精选优质文档-倾情为你奉上RF Quiz #11. What is the impedance of free space? 377ou2. What happens to the noise figure of a receiver when a 10 dB attenuator is added at the input? a) Noise figure increases by 10 dBb) Noise figure decreases by 10 dBc) Noise figure doesnt change3. An RF system has a linear throughput gain of +10 dB and an output 3rd-order intercept point (OIP3) of +30 dBm. What is the input 3rd-order intercept point (IIP3)? a) +20 dBmb) +40 dBmc) +30
