Your Perfect Assignment is Just a Click Away
We Write Custom Academic Papers

100% Original, Plagiarism Free, Customized to your instructions!

How It Works
Order Now
glass
pen
clip
papers
heaphones

Discussion: Signal Modulation, Transmitters and Receivers

by | May 14, 2022 | Engineering | 0 comments

by | May 14, 2022 | Engineering | 0 comments

Discussion: Signal Modulation, Transmitters and Receivers

Answer /discuss the following 15 questions. Your answers should have detailed explanations. Topics: Time & frequency domain, AM, FM and PM modulation, Noise in FM, Transmitters, Topologies, SSAM transmitter, Power measurements, Receiver topology, Demodulation and Receiver variations.

Questions:

1) A sine wave carrier has a frequency of 75KHz. A modulation signal has 2 sine waves at 2KHz and 4KHZ. If a signal is applied to a full carrier AM (Amplitude Modulation) transmitter, what are the output frequencies?

2) A sine wave carrier has a frequency of 75KHz. A modulation signal has 2 sine waves at 2KHz and 4KHZ. If a signal is applied to a full carrier DSBSC (Double Side Band Suppressed Carrier), AM (Amplitude Modulation) transmitter, what are the output frequencies?

3) A sine wave carrier has a frequency of 75KHz. A modulation signal has 2 sine waves at 2KHz and 4KHZ. If a signal is applied to a full carrier SSBSC (Single Side Band Suppressed Carrier), USB (Upper Side Band) AM (Amplitude Modulation) transmitter, what are the output frequencies?

4) A sine wave carrier has a frequency of 75KHz. A modulation signal has 2 sine waves at 2KHz and 4KHZ. If a signal is applied to a full carrier SSBSC (Single Side Band Suppressed Carrier), LSB (Lower Side Band) AM (Amplitude Modulation) transmitter, what are the output frequencies?

5) A modulation signal has 3 sine waves at 4KHz, 8KHZ and 12KHz. The carrier frequency is 185KHz. If a signal is applied to a SSBSC (LSB) AM transmitter, what are the output frequencies?

6) How is modulation done in a full carrier AM (time domain) circuit? Do we just add the carrier signal to the modulating signals?

7) Explain the problems caused by overmodulation of an AM signal.

8) It is well known that AM (Amplitude Modulation) is highly effected by noise since noise has effect on signal amplitude and not signal frequency. So, for an AM system, can we say the “envelope” is due to the amplitude of un-modulated carrier signal?

9) Explain what Quadrature AM is and its main problem.

10) What do AM, FM, PM, DSB, DSBSC, SSBSC, NBFM, WBFM stand for?

11) It is known that there are 3 parameters in a sine wave that may be varied for signal modulation. Those are: Amplitude, Frequency and Phase parameters. Explain the relationship between Phase and Frequency of a signal.

12) FM (Frequency Modulation) was originally designed with the idea of having noise immunity compared with AM (Amplitude Modulation). Explain why.

13) An SSB transmitter radiates 500 watts at 100% modulation. What will it radiate with no modulation?

14) Is this a correct statement: The FM modulation index: increases with both deviation and modulation frequency? Why?

15) Explain “Threshold” and “Capture” effects.

Order Solution Now

Our Service Charter

1. Professional & Expert Writers: Topnotch Essay only hires the best. Our writers are specially selected and recruited, after which they undergo further training to perfect their skills for specialization purposes. Moreover, our writers are holders of masters and Ph.D. degrees. They have impressive academic records, besides being native English speakers.

2. Top Quality Papers: Our customers are always guaranteed of papers that exceed their expectations. All our writers have +5 years of experience. This implies that all papers are written by individuals who are experts in their fields. In addition, the quality team reviews all the papers before sending them to the customers.

3. Plagiarism-Free Papers: All papers provided byTopnotch Essay are written from scratch. Appropriate referencing and citation of key information are followed. Plagiarism checkers are used by the Quality assurance team and our editors just to double-check that there are no instances of plagiarism.

4. Timely Delivery: Time wasted is equivalent to a failed dedication and commitment. Topnotch Essay is known for timely delivery of any pending customer orders. Customers are well informed of the progress of their papers to ensure they keep track of what the writer is providing before the final draft is sent for grading.

5. Affordable Prices: Our prices are fairly structured to fit in all groups. Any customer willing to place their assignments with us can do so at very affordable prices. In addition, our customers enjoy regular discounts and bonuses.

6. 24/7 Customer Support: At Topnotch Essay, we have put in place a team of experts who answer to all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.