Answer / pratik yadav

10-100Mhz

for AM IF is 455kHZ

for FM IF is 10.7MHZ

where and why do we use stright and cross cable?

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What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response?

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Consider sinc(x):where sinc(x)=sin (xpi)/xpi. and sinc(x) have max value i.e. unity at x=0 .now if x=0.then pix =0 and sin (pix)=0 at x=0. then above expression sin (xpi)/xpi.should be of 0/0 form i.e. in-determined form. then how sinc(x) is one at x=0. pi is constant.

1 Answers  

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Draw the circuit of cc configurations using npn transistor.

0 Answers  

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i)if we use f.m for video signals in t.v. what will happen?

3 Answers  

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Instead of specifying SETUP and HOLD time, can we just specify a SETUP time for '1' and a SETUP time for '0'?

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why we use external oscillator in 8051 microcontroller ??

2 Answers   Infosys,

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if any body have tyco electronics placement papers,please forward to my mail id kadhar.basha@gmail.com ,please as early as possible. thanks&regards kadhar basha

0 Answers   Tyco,

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In TRx, What is the function of SDCCH, BCCH.

2 Answers   NSN,

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hi my name is saikiran ,iam an betch in electronic and communication i got i-20 in npu and iam having 24 backogs gre 860 ielts 5.5,how i should define my seif so please give me appropriate answer i need some help

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interviewr asked about sampling theorem and i said the common def.(i.e ...sam freq must >=s max freq in the signal for a sampled signal to recover without alising).he asked that i have a sin signal of freq 1hz and i sampled at two zero amplitude points can it be recoverable without aliasing????

4 Answers   BARC,

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what is mean by biasing?

2 Answers  

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