For even more immunity on analog signals use a low impedance interface like 4-20 mA. The input to a 4-20 mA receiver is typically terminated with a resistor between 50 to 500 Ohms. It takes one heck of a strong RF signal to have any noticable effect on a 50 ohm terminated input.
NASA's Orion Flight Software Production Systems Manager Darrel G. Raines joins Planet Analog Editor Steve Taranovich and Embedded.com Editor Max Maxfield to talk about embedded flight software used on the Mars on EE Times Radio. Live radio show and live chat. Get your questions ready.