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Characterize 80+80 MHz signal with single-channel analyzer
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on Jul 11, 2011
on Jul 11, 2011 by tabbott
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How can I characterize an 80+80 MHz signal, if I only have a single-channel analyzer?
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Jul 11, 2011 4:08 PM
Each frequency segment of an 80+80 MHz signal is completely self-contained. Each frequency segment just contains a standard 80 MHz 802.11ac signal, and the 802.11ac transmitter requirements like constellation error and spectral flatness apply separately to each segment. Therefore, a single-channel 80 MHz analyzer can be used to analyze and characterize each segment separately.
Of course, analyzing the segments separately does not provide any information about time alignment, frequency drift, or interactions between the frequency segments. A multi-channel analyzer is needed for this.
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