firmanwiz

hi buddies, i have a problem with my cctv installation, i used belden rg-58 for the cabling. for 400 metres length it is okay, but when i used 600metre cable, the video data is lost. i have invested so much money for the belden cable.. btw do you all have solution to my problem?? or may be u all can tell me the video amplifier circuit for my problem.. thx before.. sorry my english is bad...