I have an idea. I have some adhesive copper tape for shielding. You can use this to tape down the inside covers of your keyer and then ground to a single point to reduce external noise/radiation.
I suspect your antenna has a strong lobe in the direction of your keyer position. Shielding may alleviate this.
LMK if you want to try this.
Either that or try changing the decoupling capacitors C3 & C5 on the paddle inputs.
They are .01uF. You could try scoping these points while transmitting phone on 80M to see if it's being induced in the paddles.
I suspect your antenna has a strong lobe in the direction of your keyer position. Shielding may alleviate this.
LMK if you want to try this.
Either that or try changing the decoupling capacitors C3 & C5 on the paddle inputs.
They are .01uF. You could try scoping these points while transmitting phone on 80M to see if it's being induced in the paddles.