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Incidentally, I've just been comparing IMD measurements using a Rigol DSA815 and a TinySA Ultra.
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I've been using my own test source and notch filters, and providing the notched test tones are kept to a level of -60dBm or lower, the TinySA Ultra actually produced better results.
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Every time I make comparisons against my other Spectrum Analysers, including HP 8500 series, I gain more respect for the TinySA Ultra.
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Regards,
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Martin
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On Mon, Oct 7, 2024 at 04:19 PM, Fred M wrote:
Besides the TinySA, whose own IP3 is 17 dBm at best
