Suppose a receiver has the following gain structure (all stages operating at maximum gain):
![1130_e0d9728a-62df-4b27-8dad-85bdb19c5e87.png](https://secure.tutorsglobe.com/CMSImages/1130_e0d9728a-62df-4b27-8dad-85bdb19c5e87.png)
(a) What is the total power gain of the receiver from antenna to speaker?
(b) What would be the minimum signal required at the antenna in order to get a power of 0.5 W into the speaker? Express your answer in both watts and microvolts, assuming a 50-? input impedance.
(c) Now suppose a 100 mV signal is applied to the antenna. Calculate the output power. Is this a reasonable answer? Explain. What would actually happen in a real receiver?