A superheterodyne receiver is receiving a signal from an AM modulator where the
carrier signal has an amplitude Ec and carrier frequency if fc. Frequency of the
information signal is fi. The modulator has following parameters.
• output (load) resistance – RT,
• modulation index – m,
• total amplification through the modulator stages – GT
• During the propagation through the air signal power is attenuated by a factor
GP (GP < 1).
a. Calculate the input power received at the receiver.
b. If the intermediate frequency of the receiver is fIF, what is the maximum RF
bandwidth the device can have if the receiver is not to suffer from image
frequency problem.
c. If the RF bandwidth from part “b” is used and noise density (noise power per
Hz) is N0, calculate the SNR at the input of the receiver. Assume the system
has a LC filter in the IF stage.
d. If the total power amplification through the receiver stages is GR find the
output power of the receiver.
e. If the noise power at the output is 2GR times that at the input of the receiver,
find the NR for the receiver.
Show more
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more