Foll owing- CH and m are used to geherate an A Signal the modulation index of the geh AM signal is 0.5 then the qualitySE is PsE Pc (a)士 ,(b)古 (c)号 (d) A 4 GHZ carrier is D SB-SC Modula with by a Low Pass message sighal aximum Freguency of 2MHZ the result signal is to be ideally sampPled. Th minimum Freguency of the SamPling impulsis:- k)8GH2 (d18004 8MHZ

1. The Voltage spectrum of FM signal is shown in Figure 1. The maximum amplitude of modulating signal is 5V. Calculate the bandwidth , modulation index ,Carrier frequency, modulating frequency and specify the type of Modulator(narrow band or wide band). 1.54 4.06 4.06 2.45 2.45 0.91 0.91 0.21 0.21 192 194 196 198 200 202 204 206 208 KHz

We have a baseband channel with a 1-MHz bandwidth. What is the data ratefor this channel if we use each of the following line coding schemes? a. NRZ-L b. Manchester c. MLT-3 d. 2B1Q

7-24

3- Suppose that on an AM signal, the Vmax Value read from the graticule on the oscilloscope screen is 5.9 divisions and Vmin is 1.2 divisions. What is the modulation index. Calculate Ec and Em.

an fm broadcast station operates with a peak to peak deviation of 130 khz. calculate the percentage modulation determine the peak frequency deviation and modulation index for a frequency modulator with a deviation sensitivity of 10 khz/v and modulating signal of 5cos[2pi(2500)t] when the modulating frequency in an fm system is 500 hz and the modulating voltage is 2.6 v, the modulation index is 40. find the maximum deviation.what is the modulation index when the modulating frequency is raised to 800 hz and the modulating voltage is simultaneously reduced to 1.3 V what is the modulation index of an FM transmitter whose frequency deviation is 50 kHz whiter irs audio frequency is 10 kHz what is the deviation ratio of an FM signal if the maximum allowable deviation is 12 kHz and the maximum intelligence frequency of 4 kHz

Please help with parts B4 and B5 of this practice question. Thank you

If the carrier frequency 1000hz and reference voltage =10 V with modulation Index 0.4 and modulation frequency 8. find output voltage and frequency?

[Q1] Assume there are 50 signals, each one is band-limited to 10kHz and sampled at a rate 28% over the Nyquist rate. Assuming these signals have the same voltage range, the samples of each signal are quantized with the maximum quantization error is 0.31% of the peak amplitude. The quantized samples are coded to be binary using PCM. The binary bits from each signal are multiplexed using TDM-PCM. Determine the channel bandwidth required to transmit the multiplexed signal.

ELECTRONIC ENG PLS