modulation indexm = 0.5 and the spectrum frequency for AM is shown figure: 6 64 -100-6fm -100 -100+6fm 100-6fm 100 100+6fm KHZ 1- determine Wc, Wm, fm, fe 2- draw the AM wave in time domain 3. determine Vm., Vs. 4-determine the power at carrier of the antenna resistance one ohm (1 2) 5- Write the AM equation with all values.

15. A 100-V carrier is modulated by a 1-kHz sine wave. Determine the sidefrequency amplitudes when m 0.75. (37.5 V) 16. A 1-MHz, 40-V peak carrier is modulated by a 5-kHz intelligence signal so that 0.7. This AM signal is fed to a 50- antenna. Calculate the power of each spectral component fed to the antenna. ( W, W) 17. Calculate the carrier and sideband power if the total transmitted power is 500 W in Problem 15. (390 W, 110 W) 18. The ac rms antenna current of an AM transmitter is 6.2 A when unmodulated and rises to 6.7 A when modulated. Calculate %m. (57.9%) 21. An AM transmitter has a 1-kW carrier and is modulated by three different sine waves having equal amplitudes. If , calculate the individual values of m and the total transmitted power. (0.462, 1.32 kW)

Find the wavelengths of (a) a 450 MHz, (b) a 650 MHz, (c) an 8 MHz, and (d) a 850 KHz signal.?

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I need it asap  A 2 kHz audio signal modulates a 50 MHz carrier, causing a frequency deviation of 2.5 kHz. Determine the bandwidth of the FM signal.

JI - 1 lal ahi X Meet - wwi-swim-sWZ DQLSchQF608hEnQEkoXPxD96ltxqUdhM3leAVMtKKDCKdBTVZSxw/formResponse Part 3: Short Problems bla 4 What is the instantaneous frequency (in Hertz) of the following radar FM signal at t = 1sec. ? x(t) = 12cos(20nt + nt?) 10 Hz 10.5 Hz None of the mentioned answers. 20 Hz 11 Hz 20.5 Hz 12 Hz O 21 Hz 國

An FM signal has a deviation of 3 kHz and a modulating frequency of 1 kHz. Its total power is 5 W, developed across a 50 2 resistive load. The carrier fre- quency is 160 MHz. (a) Calculate the RMS signal voltage. (b) Calculate the RMS voltage at the carrier frequency and each of the first three sets of sidebands. (c) Calculate the frequency of each sideband for the first three sideband pairs. es Falerna avlop (d) Calculate the power at the carrier frequency, and in each sideband, for the first three pairs.

I hope to write a simple summary so that I can save it because I have exams Difference between Hertz Antennas (half-wave) and Marconi (quarter-wave) Antennas.

If the carrier signal is Vs (t) = Ve Sin (Wst). And the information signal is used to generate AM wave Vm (t) = Vm Sin (t), the AM Bandwidth is equal to 12 KHz, modulation index m = 0.5 and the spectrum frequency for AM is shown figure: 6 -100-6fm -100 -100+6fm 100-6fm 100 100+6fm KHZ | 1- determine Wc. Wm, fm. fe 2- draw the AM wave in time domain 3. determine Vm. Vc