ubitx v4 distortion/ vibration in audio out

Biju Apkrcl

I have ubitx 163/ 2 tuned to correct  frequency, reception is good but audio is vibrating badly making distortion. I  connected an external amplifier from TP 20 . The same problem existing. That means distortion from  earlier stages. How to solve this issue? Please help.


Have you tried adjusting the BFO frequency? Often that is the problem with poor or distorted audio.