understanding noise output in a mixer purely by datasheet

john23 All Messages By This Member #99684 Hello , I am assembling the bits and peaces of what I learned and trying to implement them into my mixer shown in the link below. there is the -174+10log10(BW) of the component my mixer is 10GHZ so its -174+100=-74 also the is conversion loss which affects the noise level. The harder thing for me to understand is the modulation affects because we can put unwanted spurs into our working band which could also ruin the SNR. Is there some mathmatical example I could use to assmeble all these factors together? Thanks.

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