Add a cap to ground at the raduino end of the tuning pot wire if you have not already done so, same 0.1uF as the WireUp instructions say to put at the pot.
Allard has made a number of improvements to freq stability with his sketch, including oversampling of the pot and the flutter fix.
He also disables freq changes while transmitting.
Could go into Allard's settings menu and reduce the size of the pot tuning range, that would help reduce the tendancy to jump around.
Could adjust the sketch to disable any frequency changes (except rit) once you hit the ptt button, this ptt freq lock ?gets turned off when you try to move the tuning knob more than a khz or so.
Or could add a lock switch, adjust the code so when the sketch sees this switch on it ignores the tuning pot and leaves the operating freq where it's at.
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On Mon, Jul 31, 2017 at 08:35 am, KC8WBK wrote:
The unstable frequency on transmit is a bigger problem so I will shift my attention to that.? Any ideas for what to try?
