Intermountain P44704 - HO Modern Locomotive PTC Antenna Arrays - CSX, Type 1

HO Modern Locomotive PTC Antenna Arrays - CSX, Type 1 (2 Assembled Narrow Antennas, 1 Square Antenna Dome) PTC = Positive Train Control -Individually Packaged -Fully Assembled and Painted -For use with post 2008 era layouts -Good for pre-2008 era locomotives operating post 2008 -Prototype Specific (check photos for specific antenna type for your locomotive)