We live in central Missouri. Tornado's are our biggest concern. We live in the middle of timber and out as far as "no-where". For our tornado shelter located in the basement under the stairway and re-inforced we need communications to the outside world, just in case. We do have a cell phone but with a big disaster who knows what could be down. I'm looking at a Midland XT-511 and two hand held radios. The problem with the XT-511 is that I do not believe it has a jack for an outside antenna which we would probably need. All suggestions and help would be appreciated. It's been a number of years since I was involved in communications and times have changed. Thank you in advance.