Regarding RF transceiver issue

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Nbj123

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Hello,

I am using a synthesizer in my project. but I observed the problem that instead of showing carrier output it shows waveform-like modulation in the output.

Please guide as soon as possible.
 

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This can happen, e.g. due to
- instable PLL loop
- inappropriate fractional synthesizer design
- instable reference clock
- noise entering the PLL loop

We need more information
 

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