Recent content by znb

why don't you reply me there on yahoo please??

okk. why do we say if we have more bps we require more bandwidth. as per my understanding..in order to send many bits in a unit time..we require as many frequencies to modulate them in that unit of time?? otherwise if we have lesser frequencies then we need to come up with some good higher...

lets say our voice is digitized our sx is 1010 now it is digitally modulized using PSK either 2,4,16 etc. we ll have a complex wave form with varying phase BUT ofcourse this can not be made to travel in actual, rather all the frequencies that helps make this wave form to occur in such complex...

how does our speech signal propagates in air? first our speech is digitized then digital modulation is performed like BPSK etc and then this whole thing is sent using analog modulation using some higher freq carrier rite?

but there i can make you understand more clearly what i exactly want to know

why don't you come to yahoo sir??

ME: and if let's suppose u are using FM then how your anteena transmit the signal. eg. for 101 it transmit one freq then for 010 another freq from the band and so on...in a consecutive fashion..is it right?? YOU: No, the FM transmitter simultaneously transmits on all the frequencies in...

but you said earlier and if let's suppose u are using FM then how your anteena transmit the signal. eg. for 101 it transmit one freq then for 010 another freq from the band and so on...in a consecutive fashion..is it right?? No, the FM transmitter simultaneously transmits on all the...

you tell me how it goes in this case.. -yu have binary data 1 0 and you are required to do frequency modulation. -if ur data is 1000001 -then for 1 you slect one freq and for 0 another -but 1 only appeares twice in the message where as 0 appears 5 times -you transmit freq A and B for 0 1...

but complex waveform doesn't travel in air?

ok that means in air we transmits all these frequencies that helps in constructing a waveform that changes its phase from 0 to 180 and to get this, all the frequencies are sent at different power levels.. MY main concern is that how we transmit them in air??i mean all these freq ll be in...

ok if transmitter transmits all the frequencies in that band simultaneously then we would have different sinusoids in the air as an output of our antenna..lets say 900Mhz, 900.1 Mhz and so on rite?? but they r pure sinusoids where is our data?there must be some thing that indicates..e.g...

also tell me why we do need more BW for higher cap data. higher cap>>more bits per sec>>more variations in the data>>more freq components present coz of variations>>therefore more BW? is this right?? please correct me. BUT variations can me bw 2-3 frequencies?right then how this whole...

>>When people say "I'm transmitting my data at 2 GHz," they do not mean that they're using only one specific frequency. What they mean is they're transmitting over some band of frequencies centered around 2 GHz. I got this thing sir but how does it transmit in the air. does your antenna...

hi, 1.please tel me in detail why do we say that for higher capacity we require more bandwidth? higher capacity means more data rate, meaning more bits per seconds(and i know BW is bps) but tell me in terms of frequencies availble in a band..coz we transmit our signal on 1 freq then what it...