On Mar 21, 2024, at 12:02?PM, Ronald Taylor <wa7gil@...> wrote:

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Hi Dave. What signal level did you see when you did the bandpass filter adjustment??

Ron

On Thu, Mar 21, 2024 at 11:18 David Delongchamp <adukhntr@...> wrote:

I just built a QCX version 3 PCB that I purchased from QRP Labs several years ago. Upon completion of the kit I am having volume issues. With the gain turned to max I can barely hear the tone. I noticed when doing the IQ balance that I could not get higher than 3 when the directions said turn the gain control mid way and you should tune at around 9. I could only reach 3 with max gain.
Have you heard of this problem? If so what can I do to resolve this issue.
A little more info on my QCX. I am using the newest ATmega 1.09A chip. In the build I changed R41 to 150 ohm, R42 to 1.2 Kohm and C31 to 2.2 micro farad this was to improve the keying envelope.
Any input would be greatly appreciated.
Dave
W6MRD