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Re: Spurious RF at beginning of transmission


 

I like Raj's 0.1uF fix, very simple and elegant. ?Oh, and very cheap.
Could add a jumper across it when operating CW.
Also, remove a new jumper that supplies power to the mic amp, not needed for CW.
That fixes the transmit pop on both CW and SSB without too much trouble.

If willing to do a significant hack to avoid messing with jumpers,
rearrange the first mixer for CW injection as on the uBitx and add Raj's 0.1uF modulator cap.




On Wed, May 31, 2017 at 09:58 pm, Jerry Gaffke wrote:
I'd probably advise that most just live with the pop and use Allard's scheme for CW
Those that aren't interested in CW can use your easily scrounged 0.1uF fix.

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