Hi Tom,
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This was behind my thinking about CMRR, and how much can actually be achieved in practice.
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My observation is that a maximum null depth of 20 to 30 dB is about the limit for a stable null, which is the basis for my CMRR guess estimate.
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Regards,
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Martin
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On Fri, Jan 31, 2025 at 05:03 PM, Tom - VE3PSZ wrote:
With regards to how much CMR is required, it should be remembered that a loop connected to an amplifier even with zero CMR will still show some nulls.
