, a student wanting an inexpensive introduction to data logging and oscilloscopes, a computer programmer who wants to use C++ to monitor and control inputs and outputs of real-world devices, an hobbyist who wants to monitor and control their environment, or a professional wanting to measure pH under laboratory conditions — DrDAQ is all you need.

More here:

Thursday, September 28, 2017

5 Design Tips to help prevent RF interference in PCB designs.

The blog recently featured an interesting PCB layout article:

With almost everything we own is sending and receiving wireless signals, RF interference is a growing concern. Even if you aren’t transmitting, you may have RF sensitive circuits you need to protect—almost every wire becomes an antenna or receiver and the signals they can receive or transmit can degrade overall performance. This is true for all products, no matter how small or minor they might be.  It is critical to have a good understanding of how design parameters can affect RF interference levels.

Shielding (a “moat”) is important to incorporate on critical sections of the board to prevent interference, or to prevent interference from other portions of the board, affecting sensitive circuits. The moat is that area in the PCB that keeps RF on one side and other signals on their side. Many RF vendors define signal quality by signal-to-noise ratio (SNR), the difference between the received signal and the background noise level. The “moat” must encompass all RF parts/circuitry and is the land pattern for the fence or metal can.

The ground connection needs to take the shortest path to ground so it has the least likelihood to catch anything on fire. This is the same with PCB Design. Ground location is the first line of defense when it comes combating RF interference.  Shielding on the layer RF ground plane should be placed directly below component layer. This paired with vias will allow the noises picked up to go straight to the RF ground plane. This will help to minimize noise, since we cannot truly eliminate it. 

Read on here:

Wednesday, September 27, 2017

All-in-one Testing Tool Provides Many benchtop Instruments In One Box

The Multiple Instrument Station MIS4, is an all-in-one testing tool that provides all commonly required test instruments in one compact programmable hardware module, mounted in a compact case or installed in a PC drive bay.  Controlled by ABI’s sophisticated SYSTEM 8 Ultimate PC software with a simple yet programmable operator interface, the MIS4 combines eight laboratory instruments: a 3-channel 350MHz digital storage oscilloscope with sophisticated triggering options and automatic measurements; a 1.1GHz frequency counter and three 350MHz counters; a 14-bit dual-channel 25MHz arbitrary waveform function generator; a fully floating ammeter; a fully floating voltmeter; a fully floating ohmmeter; multi-rail 4-channel power supplies; and 8 programmable I/O channels to cover almost any test and measurement need. 
The MIS4 comes complete with the Windows-based TestFlow Manager, a step by step sequence of tests that guides operators during fault-finding or test procedure processes. Along with the specific instruments required for a test, additional instructions, photos, PDFs, videos and other documents can be included in a test sequence design to make complex test procedures understandable and repeatable. Automatic instrument setup speeds up test operations and set-by-step test sequences enables rapid operator training.  TestFlow Manager sequential testing reduces the risk of inaccurate measurements and automatically saves all test parameters for a final customized test report. It removes subjective operator data interpretation by using automatic results comparison. This frees an engineer’s time by allowing semi-skilled operators to run test procedures repeatably and accurately. This provides a much faster and more economical testing solution than using traditional oscilloscope, metering and other bench test methods, and can quickly produce the required Pass/Fail or other test and debug results.
Solving troublesome test situations where it takes a long time to set up a test procedure, or where instrument settings become inadvertently changed, MIS4 provides a simple combination of appropriate instruments in one compact, space-saving box.  Basic control via its versatile user interface allows problem solving by staff with a range of skill levels. Custom instruments can be created for individual operators to provide an ideal platform for computer-based training or specific or repetitive test routines. The sophisticated TestFlow Manager can remember unlimited test configurations, controlled by access levels with password protection, so that each operator can save instrument settings and recall them in seconds.
Applications include:
  • production test, education
  • automotive, manufacturing
  • oil & gas, telecommunications
  • maintenance
  • PCB testing and troubleshooting
  • power-on/power-off testing
  • QA reporting
  • automated test sequences

Monday, September 25, 2017

Use Your Strengths, Have An impact, Make a Living, & Bring Joy!

With no direct English translation, Ikigai is a Japanese term that embodies the idea of happiness in living. Yukari Mitsuhashi explains here:

For Japanese workers in big cities, a typical work day begins with a state called sushi-zume, a term which likens commuters squeezed into a crowded train car to tightly packed grains of rice in sushi.

Essentially, ikigai is the reason why you get up in the morning

The stress doesn’t stop there. The country’s notorious work culture ensures most people put in long hours at the office, governed by strict hierarchical rules. Overwork is not uncommon and the last trains home on weekdays around midnight are filled with people in suits. How do they manage?

The secret may have to do with what Japanese call ikigai. There is no direct English translation, but it’s a term that embodies the idea of happiness in living. Essentially, ikigai is the reason why you get up in the morning.

Read on:

Friday, September 22, 2017

How quickly can you recover a capital investment? 

We have just supplied ABI BoardMaster PCB equipment to San Francisco Municipal Transportation Agency (SFMTA) for keeping their new Siemens rolling stock running.  Our U.S based training instructor spent a solid 10 days teaching a team of technicians there to use the ABI equipment. 

Feedback from the team today on how the training went was very interesting! The SFMTA technicians were amazed to see how the ABI's test and repair equipment is to use. Because our training is 80% "hands-on" practical, two of the SFMTA's high value faulty electronic PCBs were fully repaired by their newly-experienced tech team during the hands-on training session that ended yesterday.

That's just an example on how fast ABI customers can recover their investment! Let us help you start saving time and money today. #Repairdontwaste

Call Saelig today at 585-385-1768 or see ABI products here:

Thursday, September 21, 2017

You've Not Seen a 100MHz Mixed Signal Oscilloscope Like This Before!

ABI CircuitMaster 4000M Precision Active Oscilloscope

ABI CircuitMaster 4000M Precision Active Oscilloscope
The CircuitMaster 4000M Precision Active Oscilloscope is unlike any other 100MHz mixed-signal oscilloscope as it provides some innovative test and measurement functions that enable engineers and technicians to perform several new types of circuit analysis.
The CircuitMaster 4000M is designed for safe probing of closely spaced components by adding precision DC measurement, signal storage and analysis functions to a traditional oscilloscope design. Indeed, a built in accurate voltmeter (24 bit) removes the need for multiple instruments, thus making the CircuitMaster a complete test and measurement station. In addition, the Active mode allows signals (AC and DC) to be injected into the board when required, allowing circuit conditions such as drive strength and source impedance to be checked – which is not possible with traditional oscilloscopes. In AC Active mode, the unit behaves much like a function generator. The CircuitMaster even has a built-in LogicView 4 channel analyser for logic signal display along with the 2 analogue inputs. FirmFlex and VI Curve functions provide impedance signature analysis on powered and un-powered boards.


  • 100MHz digital storage oscilloscope
  • 0.1% 24 bit digital DC voltmeter
  • Active mode - DC and AC function generator
  • FirmFlex node impedance analyzer
  • Multi-range 2 channel VI tester with pulse outputs
  • 2 analogue channels + external trigger
  • Multiway 40 channel signal multiplexer
  • Automatic and cursor waveform measurements
  • WaveStack signal acquisition memory
  • Stored and live tolerance mask waveform comparison
  • LogicView 4 channel variable threshold logic analyzer
  • USB interface for updates, settings and waveform storage

  • Application details here:

    Wednesday, September 20, 2017

    LoRaWAN Covers the World!

    Latest coverage map showing the global reach of network.

    Our LoRaWAN Field Test Device from European supplier Adeunis lets you do network validation prior to your solution deployment:

    The LoRaWAN Field Test Device by ADEUNIS RF is a ready-to-use system which provides connection to any operated network using the LoRaWAN V1.0 protocol. It allows to transmit, receive and instantly view the radio frames on the used network.
    Equipped with a large LCD screen, you can check all operating information (GPS coordinates, temperature, battery) and use of the network (uplink, downlink, SF, Packet Error Rate). Its ultra-fast and precise GPS optimizes geolocation operations. 
    This Field Test Device is particularly suitable for the validation of applications like sensor networks, asset tracking, smart buildings, metering, security, or M2M.
    With a built-in rechargeable battery, to allow many hours of use and can be recharged with any type of mobile phone charger.

    Tuesday, September 19, 2017

    Automotive Ethernet Compliance: Tests in Detail

    Figure 1: Testing transmitter timing master jitter
    entails creating a track of TIE measurements
    We've begun our deep dive into the subject of Automotive Ethernet compliance testing. In our last post, we covered the first two of seven tests: maximum transmitter output droop and transmitter clock frequency. Let's now look at transmitter timing jitter in master and slave modes.

    The test of transmitter timing master jitter uses test mode #2 (see the earlier post on the five test modes). Here, we will examine the RMS jitter of the medium dependent interface's (MDI's) output from the DUT over a period of at least 1 ms. We want to verify that the jitter on the transmitted clock is within the test limit of 50 ps.

    To begin, we want to set up a time-interval error (TIE) parameter (see this link for more on TIE measurements). A thumbnail definition for TIE is the difference between actual and expected edge arrival times, which, as it happens, is not dissimilar to the essence of jitter.

    Next, we want to create a track of TIE measurements. The track plot gives us insight into how the values change over time. A track plot shows each measured value in the acquisition. Figure 1 shows a zoomed-in view of an acquisition from the DUT's MDI output. We can see 13 TIE measurements plotted in the track that appears in the bottom display grid. Each of these measured values corresponds to a point on the acquisition: one for each edge. In this case, the maximum TIE value is 38 ps at TIE measurement 13. The track reveals that TIE is growing over time.

    Checking the RMS value of the track of TIE measurements against the test limit of 50 ps
    Figure 2: Checking the RMS value of the track of TIE
    measurements against the test limit of 50 ps
    Figure 2 shows a full acquisition and the accompanying TIE track. Recalling that we are testing the RMS jitter of the DUT's MDI output, we compare that value to the test limit of 50 ps. In this case, the value is 23.2 ps, well below the test limit.

    The test of transmitter timing jitter with the DUT in slave mode calls for direct probing of the DUT's transmit clock (TX_TCLK). Optionally, this test can be approached by using the test mode #3 waveform. Either way, the object is to verify that the jitter on signals received by the slave is within the specified limit of 0.01 UI (150 ps). We will measure the RMS jitter of the slave device's TX_TCLK.

    The specification indicates that each device must provide a means to access the transmit clock, but in the real world, this is rarely the case. Most devices are things like an ECU that's totally potted and enclosed. PHY evaluation boards are a different story, but the devices themselves are problematic. And without access to the TX_TCLK, this test cannot be performed. Again, the test mode #3 waveform may be used, but the letter of the specification calls for direct probing of TX_TCLK.

    Methodology for this test is very similar to the use of test mode #2 in testing master jitter. We measure TIE, create a track plot of the TIE measurements, determine the RMS jitter of this track, and compare it to the specification's test limit of 150 ps.

    Examining the TIE track plots can be revealing in many ways. Referring to the master jitter track of Figure 2, a cursory glance might seem as though there's little change over time but rather only randomness. But looking more closely, one can discern distinct lower-frequency behavior as well as a higher-frequency oscillation riding on top, and some even higher-frequency behavior. If desired, one might measure the frequency of these oscillations with help from cursors. Often, these behaviors can be traced back to something happening with the DUT, or perhaps its power supply.

    Monday, September 18, 2017

    Test EV Fuel Cells With an Automatic Battery Bank Tester

    3kW Electronic Load For Testing Fuel Cells
    Simple to use powerful electronic load has constant current/power/voltage/resistance modes

    The Model PT04-FC 3kW Electronic Load which has been specifically developed to accommodate the testing of fuel cells as well as low-voltage power supplies, including 24V telecommunications power systems and supplies.  The load is simple and intuitive to operate and is housed in a 4U 19” rack-mount case, with two quiet temperature-controlled fans mounted on the front panel to provide forced air cooling.  Weight has been minimized for easy transportation.  The rugged, reliable design of the PT04-FC provides Constant Current control from 0 to 120A on the 24V range setting and 0 to 60A on the 48V setting, with Constant Power, Constant Resistance, and Constant Voltage also available as standard operational modes, accessible via ATE/remote control.

    The Model PT04-FC is also useful as a general-purpose variable electronic load.  It is rated to operate continuously over the specified current and voltage ranges. The standard model offers a differential 0 - 5V input for simple control systems, or can be paralleled for use in larger systems.  
    A typical application might consist of an external DC power source to be tested (e.g. an individual battery, or battery pack, a power supply, or a telecomm rectifier) connected to the PT04-FC’s DC power connectors, with the Remote Control Box connected to the load. More than one PT04-FC load can be connected in parallel. 
    The standard CP, CR and CV modes are realized by the use of an analog processor circuit between the differential amplifier and load control circuit. This processor measures the DC input voltage to the load, then generates a current demand which gives the required level for the power, resistance or voltage that has been demanded. The Mode control may be changed even while the load is sinking current - the PT04-FC has in-built protection for this. An over temperature alarm monitors the heat-sink temperatures; if a pre-set limit is exceeded then an alarm sound is emitted, the fault output line is activated, and the load current is clamped to 0A until the heat-sink temperature has reduced sufficiently. 
    Made by Manatronics, the Australian ISO9001:2008 manufacturer whose load banks are in use all over the world, the PT04-FC 3kW Electronic Load is available now from their USA technical distributor Saelig Company Inc. For detailed specifications, free technical assistance, or additional information, please contact Saelig (585) 385-1750, via email:,
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