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Archive for 2021

Programming Example: Controlling an SPD power supply via Sockets over LAN

Posted on: June 18th, 2021 by Doug Lovell
Programming Example: Controlling an SPD power supply via Sockets over LAN 18/06/2021
Here is a Python 3.6 example of using sockets to control an SPD power supply connected to a computer using LAN. NOTE: The SPD uses VXI-11 protocol for LAN. On some systems, it is helpful to use the VXI-11 format for the IP address: “TCPIP::ip.add.re.ss::INSTR” Here is the program in full: ...

Verification of a LAN connection using Telnet

Posted on: June 18th, 2021 by Doug Lovell
Verification of a LAN connection using Telnet 18/06/2021
Automating a test can dramatically increase the productivity, throughput, and accuracy of a process. Automating a setup involves connecting a computer to the test instrumentation using a standard communications bus like USB or LAN and then utilising code entered via a software layer (like LabVIEW, .NET, Python, etc..) to sequence the specific instrument commands and process data. This process n...

Open Socket LAN connection using Python

Posted on: June 18th, 2021 by Doug Lovell
Open Socket LAN connection using Python 18/06/2021
Automating a test can dramatically increase the productivity, throughput, and accuracy of a process. Automating a setup involves connecting a computer to the test instrumentation using a standard communications bus like USB or LAN and then utilising code entered via a software layer (like LabVIEW, .NET, Python, etc..) to sequence the specific instrument commands and process data. In this note, ...

Verification of a working remote communications connection using NI – MAX

Posted on: June 18th, 2021 by Doug Lovell
Verification of a working remote communications connection using NI – MAX 18/06/2021
Automating a test can dramatically increase the productivity, throughput, and accuracy of a process. Automating a setup involves connecting a computer to the test instrumentation using a standard communications bus like USB or LAN and then utilizing code entered via a software layer (like LabVIEW, .NET, Python, etc..) to sequence the specific instrument commands and process data. This process n...

Programming Example: Create a stair-step waveform using Python and PyVISA using LAN (SDG1000X, SDG2000X, SDG6000X)

Posted on: June 18th, 2021 by Doug Lovell
Programming Example: Create a stair-step waveform using Python and PyVISA using LAN (SDG1000X, SDG2000X, SDG6000X) 18/06/2021
The SIGLENT SDG series of arbitrary waveform generators can use waveforms created programmatically. The waveform data can be sent as individual samples formatted as binary little-endian, 2s complement values. In this programming example, we create a 10 point arbitrary waveform that starts at the least-significant bit and steps up to the most-significant bit to help with understanding the req...

Inter Modulation Distortion (IMD) testing

Posted on: June 18th, 2021 by Doug Lovell
Inter Modulation Distortion (IMD) testing 18/06/2021
Two SIGLENT SDG owners and Amateur Radio operators and frequent experimenters, Steve Ratzlaff AA7U and Everett Sharp N4CY, got together and built a very thorough test procedure for testing Intermodulation Distortion (IMD) on a Loop Amplifier using a SIGLENT SDG2042X generator and SSA3021X spectrum analyser. IMD is an important test for verification of audio amplifiers and radio receivers as hig...

Multi Channel function generator synchronisation

Posted on: June 18th, 2021 by Doug Lovell
Multi Channel function generator synchronisation 18/06/2021
1. Introduction Multi-channel function generators are useful in many situations. For example, in Radar testing the generator needs to output several phase coherent signals and for the phase to be independently adjustable for each signal. In 3-phase power line harmonic distortion testing, a 4 channel generator is required to simulate the multiple voltages and currents. ...

Secure products without K-lock slots

Posted on: June 18th, 2021 by Doug Lovell
Secure products without K-lock slots 18/06/2021
Many products have Kensington, or K-lock slots to help provide a location to secure a cable lock or other device to help prevent theft. Some products do not have locations for cable lock connections. In this case, we recommend using a special glue or physical attachment system to secure the cable to the case of the instrument. Here is an example: https://www.kensington.com/p/products/s...

AWG Basics

Posted on: June 18th, 2021 by Doug Lovell
AWG Basics 18/06/2021
Many electronic designs feature the ability to monitor or measure input signals and then perform another task or function based on that input signal. A simple example could be a circuit that looks for an input voltage to exceed a specific amount and triggers another action after it occurs. In such cases, having the ability to configure and deliver a known or simulated signal can be a critical addi...

The basic output waveform and related parameters of the arbitrary waveform generator

Posted on: June 18th, 2021 by Doug Lovell
The basic output waveform and related parameters of the arbitrary waveform generator 18/06/2021
Traditional function generators can output standard waveforms such as sine waves, square waves, and triangle waves. However, in actual test scenarios, in order to simulate the complex conditions of the product in actual use, it is often necessary to artificially create some “irregular” waveforms or add some specific distortion to a waveform. Traditional function generators can no longer meet t...

Generating an Activation Code (Option Code)

Posted on: June 18th, 2021 by Doug Lovell
Generating an Activation Code (Option Code) 18/06/2021
Introduction Many SIGLENT products have options that can be activated by entering a special activation code into the front panel. This note covers how to generate the activation code.   Setup Contact your Authorised SIGLENT sales office or distribut...

EasyPulse Technology and Its Benefits

Posted on: June 18th, 2021 by Doug Lovell
EasyPulse Technology and Its Benefits 18/06/2021
INTRODUCTION: The majority of modern arbitrary/function waveform generators utilise DDS technology (Direct Digital Synthesis), but there are a few obvious defects using this technology directly. To solve these disadvantages, SIGLENT invented a pulse generating algorithm called EasyPulse technology. In this note, we will describe the basics of DDS and how EasyPulse can help g...

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