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q carrier modulation by digital signalsdigitally modulated signals with low-pass spectral characteristics can be transmitted directly through
q what do you mean by compandingin order to lower the crest factor of a waveform so as to produce better performance a process known as companding is
a symmetrical fluctuating message with ftmax 63 v and kcr 3 is to be encoded by using an encoder that employs an 8-bit natural binary code to
a uniform quantizer is said to have 16 levels and hence is called a midriser the saturation levels are to correspond to extreme values of the message
q describe about digital communication systemsfla digital signal can be deflned as having any one of a finite number of discrete amplitudes at any
q define wireless communicationsthe latest wireless communications technology is the personal satellite phone the coverage is planetary and one can
q advanced mobile phone systemcellular systems employed cells with a radius in the range of 5-18 km the base station usually transmitted at a power
q show television waveformthe television waveform representing one scan is illustrated in figure a blanking pulse with a duration of 018 of the
q explain television signal transmissiontelevision signals in television signal transmission are the electric signals generated by converting visual
comparison of analog-modulation systemsthe comparison of analog modulation systems conventional am dsb sc ssb sc vsb fm and pm can be based on three
q what do you mean by fm stereoit shows the block diagram of an fm stereo transmitter and an fm stereo receiver the following notation is
for a few of the following problems the constant acceleration is due to gravity and will be notated as a g 32 ftsec2 g perhaps positive or negative
q explain the basic macroeconomic policy trilemma for open economiesanswer of three goals mainly countries share - independence in financial
q commercial fm radio broadcastingcommercial fm radio broadcasting utilizes the frequency band of 88 to 108 mhz for the transmission ofmusic and
q analog communication systemsan analog message is a continuum of possible amplitudes at any given time and analog signals are continuous in time and
from a source with pin 24 mw we want to get pout 60 mw at a distance l 20 km from the source alpha for the transmission line is given to be 23
i am try to make a vacuum tube oscillator for a larger project but i need help where to find the supplies for it where can i find
qdeveloping countries could delay opening the capital account until the domestic financial system is strong enough to withstand the sometimes flow of
qdescribe some of the features hindering developing countries from growing fasteranswer one of the features that are able to be hold developing
q what do you mean by signal multipathsignal multipath occurs with electromagnetic wave propagation via sky wave in the hf range when the transmitted
q mode of propagation of electromagnetic wavesthe mode of propagation of electromagnetic waves in free space and atmosphere may be subdivided into
q explain wireless electromagnetic channelswireless electromagnetic channels are used in wireless communication systems in which the electromagnetic
q wire-line and fiber-optic channelwire-line channels are used extensively by the telephone network for voice data and video transmission
q digital communication systemstoday digital communication systems are in common use carrying the bulk of our daily information transmission through