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  • About relationship between bandwidth of transmitter and reciever in antenna theory..

    Mitali Shukla

    Mitali Shukla

    @mitali-shukla-HhlMSQ
    Updated: Oct 26, 2024
    Views: 1.1K
    I wanted to know why b.w. of transmitter is more?
    I read it from my text buk according to which transmitter's bandwidth is greater. But then this would result in information loss...as when the infrmatn travels through the channel some noise also gets added to it and due to lesser bandwidth of receiver, it may not receive whole informatn....in that case i think receiver should have greater b.w.
    Please it would be a great help if anyone could make these concepts clear to me.
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  • Naman Agarwal

    Member • Aug 4, 2012

    look..through broader bandwidth, we can send more no. of channels at a single time ...thats why transmitter bw is kept higher..while in recieving case, only particular frequency is recieved...we dont want any kind of noise or distortion at the recieving end..so recieving bw is kept lower so that only that frequency can be recieved...
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  • Mitali Shukla

    Member • Aug 4, 2012

    Ok...i m clear about greater bw of tr. now....but i dint get one thing that when the informatn get mixed with noise does it get distorted.?..and if yes then due to lesser bw of receiver it wud result in informatn loss....why cant we have greatr bw of receivr n use band pass filtr to remove the noise? Informtn loss wil also b not there...
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  • [Prototype]

    Member • Aug 4, 2012

    Mitali Shukla
    Ok...i m clear about greater bw of tr. now....but i dint get one thing that when the informatn get mixed with noise does it get distorted.?..and if yes then due to lesser bw of receiver it wud result in informatn loss....why cant we have greatr bw of receivr n use band pass filtr to remove the noise? Informtn loss wil also b not there...
    Bandwidth is a costly asset. The signal distortion level is generally under tolerable limits & its cheaper to recover sufficient information.

    The higher bandwidths are only used where security is the concern. In such cases the Spread Spectrum Techniques like Frequency hopping is used. CDMA is another example.
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  • Naman Agarwal

    Member • Aug 4, 2012

    Mitali Shukla
    Ok...i m clear about greater bw of tr. now....but i dint get one thing that when the informatn get mixed with noise does it get distorted.?..and if yes then due to lesser bw of receiver it wud result in informatn loss....why cant we have greatr bw of receivr n use band pass filtr to remove the noise? Informtn loss wil also b not there...
    listen...have u ever listen radio...sometimes it gets disturbed..all is due to unwanted noise...
    of course it get distorted..adding of two signals will result in another new one..which wont be the required one...ie., original...
    the bw of reciever is fixed ie., it allows only wnted frequency...so if u extend the range of that frequency the unwanted frequency will also come in the form of noise..isnt it??...there will be no info loss...
    adding a band paas filter will increase the cost uselessly...it should be economic... 😀
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  • Mitali Shukla

    Member • Aug 6, 2012

    [Prototype]
    Bandwidth is a costly asset. The signal distortion level is generally under tolerable limits & its cheaper to recover sufficient information.

    The higher bandwidths are only used where security is the concern. In such cases the Spread Spectrum Techniques like Frequency hopping is used. CDMA is another example.
    ok i got it ...thanks a lot😀
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  • Mitali Shukla

    Member • Aug 6, 2012

    naman2511
    listen...have u ever listen radio...sometimes it gets disturbed..all is due to unwanted noise...
    of course it get distorted..adding of two signals will result in another new one..which wont be the required one...ie., original...
    the bw of reciever is fixed ie., it allows only wnted frequency...so if u extend the range of that frequency the unwanted frequency will also come in the form of noise..isnt it??...there will be no info loss...
    adding a band paas filter will increase the cost uselessly...it should be economic... 😀
    ya very true....thanks for help😀
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  • Naman Agarwal

    Member • Aug 7, 2012

    my pleasure
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