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The App Notes/LAB Brief section of the Teledyne LeCroy Technical Library lets you search for, browse, and print the latest technical documentation. A search aid allows you to filter documents by category or keyword.

App Notes/LAB Brief on this site are available in PDF format for easy download.

App Notes/LAB Brief

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XStream Remote Control : Configuring DCOM Connectivity

The application running the graphical user interface of LeCroy Windows-based oscilloscopes is a COM Automation Server, and can be controlled from a networked PC using DCOM.

Setting Up an FFT

The Fast Fourier Transform (FFT) converts time domain waveforms, acquired in an oscilloscope, into frequency domain spectra. This allows the oscilloscope to display the same kind of information usually supplied by an RF spectrum analyzer.

RF Power Measurements - Measuring Peak & Average Power in Complex Signals

Teledyne LeCroy oscilloscopes help designers of quadrature modulation based communications systems evaluate the dynamic power requirements by providing a fast, easy method to measure instantaneous power on very long data records.

Testing Induction Lamps using Digital Oscilloscopes

There are many types of lighting devices including the familiar incandescent lamp, LED (light emitting diode), HID (high intensity discharge), fluorescent, and induction lamps. All of them can convert AC power (and in some cases DC power) into light. But there are differences in efficiency, complexity of construction, lifetime, brightness and in the color of emitted light. However the testing of all of these different types of devices can be done using digital oscilloscopes. This article will discuss testing of induction lamps.

Testing & Debugging Avionics Systems that Use ARINC 429 or MIL-STD-1553 Data Busses

The data busses in aircraft and spacecraft require very high quality in transmission and reception since proper communication of commands and data are crucial to operation. The ARINC 429 standard used predominately in commercial aircraft and the MIL-STD-1553 bus used in military avionics and space vehicles (military and commercial) have some common characteristics as well as important differences. This paper will give useful examples of how to view, test and troubleshoot these busses using digital oscilloscopes.

Differences Between ERES and HiRes


Both LeCroy’s ERES (Enhanced Resolution) math operation and the Tektronix HiRes (High Resolution) acquisition mode are FIR (Finite Impulse Response) filters. Their function is to remove high bandwidth components of the signal and high bandwidth components of acquisition noise from a waveform. Beyond that basic similarity the two operations are completely different on both a mathematical and operational level.

DCOM Setup for Windows 7 PC


Here are the procedures to connect a client PC to a Scope via DCOM

Lab WM786 - Creating Eye Diagrams for Low Speed Serial Signals using WaveScan

Use ScanOverlay in WaveScan to create eye diagrams for low speed serial signals.

Glitch Hunting Techniques

Intermittent transient events and glitches are among the most frustrating problems to solve. This is especially true if you have no idea about the nature of the transient. LeCroy oscilloscopes include tools to help capture and locate these pesky transients. This paper will focus on techniques for glitch hunting.

LAB WM-1026

Ground lead inductance can cause signal distortion. Choosing the correct signal lead configuration is important.
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