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rf detector using 89c51/52 with lcd

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santoshaxl said:
hey can some one give me some hints how to detect rf signals to display frequency on lcd.
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Could you expain your question a bit. Do you mean you need to measure a frequency wirelessly or you just to detect a transmitter or some thing else?....cheers
 

    M

    mishra12

    Points: 2
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Hi,
but these isnt clear declared:
you need to display a frequency value only= you must apply a prescaler/counter as matbob told too,
you need a detection (measure the amplitude/power)= you need HF detector circuit (exists in ICs too)
maybe you need both systems_ display frequency & level/power too, also practically a spectrum monitor?
K.
 

ok i want to clear one thing i want to detect rf signal and i want to display detected signal over lcd.as karesz said
 

What kind of band, levels & resolution pls?
Then; your imagination is to display it in lines_similar spectrumanalyzers or with hystograms/columns?
K.
 

I need one too for my graduation project. if u have done it please contact with me please.
 

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