SureCall~Fusion2Go 3 Perm Mnt Fusion2Go 3.0 Fleet is as rugged as it is powerful to meet the needs of any boundary pusher, fleet driver or public safety official who require a fixed antenna solution. Includes the NMO (non-magnetic option) antenna that permanently mounts to any vehicle to withstand the most rugged work and weather conditions. The permanent nature of the NMO antenna requires the help of a professional installer, as the installer will need to drill a small ¾" hole in the roof of the vehicle and run the antenna’s cable between the vehicles exterior and ceiling headliner