Would mounting the ignition switch 1" close to the receiver switch cause Radio interference?

No guarantees it will or won't. But I would not, I try to place the ignition system components (battery, switch, and module), as far from the Rx as possible.

Thanks I keep every thing as far apart as possible. I just want to put the switches in the front of the cockpit.

Thou shalt remember the "Three Commandments" of Sucessful Gas Flying:

1) Thou shalt use a plastic pushrod for thine engine throttle.

2) Thou shalt keepeth thine kill switch on the firewall.

3) Thou shalt keepeth all thine radio equipment, including switches and batteries, 10" or more from the firewall.

Keepeth these commandments, lest thy noisy spark ignition engine causes the ground to rise up and smote your airframe mightily!

Seriously, I have never had a problem by following these three simple rules. I'm sure many don't obeserve any of them and fly with no problems, but why take chances....
Regards,
GPB

Check on all three. Thank's.

I personally will only fly a PCM reciever in a gas powerd model. They are not much more expensive and again, why take chances. I'd rather put 50 extra bucks into the radio then 1500 bucks into the ground at the end of the field. Also I use Dave Brown fiberglass push rods for my throttle. The plastic ones can affect your idle trim settings with air temp changes. Jeff