Application Notes

Spectrum Analyzers

DIY Spectrum Analyzer Input Protection

May 22, 2019

Spectrum analyzers like the SIGLENT SSA3000X and SVA1000X series are extremely useful instruments that can provide invaluable insight into broadcast signal performance, transmitter troubleshooting, and interference as well as RF device characterization and EMC testing. But, like other spectrum analyzers, they are very sensitive and can be damaged easily, if the proper precautions are not … Continued

Programming Example: Using VXI11 (LXI) and Python for LAN control without sockets

October 3, 2018

In an effort to meet the demands of remote monitoring and control, modern test instrumentation is leveraging more communications busses and than ever before. Each type of bus can also have numerous layers that can be utilized for specific advantages. The VXI bus and subsequent software drivers form a convenient software API that can make remote control … Continued

Immunity testing with a Tekbox TEM cell

September 27, 2018

Tekbox put together a nice application note on immunity testing using a TEM cell and a SIGLENT SSA3000X spectrum analyzer. TEM cells are specialized hardware enclosures that can provide high electric fields and also do offer some shielding from environmental RF. If you are having immunity issues, this note may provide some helpful information and guidance. … Continued

EMC pre-compliance basics presentation

September 26, 2018

Here is a Powerpoint(c) overview of electromagnetic compliance (EMC) test basics, pre-compliance methods, and resources that can help a beginner get started with EMC testing. First delivered at the IRIS 2018 technology expo in Cleveland, OH 9/25/2018: PrecomplianceStarter_IRIS2018_JC

Attenuator verification using a spectrum analyzer with a tracking generator

September 7, 2018

Attenuators are elements of an electrical circuit that are used to decrease the amount of power delivered to the next stage of the circuit. An ideal attenuator would have a flat frequency response, that is, it would decrease the amplitude of all input signals equally, regardless of the frequency. In this note, we are going to … Continued

Programming Example: List connected VISA compatible resources using PyVISA

August 30, 2018

PyVISA is a software library that enables Python applications to communicate with resources (typically instruments) connected to a controlling computer using different buses, including: GPIB, RS-232, LAN, and USB. This example scans and lists the available resources. It requires PyVISA to be installed (see the PyVISA documentation for more information) *** #Example that scans a … Continued

How do I pick the right spectrum analyzer for my application?

July 25, 2018

Introduction The SIGLENT SSA3000X and SVA1015X products are based on a similar swept superheterodyne spectrum analyzer platform and have very similar starting prices. There are quite a few similarities, but also a few differences that could affect the end results for particular applications. The table below compares the major specifications and the comparable options as … Continued

DIY RF Probe Tutorial

July 23, 2018

Probing RF circuits can be tricky. Here are some resources for DIY probes https://elektrotanya.com/files/forum/2009/10/e04a036.pdf And instructables has built on this: https://www.instructables.com/id/DIY-1GHz-Active-Probe-for-Under-20/ http://welecw2000a.sourceforge.net/docs/Hardware/Aktiver_Tastkopf_mit_OPA659.pdf http://www.ti.com/ww/en/bobpease/assets/www-national-com_rap.pdf http://www.analog.com/media/en/technical-documentation/application-notes/an47fa.pdf NOTE: SIGLENT does not endorse any of these solutions. They are for reference only.