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frequencies for BFSK?

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rsashwinkumar

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In a Binary FSK, the carrier frequencies should be integer multiples of bitrate. Thats fine but what should be the spacing between the two carrier frequencies? Plz help me out...
 

biff44

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download an ADF7023 data sheet and look on page 9. There is a table of data rates vs optimized frequency deviation and receive filter bandwidths suggested there.
 

rsashwinkumar

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i asked this because, in Communication Systems by Simon Haykins, it is mentioned that the fsk frequencies to be (nc+i)/Tb, where nc is an arbitary integer and i=1,2.
By which it indirectly means that frequency shift to be 1/Tb. Is this condition necessary??
 
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