I should have directly commented on the A2 and A6 pins for PTT. Back in January Jerry recommended I change my A7 tuning pin to A6 because a short burned out the A7 input cell. I just did it and nothing happened with regards to PTT. A comment says this about that pin- "A6 is to implement a keyer, it is reserved and not yet implemented".?
The point is read all the comments, experiment, and keep in mind the raduino is a project starting out with the 20 meter BITX 20. That's why the info about the VFO is about an14khz example.
