Does the noise figure of HMC6301 change if I make the LNA and IF amplifier gain as minimum as possible? If so what will be the value of this noise figure?
The gain in the LNA and IF Amp is controlled by adding attenuation. Adding attenuation obviously degrades the noise figure. The minimum noise figure will be achieved with the receiver at maximum gain (no attenuation). Figure 13 in the 6301 datasheet details the noise figure at max gain.
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