Trying to find a solution for a CAT5 network. I know that under normal circustances CAT5 cable is good for roughly 100m/300ft. I have a situation in a church that I do work for where I need to connect one building to another. The current situation is that the line runs underground from building to building. The person that installed this didn't realize that this distance was 400ft. My question is what can be used to strenghten this signal, repeat this signal, or anything on the current setup? I am on a very limited budget. Thanks for any help.