Re: Ubitx tx/rx "chatter" (read old thread)

Evan Hand

That seems to be a common problem depending on antenna and antenna connections.  I had similar issues with an off center fed dipole and RF on the coax braid.  Fixed it with snap on ferrites on the coax, others have used blocking baluns.  Also a .o1 to .1 mf cap on the PTT line to ground has been listed as helping. 

the above are my experiences and thoughts, YMV

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