Re: FT8 1500/3000

Adam Rong
 

Bret,

Congratulations on the success of building the kit. The strong signal you see on the spectrum is called Intermodulation Distortion (IMD). It is mainly caused by over driving the mixer stage. For the simplicity, let's stay with it but you can improve it by changing C5 from 104 to 105.

Thanks,
Adam

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