"Cut off" yes that was one of my issues. It's been implied to an investigation group, by an "engineer" that cut off is 100% signal loss. But as I touched on earlier. I have seen in the lab and field (as many others will have seen) that, if the RF source is strong enough.
Thanks very very much guys & gals. I now know I am not alone!
The IBM paper gave me the specific detail I was looking for. In particular it covered the 9mm hole size (amazing), square, in their test setup. It gave me the supportive graphical data I needed to confirm my own experience of many...
This discussion covers a subject that I have sought to resolve for a couple of years. A metal box, 2" x 2" x 6" long. Two round 3/8" holes in 1 side 2" appart. (mounting holes) Application is RF. What frequencies up to 40ghz are likely to enter via these holes. My experience has shown me from...