

1-3(l mark) Explain the operation of the multi channel analyser (MCA). 1-4 mark) How can an...
Explain how each signal 1 -3 can be demodulated. and Refer to Frequency Division Multiplexing, using a half circle to represent Signal-1 frequency spectrum, a rectangular for Signal-2 spectrum, and a triangle for Signal-3 spectrum. To show the frequency spectrum after each modulator, frequency spectrum over the channel, and frequency spectrum after each demodulator.
5. (3 marks) Explain how two or more radio stations can transmit over the same airspace (channel). 6. (10 marks) You are given a channel of transmission bandwidth 5 kHz, over which you must transmit a 6.25 kb/s data stream using baseband 2-ASK. For a raised-cosine pulse shape: (a) Calculate the maximum possible roll-off factor that can be used. (b) Calculate the f1 frequency. (c) Calculate the excess bandwidth. (d) Sketch and label the spectrum of the raised-cosine filter.
Write the transmitted signal of QPSK ofs(t) for i-1, 2, 3, 4, and 0 t 2) Explain why this modulation scheme is called QPSK 3) If the transmitted signals are sent over an AWGN channel, what is the optimum receiver to minimize the probability of error in decoding the symbols?
Write the transmitted signal of QPSK ofs(t) for i-1, 2, 3, 4, and 0 t 2) Explain why this modulation scheme is called QPSK 3) If the transmitted signals are...
How many orbitals can have n=4 and l =3 ?
can some one explain #1 and 4 please.
im confused by how to go about the final steps
thankyou
(1) Compute the spectrum of the matrix A and compute eigenvec tors for each eigenvalue -3 5 (2) Compute the spectrum of the matrix A and compute eigen 2 0 vectors for each eigenvalue G) (3) Compute the spectrum of the matrix A tors for each eigenvalue and compute eigenvec 1 2 (4) Compute the spectrum of the matrix A and...
Questions 1. Do these resistors satisfy Ohm's law? Explain your answer! 2. Is an ammeter connected in series or parallel with a circuit component? Explain. 3. Is a voltmeter connected in series or parallel with a circuit component? Explain. 4. (a) What advantage does 120-V operation offer over 240 V? (b) What disadvantages does it have?
how many electrons can be described by the quantum numbers n = 3, l = 1? what type of orbital is designated n = 4 , l = 2 mt = -1?
If you could please help with 1-3. 4 if you can but it is not
necessary. Thanks
Name: Solve problems 1-3. Problem 4 counts for extra credit. Each problem counts for 3 points. 1. Construct a non-ambiguous grammar generating the language consisting of all strings over the alphabet = {0,1,2), which contain no adjacent 1's. Provide a justification of correctness of your construction. 2. A Huffman tree constructed out of characters aj, az, az, ..., an, occurring with frequencies fi...
answered 3 marks b) answered In how many ways can 3 boys and 4 girls be arranged in a line so that two particular students are not next to each other? 3 marks answered 3 marks answered Submit part 3 marks 1 mark Unanswered 2 marks answered c) 1 mark answered How many 5-digit numbers have the property that all of the digits are different? 0:39:42 Submit part 1mart
please can you explain how to do it step by step; calculate the following wavelength in m for the following hydrogen atom electronic transitions: 1. n=4 to n=2 = 9.72 *10^-8 m 2. n=4 to n=2 = 4.86*10^-7 m 3. n=4 to n=3 = 1.875 * 10^-6 m 4. based on the questions above. in which region of the electromangnetic radiation spectrum would each of these transitions occur? 5. state two additional electronic transitions for hydrogen atoms that produce emissions...