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Multi Span Analysis Application for Spans Greater than 20 MHz

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Filename: multispan.zip
Requirements: View

The NI PXI-5660 RF Signal Analyzer ( RFSA) has a real-time bandwidth of 20 MHz. This example demonstrates using NI Spectral Measurements Toolset (SMT) functions to analyze spectrums spans of more than 20 MHz.

For example, consider an application analyzing a spectrum from a start frequency of 10 MHz to a stop frequency of 60 MHz. To view this 50 MHz span using the RFSA, you first set up the PXI-5600 to examine three continuous 20 MHz spans. The NI PXI-5660 returns time-domain data corresponding to each of the three segments. This example demonstrates using the Spectral Measurements Toolset to transform the time-domain data for each segment to the frequency domain, concatenate the segments together, and then display the complete spectrum on a graph.

Requirements


Filename: multispan.zip

Software Requirements


Application Software: LabWindows/CVI Full Development System 5.5
Toolkits and Add-Ons: NI Spectral Measurements Toolkit
Language(s): C

Hardware Requirements


Hardware Group: High-Speed Digitizers (Scopes), RF
Driver: NI-SCOPE 2.1.2, NI-Tuner 1.0.1

 
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This example program (this "program") was developed by a National Instruments ("NI") Applications Engineer. Although technical support of this program may be made available by National Instruments, this program may not be completely tested and verified, and NI does not guarantee its quality in any way or that NI will continue to support this program with each new revision of related products and drivers. THIS EXAMPLE PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI.COM'S TERMS OF USE (http://ni.com/legal/termsofuse/unitedstates/us/).