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Old 19th Oct 2018, 2:39 am   #16
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Default Re: MuTek Pre-amps for the FT290R

Be wary of measuring noise figure of complete receivers, you want to be sure there is no agc action at either of the two levels of noise. Any gain reduction or compression of the higher level distorts the result and makes it look better than it really is.

It can be worth comparing results with both 15dB ENR and 6dB ENR sources.

David
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