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Re: [Discuss-gnuradio] Signal composition and intermodulation filtering
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From: |
Louis Brown |
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Subject: |
Re: [Discuss-gnuradio] Signal composition and intermodulation filtering |
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Date: |
Thu, 12 Sep 2013 21:19:52 -0500 |
Alessandro,
You may be over-driving the DAC, which will generate very bad IMD. You have to
be careful when summing signals as the total floating point value must never
exceed +/- 1.0. If you are summing two signals then set your sinusoid
amplitude to 0.5. Summing 4 set it to 0.25.
Lou
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