Quote Originally Posted by BrianT View Post
until we tried a pair of anti-parralel shottkys across the input. The earth braid to ground had to be beefed up to reduce noise.
Thanks Brian. I hear what you're saying, but just can't picture how exactly such a thing would be implemented.

I've got an antenna - a piece of wire... with a signal that goes to an input of a "radio stage", it sits inside a grounded SMA connector with no electrical connection to the signal line obviously.

If I were to tie a single shottky from the signal line (antenna) to ground, as it has a low forward voltage drop, but it still does have "some" voltage drop - the very low voltage signal itself shouldn't be effected, but if a spike were to happen, it would cause the schottky to "open" and that voltage would be quickly dumped to ground. Am I picturing this right? Sounds too simple.

Also, as EMP is a wave, it's actually kind of an A/C signal induced in the antenna - so should I put a pair of schottky's - one pointed either direction?

Thanks everyone. Don't know why I'm having such a hard time picturing this.