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frequency stability- eactance modulation vs varicap

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aj_silverthunder

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frequency stability!

which type of modulation has high stability in frequency .... reactance modulation or the varicap modulation!
because i made a FM TX of reactance modulation,but it had lot of frequency drift ,so next i am going to make a varicap modulation,so please suggest me!
 

Re: frequency stability!

Stability is not a function of modulation type !

If you need it to be stable, use a quartz crystal in conjunction with a PLL.

Brian.
 

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